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Floris Bos 2020-03-04 16:55:40 +01:00
commit d7b361ba44
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147
dependencies/cmcurl/lib/CMakeLists.txt vendored Normal file
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set(LIB_NAME cmcurl)
if(BUILD_SHARED_LIBS)
set(CURL_STATICLIB NO)
else()
set(CURL_STATICLIB YES)
endif()
# Use:
# * CURL_STATICLIB
configure_file(curl_config.h.cmake
${CMAKE_CURRENT_BINARY_DIR}/curl_config.h)
transform_makefile_inc("Makefile.inc" "${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake")
include(${CMAKE_CURRENT_BINARY_DIR}/Makefile.inc.cmake)
list(APPEND HHEADERS
${CMAKE_CURRENT_BINARY_DIR}/curl_config.h
)
if(MSVC AND NOT CURL_STATICLIB)
list(APPEND CSOURCES libcurl.rc)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /wd4127")
endif()
# SET(CSOURCES
# # memdebug.c -not used
# # nwlib.c - Not used
# # strtok.c - specify later
# # strtoofft.c - specify later
# )
# # if we have Kerberos 4, right now this is never on
# #OPTION(CURL_KRB4 "Use Kerberos 4" OFF)
# IF(CURL_KRB4)
# SET(CSOURCES ${CSOURCES}
# krb4.c
# security.c
# )
# ENDIF(CURL_KRB4)
# #OPTION(CURL_MALLOC_DEBUG "Debug mallocs in Curl" OFF)
# MARK_AS_ADVANCED(CURL_MALLOC_DEBUG)
# IF(CURL_MALLOC_DEBUG)
# SET(CSOURCES ${CSOURCES}
# memdebug.c
# )
# ENDIF(CURL_MALLOC_DEBUG)
# # only build compat strtoofft if we need to
# IF(NOT HAVE_STRTOLL AND NOT HAVE__STRTOI64)
# SET(CSOURCES ${CSOURCES}
# strtoofft.c
# )
# ENDIF(NOT HAVE_STRTOLL AND NOT HAVE__STRTOI64)
# The rest of the build
include_directories(${CMAKE_CURRENT_BINARY_DIR}/../include)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/..)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../include)
include_directories(${CMAKE_CURRENT_BINARY_DIR}/..)
include_directories(${CMAKE_CURRENT_SOURCE_DIR})
include_directories(${CMAKE_CURRENT_BINARY_DIR})
if(USE_ARES)
include_directories(${CARES_INCLUDE_DIR})
endif()
# For windows we want to install OPENSSL_LIBRARIES dlls
# and also copy them into the build tree so that testing
# can find them.
if(CMAKE_USE_OPENSSL AND OPENSSL_FOUND AND WIN32)
find_file(CMAKE_EAY_DLL NAME libeay32.dll HINTS ${OPENSSL_INCLUDE_DIR}/..)
find_file(CMAKE_SSL_DLL NAME ssleay32.dll HINTS ${OPENSSL_INCLUDE_DIR}/..)
mark_as_advanced(CMAKE_EAY_DLL CMAKE_SSL_DLL)
if(CMAKE_SSL_DLL AND CMAKE_EAY_DLL)
set(CMAKE_CURL_SSL_DLLS ${CMake_BIN_DIR}/${CMAKE_CFG_INTDIR}/libeay32.dll
${CMake_BIN_DIR}/${CMAKE_CFG_INTDIR}/ssleay32.dll)
add_custom_command(OUTPUT
${CMake_BIN_DIR}/${CMAKE_CFG_INTDIR}/libeay32.dll
DEPENDS ${CMAKE_EAY_DLL}
COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_EAY_DLL}
${CMake_BIN_DIR}/${CMAKE_CFG_INTDIR}/libeay32.dll)
add_custom_command(OUTPUT
${CMake_BIN_DIR}/${CMAKE_CFG_INTDIR}/ssleay32.dll
DEPENDS ${CMAKE_SSL_DLL}
COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_SSL_DLL}
${CMake_BIN_DIR}/${CMAKE_CFG_INTDIR}/ssleay32.dll)
install(PROGRAMS ${CMAKE_EAY_DLL} ${CMAKE_SSL_DLL} DESTINATION bin)
endif()
endif()
add_library(
${LIB_NAME}
${HHEADERS} ${CSOURCES}
${CMAKE_CURL_SSL_DLLS}
)
if(NOT BUILD_SHARED_LIBS)
set_target_properties(${LIB_NAME} PROPERTIES INTERFACE_COMPILE_DEFINITIONS CURL_STATICLIB)
endif()
target_link_libraries(${LIB_NAME} ${CURL_LIBS})
if(0) # This code not needed for building within CMake.
if(WIN32)
add_definitions(-D_USRDLL)
endif()
endif()
set_target_properties(${LIB_NAME} PROPERTIES COMPILE_DEFINITIONS BUILDING_LIBCURL)
if(0) # This code not needed for building within CMake.
if(HIDES_CURL_PRIVATE_SYMBOLS)
set_property(TARGET ${LIB_NAME} APPEND PROPERTY COMPILE_DEFINITIONS "CURL_HIDDEN_SYMBOLS")
set_property(TARGET ${LIB_NAME} APPEND PROPERTY COMPILE_FLAGS ${CURL_CFLAG_SYMBOLS_HIDE})
endif()
# Remove the "lib" prefix since the library is already named "libcurl".
set_target_properties(${LIB_NAME} PROPERTIES PREFIX "")
set_target_properties(${LIB_NAME} PROPERTIES IMPORT_PREFIX "")
if(WIN32)
if(BUILD_SHARED_LIBS)
# Add "_imp" as a suffix before the extension to avoid conflicting with the statically linked "libcurl.lib"
set_target_properties(${LIB_NAME} PROPERTIES IMPORT_SUFFIX "_imp.lib")
endif()
endif()
target_include_directories(${LIB_NAME} INTERFACE
$<INSTALL_INTERFACE:include>
$<BUILD_INTERFACE:${CURL_SOURCE_DIR}/include>)
install(TARGETS ${LIB_NAME}
EXPORT ${TARGETS_EXPORT_NAME}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
)
export(TARGETS ${LIB_NAME}
APPEND FILE ${PROJECT_BINARY_DIR}/libcurl-target.cmake
NAMESPACE CURL::
)
endif()

84
dependencies/cmcurl/lib/Makefile.inc vendored Normal file
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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
LIB_VAUTH_CFILES = vauth/vauth.c vauth/cleartext.c vauth/cram.c \
vauth/digest.c vauth/digest_sspi.c vauth/krb5_gssapi.c \
vauth/krb5_sspi.c vauth/ntlm.c vauth/ntlm_sspi.c vauth/oauth2.c \
vauth/spnego_gssapi.c vauth/spnego_sspi.c
LIB_VAUTH_HFILES = vauth/vauth.h vauth/digest.h vauth/ntlm.h
LIB_VTLS_CFILES = vtls/openssl.c vtls/gtls.c vtls/vtls.c vtls/nss.c \
vtls/polarssl.c vtls/polarssl_threadlock.c \
vtls/cyassl.c vtls/schannel.c vtls/schannel_verify.c \
vtls/sectransp.c vtls/gskit.c vtls/mbedtls.c vtls/mesalink.c
LIB_VTLS_HFILES = vtls/openssl.h vtls/vtls.h vtls/gtls.h \
vtls/nssg.h vtls/polarssl.h vtls/polarssl_threadlock.h \
vtls/cyassl.h vtls/schannel.h vtls/sectransp.h vtls/gskit.h \
vtls/mbedtls.h vtls/mesalink.h
LIB_CFILES = file.c timeval.c base64.c hostip.c progress.c formdata.c \
cookie.c http.c sendf.c ftp.c url.c dict.c if2ip.c speedcheck.c \
ldap.c version.c getenv.c escape.c mprintf.c telnet.c netrc.c \
getinfo.c transfer.c strcase.c easy.c security.c curl_fnmatch.c \
fileinfo.c ftplistparser.c wildcard.c krb5.c memdebug.c http_chunks.c \
strtok.c connect.c llist.c hash.c multi.c content_encoding.c share.c \
http_digest.c md4.c md5.c http_negotiate.c inet_pton.c strtoofft.c \
strerror.c amigaos.c hostasyn.c hostip4.c hostip6.c hostsyn.c \
inet_ntop.c parsedate.c select.c tftp.c splay.c strdup.c socks.c \
ssh.c ssh-libssh.c curl_addrinfo.c socks_gssapi.c socks_sspi.c \
curl_sspi.c slist.c nonblock.c curl_memrchr.c imap.c pop3.c smtp.c \
pingpong.c rtsp.c curl_threads.c warnless.c hmac.c curl_rtmp.c \
openldap.c curl_gethostname.c gopher.c idn_win32.c \
http_proxy.c non-ascii.c asyn-ares.c asyn-thread.c curl_gssapi.c \
http_ntlm.c curl_ntlm_wb.c curl_ntlm_core.c curl_sasl.c rand.c \
curl_multibyte.c hostcheck.c conncache.c dotdot.c \
x509asn1.c http2.c smb.c curl_endian.c curl_des.c system_win32.c \
mime.c sha256.c setopt.c curl_path.c curl_ctype.c curl_range.c psl.c \
doh.c urlapi.c curl_get_line.c altsvc.c
LIB_HFILES = arpa_telnet.h netrc.h file.h timeval.h hostip.h progress.h \
formdata.h cookie.h http.h sendf.h ftp.h url.h dict.h if2ip.h \
speedcheck.h urldata.h curl_ldap.h escape.h telnet.h getinfo.h \
strcase.h curl_sec.h memdebug.h http_chunks.h curl_fnmatch.h \
wildcard.h fileinfo.h ftplistparser.h strtok.h connect.h llist.h \
hash.h content_encoding.h share.h curl_md4.h curl_md5.h http_digest.h \
http_negotiate.h inet_pton.h amigaos.h strtoofft.h strerror.h \
inet_ntop.h curlx.h curl_memory.h curl_setup.h transfer.h select.h \
easyif.h multiif.h parsedate.h tftp.h sockaddr.h splay.h strdup.h \
socks.h ssh.h curl_base64.h curl_addrinfo.h curl_sspi.h \
slist.h nonblock.h curl_memrchr.h imap.h pop3.h smtp.h pingpong.h \
rtsp.h curl_threads.h warnless.h curl_hmac.h curl_rtmp.h \
curl_gethostname.h gopher.h http_proxy.h non-ascii.h asyn.h \
http_ntlm.h curl_gssapi.h curl_ntlm_wb.h curl_ntlm_core.h \
curl_sasl.h curl_multibyte.h hostcheck.h conncache.h \
curl_setup_once.h multihandle.h setup-vms.h dotdot.h \
x509asn1.h http2.h sigpipe.h smb.h curl_endian.h curl_des.h \
curl_printf.h system_win32.h rand.h mime.h curl_sha256.h setopt.h \
curl_path.h curl_ctype.h curl_range.h psl.h doh.h urlapi-int.h \
curl_get_line.h altsvc.h
LIB_RCFILES = libcurl.rc
CSOURCES = $(LIB_CFILES) $(LIB_VAUTH_CFILES) $(LIB_VTLS_CFILES)
HHEADERS = $(LIB_HFILES) $(LIB_VAUTH_HFILES) $(LIB_VTLS_HFILES)

569
dependencies/cmcurl/lib/altsvc.c vendored Normal file
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* The Alt-Svc: header is defined in RFC 7838:
* https://tools.ietf.org/html/rfc7838
*/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && defined(USE_ALTSVC)
#include <curl/curl.h>
#include "urldata.h"
#include "altsvc.h"
#include "curl_get_line.h"
#include "strcase.h"
#include "parsedate.h"
#include "sendf.h"
#include "warnless.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define MAX_ALTSVC_LINE 4095
#define MAX_ALTSVC_DATELENSTR "64"
#define MAX_ALTSVC_DATELEN 64
#define MAX_ALTSVC_HOSTLENSTR "512"
#define MAX_ALTSVC_HOSTLEN 512
#define MAX_ALTSVC_ALPNLENSTR "10"
#define MAX_ALTSVC_ALPNLEN 10
static enum alpnid alpn2alpnid(char *name)
{
if(strcasecompare(name, "h1"))
return ALPN_h1;
if(strcasecompare(name, "h2"))
return ALPN_h2;
if(strcasecompare(name, "h2c"))
return ALPN_h2c;
if(strcasecompare(name, "h3"))
return ALPN_h3;
return ALPN_none; /* unknown, probably rubbish input */
}
/* Given the ALPN ID, return the name */
const char *Curl_alpnid2str(enum alpnid id)
{
switch(id) {
case ALPN_h1:
return "h1";
case ALPN_h2:
return "h2";
case ALPN_h2c:
return "h2c";
case ALPN_h3:
return "h3";
default:
return ""; /* bad */
}
}
static void altsvc_free(struct altsvc *as)
{
free(as->srchost);
free(as->dsthost);
free(as);
}
static struct altsvc *altsvc_createid(const char *srchost,
const char *dsthost,
enum alpnid srcalpnid,
enum alpnid dstalpnid,
unsigned int srcport,
unsigned int dstport)
{
struct altsvc *as = calloc(sizeof(struct altsvc), 1);
if(!as)
return NULL;
as->srchost = strdup(srchost);
if(!as->srchost)
goto error;
as->dsthost = strdup(dsthost);
if(!as->dsthost)
goto error;
as->srcalpnid = srcalpnid;
as->dstalpnid = dstalpnid;
as->srcport = curlx_ultous(srcport);
as->dstport = curlx_ultous(dstport);
return as;
error:
altsvc_free(as);
return NULL;
}
static struct altsvc *altsvc_create(char *srchost,
char *dsthost,
char *srcalpn,
char *dstalpn,
unsigned int srcport,
unsigned int dstport)
{
enum alpnid dstalpnid = alpn2alpnid(dstalpn);
enum alpnid srcalpnid = alpn2alpnid(srcalpn);
if(!srcalpnid || !dstalpnid)
return NULL;
return altsvc_createid(srchost, dsthost, srcalpnid, dstalpnid,
srcport, dstport);
}
/* only returns SERIOUS errors */
static CURLcode altsvc_add(struct altsvcinfo *asi, char *line)
{
/* Example line:
h2 example.com 443 h3 shiny.example.com 8443 "20191231 10:00:00" 1
*/
char srchost[MAX_ALTSVC_HOSTLEN + 1];
char dsthost[MAX_ALTSVC_HOSTLEN + 1];
char srcalpn[MAX_ALTSVC_ALPNLEN + 1];
char dstalpn[MAX_ALTSVC_ALPNLEN + 1];
char date[MAX_ALTSVC_DATELEN + 1];
unsigned int srcport;
unsigned int dstport;
unsigned int prio;
unsigned int persist;
int rc;
rc = sscanf(line,
"%" MAX_ALTSVC_ALPNLENSTR "s %" MAX_ALTSVC_HOSTLENSTR "s %u "
"%" MAX_ALTSVC_ALPNLENSTR "s %" MAX_ALTSVC_HOSTLENSTR "s %u "
"\"%" MAX_ALTSVC_DATELENSTR "[^\"]\" %u %u",
srcalpn, srchost, &srcport,
dstalpn, dsthost, &dstport,
date, &persist, &prio);
if(9 == rc) {
struct altsvc *as;
time_t expires = curl_getdate(date, NULL);
as = altsvc_create(srchost, dsthost, srcalpn, dstalpn, srcport, dstport);
if(as) {
as->expires = expires;
as->prio = prio;
as->persist = persist ? 1 : 0;
Curl_llist_insert_next(&asi->list, asi->list.tail, as, &as->node);
asi->num++; /* one more entry */
}
}
return CURLE_OK;
}
/*
* Load alt-svc entries from the given file. The text based line-oriented file
* format is documented here:
* https://github.com/curl/curl/wiki/QUIC-implementation
*
* This function only returns error on major problems that prevents alt-svc
* handling to work completely. It will ignore individual syntactical errors
* etc.
*/
static CURLcode altsvc_load(struct altsvcinfo *asi, const char *file)
{
CURLcode result = CURLE_OK;
char *line = NULL;
FILE *fp = fopen(file, FOPEN_READTEXT);
if(fp) {
line = malloc(MAX_ALTSVC_LINE);
if(!line)
goto fail;
while(Curl_get_line(line, MAX_ALTSVC_LINE, fp)) {
char *lineptr = line;
while(*lineptr && ISBLANK(*lineptr))
lineptr++;
if(*lineptr == '#')
/* skip commented lines */
continue;
altsvc_add(asi, lineptr);
}
free(line); /* free the line buffer */
fclose(fp);
}
return result;
fail:
free(line);
fclose(fp);
return CURLE_OUT_OF_MEMORY;
}
/*
* Write this single altsvc entry to a single output line
*/
static CURLcode altsvc_out(struct altsvc *as, FILE *fp)
{
struct tm stamp;
CURLcode result = Curl_gmtime(as->expires, &stamp);
if(result)
return result;
fprintf(fp,
"%s %s %u "
"%s %s %u "
"\"%d%02d%02d "
"%02d:%02d:%02d\" "
"%u %d\n",
Curl_alpnid2str(as->srcalpnid), as->srchost, as->srcport,
Curl_alpnid2str(as->dstalpnid), as->dsthost, as->dstport,
stamp.tm_year + 1900, stamp.tm_mon + 1, stamp.tm_mday,
stamp.tm_hour, stamp.tm_min, stamp.tm_sec,
as->persist, as->prio);
return CURLE_OK;
}
/* ---- library-wide functions below ---- */
/*
* Curl_altsvc_init() creates a new altsvc cache.
* It returns the new instance or NULL if something goes wrong.
*/
struct altsvcinfo *Curl_altsvc_init(void)
{
struct altsvcinfo *asi = calloc(sizeof(struct altsvcinfo), 1);
if(!asi)
return NULL;
Curl_llist_init(&asi->list, NULL);
/* set default behavior */
asi->flags = CURLALTSVC_H1
#ifdef USE_NGHTTP2
| CURLALTSVC_H2
#endif
#ifdef USE_HTTP3
| CURLALTSVC_H3
#endif
;
return asi;
}
/*
* Curl_altsvc_load() loads alt-svc from file.
*/
CURLcode Curl_altsvc_load(struct altsvcinfo *asi, const char *file)
{
CURLcode result;
DEBUGASSERT(asi);
result = altsvc_load(asi, file);
return result;
}
/*
* Curl_altsvc_ctrl() passes on the external bitmask.
*/
CURLcode Curl_altsvc_ctrl(struct altsvcinfo *asi, const long ctrl)
{
DEBUGASSERT(asi);
if(!ctrl)
/* unexpected */
return CURLE_BAD_FUNCTION_ARGUMENT;
asi->flags = ctrl;
return CURLE_OK;
}
/*
* Curl_altsvc_cleanup() frees an altsvc cache instance and all associated
* resources.
*/
void Curl_altsvc_cleanup(struct altsvcinfo *altsvc)
{
struct curl_llist_element *e;
struct curl_llist_element *n;
if(altsvc) {
for(e = altsvc->list.head; e; e = n) {
struct altsvc *as = e->ptr;
n = e->next;
altsvc_free(as);
}
free(altsvc);
}
}
/*
* Curl_altsvc_save() writes the altsvc cache to a file.
*/
CURLcode Curl_altsvc_save(struct altsvcinfo *altsvc, const char *file)
{
struct curl_llist_element *e;
struct curl_llist_element *n;
CURLcode result = CURLE_OK;
FILE *out;
if(!altsvc)
/* no cache activated */
return CURLE_OK;
if((altsvc->flags & CURLALTSVC_READONLYFILE) || !file[0])
/* marked as read-only or zero length file name */
return CURLE_OK;
out = fopen(file, FOPEN_WRITETEXT);
if(!out)
return CURLE_WRITE_ERROR;
fputs("# Your alt-svc cache. https://curl.haxx.se/docs/alt-svc.html\n"
"# This file was generated by libcurl! Edit at your own risk.\n",
out);
for(e = altsvc->list.head; e; e = n) {
struct altsvc *as = e->ptr;
n = e->next;
result = altsvc_out(as, out);
if(result)
break;
}
fclose(out);
return result;
}
static CURLcode getalnum(const char **ptr, char *alpnbuf, size_t buflen)
{
size_t len;
const char *protop;
const char *p = *ptr;
while(*p && ISBLANK(*p))
p++;
protop = p;
while(*p && ISALNUM(*p))
p++;
len = p - protop;
if(!len || (len >= buflen))
return CURLE_BAD_FUNCTION_ARGUMENT;
memcpy(alpnbuf, protop, len);
alpnbuf[len] = 0;
*ptr = p;
return CURLE_OK;
}
/* altsvc_flush() removes all alternatives for this source origin from the
list */
static void altsvc_flush(struct altsvcinfo *asi, enum alpnid srcalpnid,
const char *srchost, unsigned short srcport)
{
struct curl_llist_element *e;
struct curl_llist_element *n;
for(e = asi->list.head; e; e = n) {
struct altsvc *as = e->ptr;
n = e->next;
if((srcalpnid == as->srcalpnid) &&
(srcport == as->srcport) &&
strcasecompare(srchost, as->srchost)) {
Curl_llist_remove(&asi->list, e, NULL);
altsvc_free(as);
asi->num--;
}
}
}
#ifdef DEBUGBUILD
/* to play well with debug builds, we can *set* a fixed time this will
return */
static time_t debugtime(void *unused)
{
char *timestr = getenv("CURL_TIME");
(void)unused;
if(timestr) {
unsigned long val = strtol(timestr, NULL, 10);
return (time_t)val;
}
return time(NULL);
}
#define time(x) debugtime(x)
#endif
/*
* Curl_altsvc_parse() takes an incoming alt-svc response header and stores
* the data correctly in the cache.
*
* 'value' points to the header *value*. That's contents to the right of the
* header name.
*/
CURLcode Curl_altsvc_parse(struct Curl_easy *data,
struct altsvcinfo *asi, const char *value,
enum alpnid srcalpnid, const char *srchost,
unsigned short srcport)
{
const char *p = value;
size_t len;
enum alpnid dstalpnid = srcalpnid; /* the same by default */
char namebuf[MAX_ALTSVC_HOSTLEN] = "";
char alpnbuf[MAX_ALTSVC_ALPNLEN] = "";
struct altsvc *as;
unsigned short dstport = srcport; /* the same by default */
const char *semip;
time_t maxage = 24 * 3600; /* default is 24 hours */
bool persist = FALSE;
CURLcode result = getalnum(&p, alpnbuf, sizeof(alpnbuf));
if(result)
return result;
DEBUGASSERT(asi);
/* Flush all cached alternatives for this source origin, if any */
altsvc_flush(asi, srcalpnid, srchost, srcport);
/* "clear" is a magic keyword */
if(strcasecompare(alpnbuf, "clear")) {
return CURLE_OK;
}
/* The 'ma' and 'persist' flags are annoyingly meant for all alternatives
but are set after the list on the line. Scan for the semicolons and get
those fields first! */
semip = p;
do {
semip = strchr(semip, ';');
if(semip) {
char option[32];
unsigned long num;
char *end_ptr;
semip++; /* pass the semicolon */
result = getalnum(&semip, option, sizeof(option));
if(result)
break;
while(*semip && ISBLANK(*semip))
semip++;
if(*semip != '=')
continue;
semip++;
num = strtoul(semip, &end_ptr, 10);
if(num < ULONG_MAX) {
if(strcasecompare("ma", option))
maxage = num;
else if(strcasecompare("persist", option) && (num == 1))
persist = TRUE;
}
semip = end_ptr;
}
} while(semip);
do {
if(*p == '=') {
/* [protocol]="[host][:port]" */
dstalpnid = alpn2alpnid(alpnbuf);
if(!dstalpnid) {
infof(data, "Unknown alt-svc protocol \"%s\", ignoring...\n", alpnbuf);
return CURLE_OK;
}
p++;
if(*p == '\"') {
const char *dsthost;
p++;
if(*p != ':') {
/* host name starts here */
const char *hostp = p;
while(*p && (ISALNUM(*p) || (*p == '.') || (*p == '-')))
p++;
len = p - hostp;
if(!len || (len >= MAX_ALTSVC_HOSTLEN))
return CURLE_BAD_FUNCTION_ARGUMENT;
memcpy(namebuf, hostp, len);
namebuf[len] = 0;
dsthost = namebuf;
}
else {
/* no destination name, use source host */
dsthost = srchost;
}
if(*p == ':') {
/* a port number */
char *end_ptr;
unsigned long port = strtoul(++p, &end_ptr, 10);
if(port > USHRT_MAX || end_ptr == p || *end_ptr != '\"') {
infof(data, "Unknown alt-svc port number, ignoring...\n");
return CURLE_OK;
}
p = end_ptr;
dstport = curlx_ultous(port);
}
if(*p++ != '\"')
return CURLE_BAD_FUNCTION_ARGUMENT;
as = altsvc_createid(srchost, dsthost,
srcalpnid, dstalpnid,
srcport, dstport);
if(as) {
/* The expires time also needs to take the Age: value (if any) into
account. [See RFC 7838 section 3.1] */
as->expires = maxage + time(NULL);
as->persist = persist;
Curl_llist_insert_next(&asi->list, asi->list.tail, as, &as->node);
asi->num++; /* one more entry */
infof(data, "Added alt-svc: %s:%d over %s\n", dsthost, dstport,
Curl_alpnid2str(dstalpnid));
}
}
/* after the double quote there can be a comma if there's another
string or a semicolon if no more */
if(*p == ',') {
/* comma means another alternative is presented */
p++;
result = getalnum(&p, alpnbuf, sizeof(alpnbuf));
if(result)
/* failed to parse, but since we already did at least one host we
return OK */
return CURLE_OK;
}
}
} while(*p && (*p != ';') && (*p != '\n') && (*p != '\r'));
return CURLE_OK;
}
/*
* Return TRUE on a match
*/
bool Curl_altsvc_lookup(struct altsvcinfo *asi,
enum alpnid srcalpnid, const char *srchost,
int srcport,
enum alpnid *dstalpnid, const char **dsthost,
int *dstport)
{
struct curl_llist_element *e;
struct curl_llist_element *n;
time_t now = time(NULL);
DEBUGASSERT(asi);
DEBUGASSERT(srchost);
DEBUGASSERT(dsthost);
for(e = asi->list.head; e; e = n) {
struct altsvc *as = e->ptr;
n = e->next;
if(as->expires < now) {
/* an expired entry, remove */
altsvc_free(as);
continue;
}
if((as->srcalpnid == srcalpnid) &&
strcasecompare(as->srchost, srchost) &&
as->srcport == srcport) {
/* match */
*dstalpnid = as->dstalpnid;
*dsthost = as->dsthost;
*dstport = as->dstport;
return TRUE;
}
}
return FALSE;
}
#endif /* CURL_DISABLE_HTTP || USE_ALTSVC */

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#ifndef HEADER_CURL_ALTSVC_H
#define HEADER_CURL_ALTSVC_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && defined(USE_ALTSVC)
#include <curl/curl.h>
#include "llist.h"
enum alpnid {
ALPN_none,
ALPN_h1,
ALPN_h2,
ALPN_h2c,
ALPN_h3
};
struct altsvc {
char *srchost;
char *dsthost;
unsigned short srcport;
unsigned short dstport;
enum alpnid srcalpnid;
enum alpnid dstalpnid;
time_t expires;
bool persist;
int prio;
struct curl_llist_element node;
};
struct altsvcinfo {
char *filename;
struct curl_llist list; /* list of entries */
size_t num; /* number of alt-svc entries */
long flags; /* the publicly set bitmask */
};
const char *Curl_alpnid2str(enum alpnid id);
struct altsvcinfo *Curl_altsvc_init(void);
CURLcode Curl_altsvc_load(struct altsvcinfo *asi, const char *file);
CURLcode Curl_altsvc_save(struct altsvcinfo *asi, const char *file);
CURLcode Curl_altsvc_ctrl(struct altsvcinfo *asi, const long ctrl);
void Curl_altsvc_cleanup(struct altsvcinfo *altsvc);
CURLcode Curl_altsvc_parse(struct Curl_easy *data,
struct altsvcinfo *altsvc, const char *value,
enum alpnid srcalpn, const char *srchost,
unsigned short srcport);
bool Curl_altsvc_lookup(struct altsvcinfo *asi,
enum alpnid srcalpnid, const char *srchost,
int srcport,
enum alpnid *dstalpnid, const char **dsthost,
int *dstport);
#else
/* disabled */
#define Curl_altsvc_save(a,b)
#endif /* CURL_DISABLE_HTTP || USE_ALTSVC */
#endif /* HEADER_CURL_ALTSVC_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef __AMIGA__
# include "amigaos.h"
# if defined(HAVE_PROTO_BSDSOCKET_H) && !defined(USE_AMISSL)
# include <amitcp/socketbasetags.h>
# endif
# ifdef __libnix__
# include <stabs.h>
# endif
#endif
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
#ifdef __AMIGA__
#if defined(HAVE_PROTO_BSDSOCKET_H) && !defined(USE_AMISSL)
struct Library *SocketBase = NULL;
extern int errno, h_errno;
#ifdef __libnix__
void __request(const char *msg);
#else
# define __request(msg) Printf(msg "\n\a")
#endif
void Curl_amiga_cleanup()
{
if(SocketBase) {
CloseLibrary(SocketBase);
SocketBase = NULL;
}
}
bool Curl_amiga_init()
{
if(!SocketBase)
SocketBase = OpenLibrary("bsdsocket.library", 4);
if(!SocketBase) {
__request("No TCP/IP Stack running!");
return FALSE;
}
if(SocketBaseTags(SBTM_SETVAL(SBTC_ERRNOPTR(sizeof(errno))), (ULONG) &errno,
SBTM_SETVAL(SBTC_LOGTAGPTR), (ULONG) "curl",
TAG_DONE)) {
__request("SocketBaseTags ERROR");
return FALSE;
}
#ifndef __libnix__
atexit(Curl_amiga_cleanup);
#endif
return TRUE;
}
#ifdef __libnix__
ADD2EXIT(Curl_amiga_cleanup, -50);
#endif
#endif /* HAVE_PROTO_BSDSOCKET_H */
#ifdef USE_AMISSL
void Curl_amiga_X509_free(X509 *a)
{
X509_free(a);
}
#endif /* USE_AMISSL */
#endif /* __AMIGA__ */

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#ifndef HEADER_CURL_AMIGAOS_H
#define HEADER_CURL_AMIGAOS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(__AMIGA__) && defined(HAVE_BSDSOCKET_H) && !defined(USE_AMISSL)
bool Curl_amiga_init();
void Curl_amiga_cleanup();
#else
#define Curl_amiga_init() 1
#define Curl_amiga_cleanup() Curl_nop_stmt
#endif
#ifdef USE_AMISSL
#include <openssl/x509v3.h>
void Curl_amiga_X509_free(X509 *a);
#endif /* USE_AMISSL */
#endif /* HEADER_CURL_AMIGAOS_H */

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#ifndef HEADER_CURL_ARPA_TELNET_H
#define HEADER_CURL_ARPA_TELNET_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_TELNET
/*
* Telnet option defines. Add more here if in need.
*/
#define CURL_TELOPT_BINARY 0 /* binary 8bit data */
#define CURL_TELOPT_ECHO 1 /* just echo! */
#define CURL_TELOPT_SGA 3 /* Suppress Go Ahead */
#define CURL_TELOPT_EXOPL 255 /* EXtended OPtions List */
#define CURL_TELOPT_TTYPE 24 /* Terminal TYPE */
#define CURL_TELOPT_NAWS 31 /* Negotiate About Window Size */
#define CURL_TELOPT_XDISPLOC 35 /* X DISPlay LOCation */
#define CURL_TELOPT_NEW_ENVIRON 39 /* NEW ENVIRONment variables */
#define CURL_NEW_ENV_VAR 0
#define CURL_NEW_ENV_VALUE 1
#ifndef CURL_DISABLE_VERBOSE_STRINGS
/*
* The telnet options represented as strings
*/
static const char * const telnetoptions[]=
{
"BINARY", "ECHO", "RCP", "SUPPRESS GO AHEAD",
"NAME", "STATUS", "TIMING MARK", "RCTE",
"NAOL", "NAOP", "NAOCRD", "NAOHTS",
"NAOHTD", "NAOFFD", "NAOVTS", "NAOVTD",
"NAOLFD", "EXTEND ASCII", "LOGOUT", "BYTE MACRO",
"DE TERMINAL", "SUPDUP", "SUPDUP OUTPUT", "SEND LOCATION",
"TERM TYPE", "END OF RECORD", "TACACS UID", "OUTPUT MARKING",
"TTYLOC", "3270 REGIME", "X3 PAD", "NAWS",
"TERM SPEED", "LFLOW", "LINEMODE", "XDISPLOC",
"OLD-ENVIRON", "AUTHENTICATION", "ENCRYPT", "NEW-ENVIRON"
};
#endif
#define CURL_TELOPT_MAXIMUM CURL_TELOPT_NEW_ENVIRON
#define CURL_TELOPT_OK(x) ((x) <= CURL_TELOPT_MAXIMUM)
#define CURL_TELOPT(x) telnetoptions[x]
#define CURL_NTELOPTS 40
/*
* First some defines
*/
#define CURL_xEOF 236 /* End Of File */
#define CURL_SE 240 /* Sub negotiation End */
#define CURL_NOP 241 /* No OPeration */
#define CURL_DM 242 /* Data Mark */
#define CURL_GA 249 /* Go Ahead, reverse the line */
#define CURL_SB 250 /* SuBnegotiation */
#define CURL_WILL 251 /* Our side WILL use this option */
#define CURL_WONT 252 /* Our side WON'T use this option */
#define CURL_DO 253 /* DO use this option! */
#define CURL_DONT 254 /* DON'T use this option! */
#define CURL_IAC 255 /* Interpret As Command */
#ifndef CURL_DISABLE_VERBOSE_STRINGS
/*
* Then those numbers represented as strings:
*/
static const char * const telnetcmds[]=
{
"EOF", "SUSP", "ABORT", "EOR", "SE",
"NOP", "DMARK", "BRK", "IP", "AO",
"AYT", "EC", "EL", "GA", "SB",
"WILL", "WONT", "DO", "DONT", "IAC"
};
#endif
#define CURL_TELCMD_MINIMUM CURL_xEOF /* the first one */
#define CURL_TELCMD_MAXIMUM CURL_IAC /* surprise, 255 is the last one! ;-) */
#define CURL_TELQUAL_IS 0
#define CURL_TELQUAL_SEND 1
#define CURL_TELQUAL_INFO 2
#define CURL_TELQUAL_NAME 3
#define CURL_TELCMD_OK(x) ( ((unsigned int)(x) >= CURL_TELCMD_MINIMUM) && \
((unsigned int)(x) <= CURL_TELCMD_MAXIMUM) )
#define CURL_TELCMD(x) telnetcmds[(x)-CURL_TELCMD_MINIMUM]
#endif /* CURL_DISABLE_TELNET */
#endif /* HEADER_CURL_ARPA_TELNET_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/***********************************************************************
* Only for ares-enabled builds
* And only for functions that fulfill the asynch resolver backend API
* as defined in asyn.h, nothing else belongs in this file!
**********************************************************************/
#ifdef CURLRES_ARES
#include <limits.h>
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
#if (defined(NETWARE) && defined(__NOVELL_LIBC__))
#undef in_addr_t
#define in_addr_t unsigned long
#endif
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "hash.h"
#include "share.h"
#include "strerror.h"
#include "url.h"
#include "multiif.h"
#include "inet_pton.h"
#include "connect.h"
#include "select.h"
#include "progress.h"
# if defined(CURL_STATICLIB) && !defined(CARES_STATICLIB) && \
(defined(WIN32) || defined(__SYMBIAN32__))
# define CARES_STATICLIB
# endif
# include <ares.h>
# include <ares_version.h> /* really old c-ares didn't include this by
itself */
#if ARES_VERSION >= 0x010500
/* c-ares 1.5.0 or later, the callback proto is modified */
#define HAVE_CARES_CALLBACK_TIMEOUTS 1
#endif
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
struct ResolverResults {
int num_pending; /* number of ares_gethostbyname() requests */
Curl_addrinfo *temp_ai; /* intermediary result while fetching c-ares parts */
int last_status;
struct curltime happy_eyeballs_dns_time; /* when this timer started, or 0 */
};
/* How long we are willing to wait for additional parallel responses after
obtaining a "definitive" one.
This is intended to equal the c-ares default timeout. cURL always uses that
default value. Unfortunately, c-ares doesn't expose its default timeout in
its API, but it is officially documented as 5 seconds.
See query_completed_cb() for an explanation of how this is used.
*/
#define HAPPY_EYEBALLS_DNS_TIMEOUT 5000
/*
* Curl_resolver_global_init() - the generic low-level asynchronous name
* resolve API. Called from curl_global_init() to initialize global resolver
* environment. Initializes ares library.
*/
int Curl_resolver_global_init(void)
{
#ifdef CARES_HAVE_ARES_LIBRARY_INIT
if(ares_library_init(ARES_LIB_INIT_ALL)) {
return CURLE_FAILED_INIT;
}
#endif
return CURLE_OK;
}
/*
* Curl_resolver_global_cleanup()
*
* Called from curl_global_cleanup() to destroy global resolver environment.
* Deinitializes ares library.
*/
void Curl_resolver_global_cleanup(void)
{
#ifdef CARES_HAVE_ARES_LIBRARY_CLEANUP
ares_library_cleanup();
#endif
}
static void Curl_ares_sock_state_cb(void *data, ares_socket_t socket_fd,
int readable, int writable)
{
struct Curl_easy *easy = data;
if(!readable && !writable) {
DEBUGASSERT(easy);
Curl_multi_closed(easy, socket_fd);
}
}
/*
* Curl_resolver_init()
*
* Called from curl_easy_init() -> Curl_open() to initialize resolver
* URL-state specific environment ('resolver' member of the UrlState
* structure). Fills the passed pointer by the initialized ares_channel.
*/
CURLcode Curl_resolver_init(struct Curl_easy *easy, void **resolver)
{
int status;
struct ares_options options;
int optmask = ARES_OPT_SOCK_STATE_CB;
options.sock_state_cb = Curl_ares_sock_state_cb;
options.sock_state_cb_data = easy;
status = ares_init_options((ares_channel*)resolver, &options, optmask);
if(status != ARES_SUCCESS) {
if(status == ARES_ENOMEM)
return CURLE_OUT_OF_MEMORY;
else
return CURLE_FAILED_INIT;
}
return CURLE_OK;
/* make sure that all other returns from this function should destroy the
ares channel before returning error! */
}
/*
* Curl_resolver_cleanup()
*
* Called from curl_easy_cleanup() -> Curl_close() to cleanup resolver
* URL-state specific environment ('resolver' member of the UrlState
* structure). Destroys the ares channel.
*/
void Curl_resolver_cleanup(void *resolver)
{
ares_destroy((ares_channel)resolver);
}
/*
* Curl_resolver_duphandle()
*
* Called from curl_easy_duphandle() to duplicate resolver URL-state specific
* environment ('resolver' member of the UrlState structure). Duplicates the
* 'from' ares channel and passes the resulting channel to the 'to' pointer.
*/
CURLcode Curl_resolver_duphandle(struct Curl_easy *easy, void **to, void *from)
{
(void)from;
/*
* it would be better to call ares_dup instead, but right now
* it is not possible to set 'sock_state_cb_data' outside of
* ares_init_options
*/
return Curl_resolver_init(easy, to);
}
static void destroy_async_data(struct Curl_async *async);
/*
* Cancel all possibly still on-going resolves for this connection.
*/
void Curl_resolver_cancel(struct connectdata *conn)
{
if(conn->data && conn->data->state.resolver)
ares_cancel((ares_channel)conn->data->state.resolver);
destroy_async_data(&conn->async);
}
/*
* We're equivalent to Curl_resolver_cancel() for the c-ares resolver. We
* never block.
*/
void Curl_resolver_kill(struct connectdata *conn)
{
/* We don't need to check the resolver state because we can be called safely
at any time and we always do the same thing. */
Curl_resolver_cancel(conn);
}
/*
* destroy_async_data() cleans up async resolver data.
*/
static void destroy_async_data(struct Curl_async *async)
{
free(async->hostname);
if(async->os_specific) {
struct ResolverResults *res = (struct ResolverResults *)async->os_specific;
if(res) {
if(res->temp_ai) {
Curl_freeaddrinfo(res->temp_ai);
res->temp_ai = NULL;
}
free(res);
}
async->os_specific = NULL;
}
async->hostname = NULL;
}
/*
* Curl_resolver_getsock() is called when someone from the outside world
* (using curl_multi_fdset()) wants to get our fd_set setup and we're talking
* with ares. The caller must make sure that this function is only called when
* we have a working ares channel.
*
* Returns: sockets-in-use-bitmap
*/
int Curl_resolver_getsock(struct connectdata *conn,
curl_socket_t *socks,
int numsocks)
{
struct timeval maxtime;
struct timeval timebuf;
struct timeval *timeout;
long milli;
int max = ares_getsock((ares_channel)conn->data->state.resolver,
(ares_socket_t *)socks, numsocks);
maxtime.tv_sec = CURL_TIMEOUT_RESOLVE;
maxtime.tv_usec = 0;
timeout = ares_timeout((ares_channel)conn->data->state.resolver, &maxtime,
&timebuf);
milli = (timeout->tv_sec * 1000) + (timeout->tv_usec/1000);
if(milli == 0)
milli += 10;
Curl_expire(conn->data, milli, EXPIRE_ASYNC_NAME);
return max;
}
/*
* waitperform()
*
* 1) Ask ares what sockets it currently plays with, then
* 2) wait for the timeout period to check for action on ares' sockets.
* 3) tell ares to act on all the sockets marked as "with action"
*
* return number of sockets it worked on
*/
static int waitperform(struct connectdata *conn, int timeout_ms)
{
struct Curl_easy *data = conn->data;
int nfds;
int bitmask;
ares_socket_t socks[ARES_GETSOCK_MAXNUM];
struct pollfd pfd[ARES_GETSOCK_MAXNUM];
int i;
int num = 0;
bitmask = ares_getsock((ares_channel)data->state.resolver, socks,
ARES_GETSOCK_MAXNUM);
for(i = 0; i < ARES_GETSOCK_MAXNUM; i++) {
pfd[i].events = 0;
pfd[i].revents = 0;
if(ARES_GETSOCK_READABLE(bitmask, i)) {
pfd[i].fd = socks[i];
pfd[i].events |= POLLRDNORM|POLLIN;
}
if(ARES_GETSOCK_WRITABLE(bitmask, i)) {
pfd[i].fd = socks[i];
pfd[i].events |= POLLWRNORM|POLLOUT;
}
if(pfd[i].events != 0)
num++;
else
break;
}
if(num)
nfds = Curl_poll(pfd, num, timeout_ms);
else
nfds = 0;
if(!nfds)
/* Call ares_process() unconditonally here, even if we simply timed out
above, as otherwise the ares name resolve won't timeout! */
ares_process_fd((ares_channel)data->state.resolver, ARES_SOCKET_BAD,
ARES_SOCKET_BAD);
else {
/* move through the descriptors and ask for processing on them */
for(i = 0; i < num; i++)
ares_process_fd((ares_channel)data->state.resolver,
(pfd[i].revents & (POLLRDNORM|POLLIN))?
pfd[i].fd:ARES_SOCKET_BAD,
(pfd[i].revents & (POLLWRNORM|POLLOUT))?
pfd[i].fd:ARES_SOCKET_BAD);
}
return nfds;
}
/*
* Curl_resolver_is_resolved() is called repeatedly to check if a previous
* name resolve request has completed. It should also make sure to time-out if
* the operation seems to take too long.
*
* Returns normal CURLcode errors.
*/
CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
struct Curl_dns_entry **dns)
{
struct Curl_easy *data = conn->data;
struct ResolverResults *res = (struct ResolverResults *)
conn->async.os_specific;
CURLcode result = CURLE_OK;
if(dns)
*dns = NULL;
waitperform(conn, 0);
/* Now that we've checked for any last minute results above, see if there are
any responses still pending when the EXPIRE_HAPPY_EYEBALLS_DNS timer
expires. */
if(res
&& res->num_pending
/* This is only set to non-zero if the timer was started. */
&& (res->happy_eyeballs_dns_time.tv_sec
|| res->happy_eyeballs_dns_time.tv_usec)
&& (Curl_timediff(Curl_now(), res->happy_eyeballs_dns_time)
>= HAPPY_EYEBALLS_DNS_TIMEOUT)) {
/* Remember that the EXPIRE_HAPPY_EYEBALLS_DNS timer is no longer
running. */
memset(
&res->happy_eyeballs_dns_time, 0, sizeof(res->happy_eyeballs_dns_time));
/* Cancel the raw c-ares request, which will fire query_completed_cb() with
ARES_ECANCELLED synchronously for all pending responses. This will
leave us with res->num_pending == 0, which is perfect for the next
block. */
ares_cancel((ares_channel)data->state.resolver);
DEBUGASSERT(res->num_pending == 0);
}
if(res && !res->num_pending) {
if(dns) {
(void)Curl_addrinfo_callback(conn, res->last_status, res->temp_ai);
/* temp_ai ownership is moved to the connection, so we need not free-up
them */
res->temp_ai = NULL;
}
if(!conn->async.dns) {
failf(data, "Could not resolve: %s (%s)",
conn->async.hostname, ares_strerror(conn->async.status));
result = conn->bits.proxy?CURLE_COULDNT_RESOLVE_PROXY:
CURLE_COULDNT_RESOLVE_HOST;
}
else if(dns)
*dns = conn->async.dns;
destroy_async_data(&conn->async);
}
return result;
}
/*
* Curl_resolver_wait_resolv()
*
* Waits for a resolve to finish. This function should be avoided since using
* this risk getting the multi interface to "hang".
*
* If 'entry' is non-NULL, make it point to the resolved dns entry
*
* Returns CURLE_COULDNT_RESOLVE_HOST if the host was not resolved,
* CURLE_OPERATION_TIMEDOUT if a time-out occurred, or other errors.
*/
CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
struct Curl_dns_entry **entry)
{
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
timediff_t timeout;
struct curltime now = Curl_now();
struct Curl_dns_entry *temp_entry;
if(entry)
*entry = NULL; /* clear on entry */
timeout = Curl_timeleft(data, &now, TRUE);
if(timeout < 0) {
/* already expired! */
connclose(conn, "Timed out before name resolve started");
return CURLE_OPERATION_TIMEDOUT;
}
if(!timeout)
timeout = CURL_TIMEOUT_RESOLVE * 1000; /* default name resolve timeout */
/* Wait for the name resolve query to complete. */
while(!result) {
struct timeval *tvp, tv, store;
int itimeout;
int timeout_ms;
itimeout = (timeout > (long)INT_MAX) ? INT_MAX : (int)timeout;
store.tv_sec = itimeout/1000;
store.tv_usec = (itimeout%1000)*1000;
tvp = ares_timeout((ares_channel)data->state.resolver, &store, &tv);
/* use the timeout period ares returned to us above if less than one
second is left, otherwise just use 1000ms to make sure the progress
callback gets called frequent enough */
if(!tvp->tv_sec)
timeout_ms = (int)(tvp->tv_usec/1000);
else
timeout_ms = 1000;
waitperform(conn, timeout_ms);
result = Curl_resolver_is_resolved(conn, entry?&temp_entry:NULL);
if(result || conn->async.done)
break;
if(Curl_pgrsUpdate(conn))
result = CURLE_ABORTED_BY_CALLBACK;
else {
struct curltime now2 = Curl_now();
timediff_t timediff = Curl_timediff(now2, now); /* spent time */
if(timediff <= 0)
timeout -= 1; /* always deduct at least 1 */
else if(timediff > timeout)
timeout = -1;
else
timeout -= (long)timediff;
now = now2; /* for next loop */
}
if(timeout < 0)
result = CURLE_OPERATION_TIMEDOUT;
}
if(result)
/* failure, so we cancel the ares operation */
ares_cancel((ares_channel)data->state.resolver);
/* Operation complete, if the lookup was successful we now have the entry
in the cache. */
if(entry)
*entry = conn->async.dns;
if(result)
/* close the connection, since we can't return failure here without
cleaning up this connection properly. */
connclose(conn, "c-ares resolve failed");
return result;
}
/* Connects results to the list */
static void compound_results(struct ResolverResults *res,
Curl_addrinfo *ai)
{
Curl_addrinfo *ai_tail;
if(!ai)
return;
ai_tail = ai;
while(ai_tail->ai_next)
ai_tail = ai_tail->ai_next;
/* Add the new results to the list of old results. */
ai_tail->ai_next = res->temp_ai;
res->temp_ai = ai;
}
/*
* ares_query_completed_cb() is the callback that ares will call when
* the host query initiated by ares_gethostbyname() from Curl_getaddrinfo(),
* when using ares, is completed either successfully or with failure.
*/
static void query_completed_cb(void *arg, /* (struct connectdata *) */
int status,
#ifdef HAVE_CARES_CALLBACK_TIMEOUTS
int timeouts,
#endif
struct hostent *hostent)
{
struct connectdata *conn = (struct connectdata *)arg;
struct ResolverResults *res;
#ifdef HAVE_CARES_CALLBACK_TIMEOUTS
(void)timeouts; /* ignored */
#endif
if(ARES_EDESTRUCTION == status)
/* when this ares handle is getting destroyed, the 'arg' pointer may not
be valid so only defer it when we know the 'status' says its fine! */
return;
res = (struct ResolverResults *)conn->async.os_specific;
if(res) {
res->num_pending--;
if(CURL_ASYNC_SUCCESS == status) {
Curl_addrinfo *ai = Curl_he2ai(hostent, conn->async.port);
if(ai) {
compound_results(res, ai);
}
}
/* A successful result overwrites any previous error */
if(res->last_status != ARES_SUCCESS)
res->last_status = status;
/* If there are responses still pending, we presume they must be the
complementary IPv4 or IPv6 lookups that we started in parallel in
Curl_resolver_getaddrinfo() (for Happy Eyeballs). If we've got a
"definitive" response from one of a set of parallel queries, we need to
think about how long we're willing to wait for more responses. */
if(res->num_pending
/* Only these c-ares status values count as "definitive" for these
purposes. For example, ARES_ENODATA is what we expect when there is
no IPv6 entry for a domain name, and that's not a reason to get more
aggressive in our timeouts for the other response. Other errors are
either a result of bad input (which should affect all parallel
requests), local or network conditions, non-definitive server
responses, or us cancelling the request. */
&& (status == ARES_SUCCESS || status == ARES_ENOTFOUND)) {
/* Right now, there can only be up to two parallel queries, so don't
bother handling any other cases. */
DEBUGASSERT(res->num_pending == 1);
/* It's possible that one of these parallel queries could succeed
quickly, but the other could always fail or timeout (when we're
talking to a pool of DNS servers that can only successfully resolve
IPv4 address, for example).
It's also possible that the other request could always just take
longer because it needs more time or only the second DNS server can
fulfill it successfully. But, to align with the philosophy of Happy
Eyeballs, we don't want to wait _too_ long or users will think
requests are slow when IPv6 lookups don't actually work (but IPv4 ones
do).
So, now that we have a usable answer (some IPv4 addresses, some IPv6
addresses, or "no such domain"), we start a timeout for the remaining
pending responses. Even though it is typical that this resolved
request came back quickly, that needn't be the case. It might be that
this completing request didn't get a result from the first DNS server
or even the first round of the whole DNS server pool. So it could
already be quite some time after we issued the DNS queries in the
first place. Without modifying c-ares, we can't know exactly where in
its retry cycle we are. We could guess based on how much time has
gone by, but it doesn't really matter. Happy Eyeballs tells us that,
given usable information in hand, we simply don't want to wait "too
much longer" after we get a result.
We simply wait an additional amount of time equal to the default
c-ares query timeout. That is enough time for a typical parallel
response to arrive without being "too long". Even on a network
where one of the two types of queries is failing or timing out
constantly, this will usually mean we wait a total of the default
c-ares timeout (5 seconds) plus the round trip time for the successful
request, which seems bearable. The downside is that c-ares might race
with us to issue one more retry just before we give up, but it seems
better to "waste" that request instead of trying to guess the perfect
timeout to prevent it. After all, we don't even know where in the
c-ares retry cycle each request is.
*/
res->happy_eyeballs_dns_time = Curl_now();
Curl_expire(
conn->data, HAPPY_EYEBALLS_DNS_TIMEOUT, EXPIRE_HAPPY_EYEBALLS_DNS);
}
}
}
/*
* Curl_resolver_getaddrinfo() - when using ares
*
* Returns name information about the given hostname and port number. If
* successful, the 'hostent' is returned and the forth argument will point to
* memory we need to free after use. That memory *MUST* be freed with
* Curl_freeaddrinfo(), nothing else.
*/
Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
char *bufp;
struct Curl_easy *data = conn->data;
struct in_addr in;
int family = PF_INET;
#ifdef ENABLE_IPV6 /* CURLRES_IPV6 */
struct in6_addr in6;
#endif /* CURLRES_IPV6 */
*waitp = 0; /* default to synchronous response */
/* First check if this is an IPv4 address string */
if(Curl_inet_pton(AF_INET, hostname, &in) > 0) {
/* This is a dotted IP address 123.123.123.123-style */
return Curl_ip2addr(AF_INET, &in, hostname, port);
}
#ifdef ENABLE_IPV6 /* CURLRES_IPV6 */
/* Otherwise, check if this is an IPv6 address string */
if(Curl_inet_pton (AF_INET6, hostname, &in6) > 0)
/* This must be an IPv6 address literal. */
return Curl_ip2addr(AF_INET6, &in6, hostname, port);
switch(conn->ip_version) {
default:
#if ARES_VERSION >= 0x010601
family = PF_UNSPEC; /* supported by c-ares since 1.6.1, so for older
c-ares versions this just falls through and defaults
to PF_INET */
break;
#endif
case CURL_IPRESOLVE_V4:
family = PF_INET;
break;
case CURL_IPRESOLVE_V6:
family = PF_INET6;
break;
}
#endif /* CURLRES_IPV6 */
bufp = strdup(hostname);
if(bufp) {
struct ResolverResults *res = NULL;
free(conn->async.hostname);
conn->async.hostname = bufp;
conn->async.port = port;
conn->async.done = FALSE; /* not done */
conn->async.status = 0; /* clear */
conn->async.dns = NULL; /* clear */
res = calloc(sizeof(struct ResolverResults), 1);
if(!res) {
free(conn->async.hostname);
conn->async.hostname = NULL;
return NULL;
}
conn->async.os_specific = res;
/* initial status - failed */
res->last_status = ARES_ENOTFOUND;
#ifdef ENABLE_IPV6 /* CURLRES_IPV6 */
if(family == PF_UNSPEC) {
if(Curl_ipv6works()) {
res->num_pending = 2;
/* areschannel is already setup in the Curl_open() function */
ares_gethostbyname((ares_channel)data->state.resolver, hostname,
PF_INET, query_completed_cb, conn);
ares_gethostbyname((ares_channel)data->state.resolver, hostname,
PF_INET6, query_completed_cb, conn);
}
else {
res->num_pending = 1;
/* areschannel is already setup in the Curl_open() function */
ares_gethostbyname((ares_channel)data->state.resolver, hostname,
PF_INET, query_completed_cb, conn);
}
}
else
#endif /* CURLRES_IPV6 */
{
res->num_pending = 1;
/* areschannel is already setup in the Curl_open() function */
ares_gethostbyname((ares_channel)data->state.resolver, hostname, family,
query_completed_cb, conn);
}
*waitp = 1; /* expect asynchronous response */
}
return NULL; /* no struct yet */
}
CURLcode Curl_set_dns_servers(struct Curl_easy *data,
char *servers)
{
CURLcode result = CURLE_NOT_BUILT_IN;
int ares_result;
/* If server is NULL or empty, this would purge all DNS servers
* from ares library, which will cause any and all queries to fail.
* So, just return OK if none are configured and don't actually make
* any changes to c-ares. This lets c-ares use it's defaults, which
* it gets from the OS (for instance from /etc/resolv.conf on Linux).
*/
if(!(servers && servers[0]))
return CURLE_OK;
#if (ARES_VERSION >= 0x010704)
ares_result = ares_set_servers_csv(data->state.resolver, servers);
switch(ares_result) {
case ARES_SUCCESS:
result = CURLE_OK;
break;
case ARES_ENOMEM:
result = CURLE_OUT_OF_MEMORY;
break;
case ARES_ENOTINITIALIZED:
case ARES_ENODATA:
case ARES_EBADSTR:
default:
result = CURLE_BAD_FUNCTION_ARGUMENT;
break;
}
#else /* too old c-ares version! */
(void)data;
(void)(ares_result);
#endif
return result;
}
CURLcode Curl_set_dns_interface(struct Curl_easy *data,
const char *interf)
{
#if (ARES_VERSION >= 0x010704)
if(!interf)
interf = "";
ares_set_local_dev((ares_channel)data->state.resolver, interf);
return CURLE_OK;
#else /* c-ares version too old! */
(void)data;
(void)interf;
return CURLE_NOT_BUILT_IN;
#endif
}
CURLcode Curl_set_dns_local_ip4(struct Curl_easy *data,
const char *local_ip4)
{
#if (ARES_VERSION >= 0x010704)
struct in_addr a4;
if((!local_ip4) || (local_ip4[0] == 0)) {
a4.s_addr = 0; /* disabled: do not bind to a specific address */
}
else {
if(Curl_inet_pton(AF_INET, local_ip4, &a4) != 1) {
return CURLE_BAD_FUNCTION_ARGUMENT;
}
}
ares_set_local_ip4((ares_channel)data->state.resolver, ntohl(a4.s_addr));
return CURLE_OK;
#else /* c-ares version too old! */
(void)data;
(void)local_ip4;
return CURLE_NOT_BUILT_IN;
#endif
}
CURLcode Curl_set_dns_local_ip6(struct Curl_easy *data,
const char *local_ip6)
{
#if (ARES_VERSION >= 0x010704) && defined(ENABLE_IPV6)
unsigned char a6[INET6_ADDRSTRLEN];
if((!local_ip6) || (local_ip6[0] == 0)) {
/* disabled: do not bind to a specific address */
memset(a6, 0, sizeof(a6));
}
else {
if(Curl_inet_pton(AF_INET6, local_ip6, a6) != 1) {
return CURLE_BAD_FUNCTION_ARGUMENT;
}
}
ares_set_local_ip6((ares_channel)data->state.resolver, a6);
return CURLE_OK;
#else /* c-ares version too old! */
(void)data;
(void)local_ip6;
return CURLE_NOT_BUILT_IN;
#endif
}
#endif /* CURLRES_ARES */

760
dependencies/cmcurl/lib/asyn-thread.c vendored Normal file
View file

@ -0,0 +1,760 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/***********************************************************************
* Only for threaded name resolves builds
**********************************************************************/
#ifdef CURLRES_THREADED
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#if defined(USE_THREADS_POSIX)
# ifdef HAVE_PTHREAD_H
# include <pthread.h>
# endif
#elif defined(USE_THREADS_WIN32)
# ifdef HAVE_PROCESS_H
# include <process.h>
# endif
#endif
#if (defined(NETWARE) && defined(__NOVELL_LIBC__))
#undef in_addr_t
#define in_addr_t unsigned long
#endif
#ifdef HAVE_GETADDRINFO
# define RESOLVER_ENOMEM EAI_MEMORY
#else
# define RESOLVER_ENOMEM ENOMEM
#endif
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "hash.h"
#include "share.h"
#include "strerror.h"
#include "url.h"
#include "multiif.h"
#include "inet_pton.h"
#include "inet_ntop.h"
#include "curl_threads.h"
#include "connect.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
struct resdata {
struct curltime start;
};
/*
* Curl_resolver_global_init()
* Called from curl_global_init() to initialize global resolver environment.
* Does nothing here.
*/
int Curl_resolver_global_init(void)
{
return CURLE_OK;
}
/*
* Curl_resolver_global_cleanup()
* Called from curl_global_cleanup() to destroy global resolver environment.
* Does nothing here.
*/
void Curl_resolver_global_cleanup(void)
{
}
/*
* Curl_resolver_init()
* Called from curl_easy_init() -> Curl_open() to initialize resolver
* URL-state specific environment ('resolver' member of the UrlState
* structure).
*/
CURLcode Curl_resolver_init(struct Curl_easy *easy, void **resolver)
{
(void)easy;
*resolver = calloc(1, sizeof(struct resdata));
if(!*resolver)
return CURLE_OUT_OF_MEMORY;
return CURLE_OK;
}
/*
* Curl_resolver_cleanup()
* Called from curl_easy_cleanup() -> Curl_close() to cleanup resolver
* URL-state specific environment ('resolver' member of the UrlState
* structure).
*/
void Curl_resolver_cleanup(void *resolver)
{
free(resolver);
}
/*
* Curl_resolver_duphandle()
* Called from curl_easy_duphandle() to duplicate resolver URL state-specific
* environment ('resolver' member of the UrlState structure).
*/
CURLcode Curl_resolver_duphandle(struct Curl_easy *easy, void **to, void *from)
{
(void)from;
return Curl_resolver_init(easy, to);
}
static void destroy_async_data(struct Curl_async *);
/*
* Cancel all possibly still on-going resolves for this connection.
*/
void Curl_resolver_cancel(struct connectdata *conn)
{
destroy_async_data(&conn->async);
}
/* This function is used to init a threaded resolve */
static bool init_resolve_thread(struct connectdata *conn,
const char *hostname, int port,
const struct addrinfo *hints);
/* Data for synchronization between resolver thread and its parent */
struct thread_sync_data {
curl_mutex_t * mtx;
int done;
char *hostname; /* hostname to resolve, Curl_async.hostname
duplicate */
int port;
int sock_error;
Curl_addrinfo *res;
#ifdef HAVE_GETADDRINFO
struct addrinfo hints;
#endif
struct thread_data *td; /* for thread-self cleanup */
};
struct thread_data {
curl_thread_t thread_hnd;
unsigned int poll_interval;
time_t interval_end;
struct thread_sync_data tsd;
};
static struct thread_sync_data *conn_thread_sync_data(struct connectdata *conn)
{
return &(((struct thread_data *)conn->async.os_specific)->tsd);
}
/* Destroy resolver thread synchronization data */
static
void destroy_thread_sync_data(struct thread_sync_data * tsd)
{
if(tsd->mtx) {
Curl_mutex_destroy(tsd->mtx);
free(tsd->mtx);
}
free(tsd->hostname);
if(tsd->res)
Curl_freeaddrinfo(tsd->res);
memset(tsd, 0, sizeof(*tsd));
}
/* Initialize resolver thread synchronization data */
static
int init_thread_sync_data(struct thread_data * td,
const char *hostname,
int port,
const struct addrinfo *hints)
{
struct thread_sync_data *tsd = &td->tsd;
memset(tsd, 0, sizeof(*tsd));
tsd->td = td;
tsd->port = port;
/* Treat the request as done until the thread actually starts so any early
* cleanup gets done properly.
*/
tsd->done = 1;
#ifdef HAVE_GETADDRINFO
DEBUGASSERT(hints);
tsd->hints = *hints;
#else
(void) hints;
#endif
tsd->mtx = malloc(sizeof(curl_mutex_t));
if(tsd->mtx == NULL)
goto err_exit;
Curl_mutex_init(tsd->mtx);
tsd->sock_error = CURL_ASYNC_SUCCESS;
/* Copying hostname string because original can be destroyed by parent
* thread during gethostbyname execution.
*/
tsd->hostname = strdup(hostname);
if(!tsd->hostname)
goto err_exit;
return 1;
err_exit:
/* Memory allocation failed */
destroy_thread_sync_data(tsd);
return 0;
}
static int getaddrinfo_complete(struct connectdata *conn)
{
struct thread_sync_data *tsd = conn_thread_sync_data(conn);
int rc;
rc = Curl_addrinfo_callback(conn, tsd->sock_error, tsd->res);
/* The tsd->res structure has been copied to async.dns and perhaps the DNS
cache. Set our copy to NULL so destroy_thread_sync_data doesn't free it.
*/
tsd->res = NULL;
return rc;
}
#ifdef HAVE_GETADDRINFO
/*
* getaddrinfo_thread() resolves a name and then exits.
*
* For builds without ARES, but with ENABLE_IPV6, create a resolver thread
* and wait on it.
*/
static unsigned int CURL_STDCALL getaddrinfo_thread(void *arg)
{
struct thread_sync_data *tsd = (struct thread_sync_data*)arg;
struct thread_data *td = tsd->td;
char service[12];
int rc;
msnprintf(service, sizeof(service), "%d", tsd->port);
rc = Curl_getaddrinfo_ex(tsd->hostname, service, &tsd->hints, &tsd->res);
if(rc != 0) {
tsd->sock_error = SOCKERRNO?SOCKERRNO:rc;
if(tsd->sock_error == 0)
tsd->sock_error = RESOLVER_ENOMEM;
}
else {
Curl_addrinfo_set_port(tsd->res, tsd->port);
}
Curl_mutex_acquire(tsd->mtx);
if(tsd->done) {
/* too late, gotta clean up the mess */
Curl_mutex_release(tsd->mtx);
destroy_thread_sync_data(tsd);
free(td);
}
else {
tsd->done = 1;
Curl_mutex_release(tsd->mtx);
}
return 0;
}
#else /* HAVE_GETADDRINFO */
/*
* gethostbyname_thread() resolves a name and then exits.
*/
static unsigned int CURL_STDCALL gethostbyname_thread(void *arg)
{
struct thread_sync_data *tsd = (struct thread_sync_data *)arg;
struct thread_data *td = tsd->td;
tsd->res = Curl_ipv4_resolve_r(tsd->hostname, tsd->port);
if(!tsd->res) {
tsd->sock_error = SOCKERRNO;
if(tsd->sock_error == 0)
tsd->sock_error = RESOLVER_ENOMEM;
}
Curl_mutex_acquire(tsd->mtx);
if(tsd->done) {
/* too late, gotta clean up the mess */
Curl_mutex_release(tsd->mtx);
destroy_thread_sync_data(tsd);
free(td);
}
else {
tsd->done = 1;
Curl_mutex_release(tsd->mtx);
}
return 0;
}
#endif /* HAVE_GETADDRINFO */
/*
* destroy_async_data() cleans up async resolver data and thread handle.
*/
static void destroy_async_data(struct Curl_async *async)
{
if(async->os_specific) {
struct thread_data *td = (struct thread_data*) async->os_specific;
int done;
/*
* if the thread is still blocking in the resolve syscall, detach it and
* let the thread do the cleanup...
*/
Curl_mutex_acquire(td->tsd.mtx);
done = td->tsd.done;
td->tsd.done = 1;
Curl_mutex_release(td->tsd.mtx);
if(!done) {
Curl_thread_destroy(td->thread_hnd);
}
else {
if(td->thread_hnd != curl_thread_t_null)
Curl_thread_join(&td->thread_hnd);
destroy_thread_sync_data(&td->tsd);
free(async->os_specific);
}
}
async->os_specific = NULL;
free(async->hostname);
async->hostname = NULL;
}
/*
* init_resolve_thread() starts a new thread that performs the actual
* resolve. This function returns before the resolve is done.
*
* Returns FALSE in case of failure, otherwise TRUE.
*/
static bool init_resolve_thread(struct connectdata *conn,
const char *hostname, int port,
const struct addrinfo *hints)
{
struct thread_data *td = calloc(1, sizeof(struct thread_data));
int err = ENOMEM;
conn->async.os_specific = (void *)td;
if(!td)
goto errno_exit;
conn->async.port = port;
conn->async.done = FALSE;
conn->async.status = 0;
conn->async.dns = NULL;
td->thread_hnd = curl_thread_t_null;
if(!init_thread_sync_data(td, hostname, port, hints)) {
conn->async.os_specific = NULL;
free(td);
goto errno_exit;
}
free(conn->async.hostname);
conn->async.hostname = strdup(hostname);
if(!conn->async.hostname)
goto err_exit;
/* The thread will set this to 1 when complete. */
td->tsd.done = 0;
#ifdef HAVE_GETADDRINFO
td->thread_hnd = Curl_thread_create(getaddrinfo_thread, &td->tsd);
#else
td->thread_hnd = Curl_thread_create(gethostbyname_thread, &td->tsd);
#endif
if(!td->thread_hnd) {
/* The thread never started, so mark it as done here for proper cleanup. */
td->tsd.done = 1;
err = errno;
goto err_exit;
}
return TRUE;
err_exit:
destroy_async_data(&conn->async);
errno_exit:
errno = err;
return FALSE;
}
/*
* resolver_error() calls failf() with the appropriate message after a resolve
* error
*/
static CURLcode resolver_error(struct connectdata *conn)
{
const char *host_or_proxy;
CURLcode result;
if(conn->bits.httpproxy) {
host_or_proxy = "proxy";
result = CURLE_COULDNT_RESOLVE_PROXY;
}
else {
host_or_proxy = "host";
result = CURLE_COULDNT_RESOLVE_HOST;
}
failf(conn->data, "Could not resolve %s: %s", host_or_proxy,
conn->async.hostname);
return result;
}
static CURLcode thread_wait_resolv(struct connectdata *conn,
struct Curl_dns_entry **entry,
bool report)
{
struct thread_data *td = (struct thread_data*) conn->async.os_specific;
CURLcode result = CURLE_OK;
DEBUGASSERT(conn && td);
DEBUGASSERT(td->thread_hnd != curl_thread_t_null);
/* wait for the thread to resolve the name */
if(Curl_thread_join(&td->thread_hnd)) {
if(entry)
result = getaddrinfo_complete(conn);
}
else
DEBUGASSERT(0);
conn->async.done = TRUE;
if(entry)
*entry = conn->async.dns;
if(!conn->async.dns && report)
/* a name was not resolved, report error */
result = resolver_error(conn);
destroy_async_data(&conn->async);
if(!conn->async.dns && report)
connclose(conn, "asynch resolve failed");
return result;
}
/*
* Until we gain a way to signal the resolver threads to stop early, we must
* simply wait for them and ignore their results.
*/
void Curl_resolver_kill(struct connectdata *conn)
{
struct thread_data *td = (struct thread_data*) conn->async.os_specific;
/* If we're still resolving, we must wait for the threads to fully clean up,
unfortunately. Otherwise, we can simply cancel to clean up any resolver
data. */
if(td && td->thread_hnd != curl_thread_t_null)
(void)thread_wait_resolv(conn, NULL, FALSE);
else
Curl_resolver_cancel(conn);
}
/*
* Curl_resolver_wait_resolv()
*
* Waits for a resolve to finish. This function should be avoided since using
* this risk getting the multi interface to "hang".
*
* If 'entry' is non-NULL, make it point to the resolved dns entry
*
* Returns CURLE_COULDNT_RESOLVE_HOST if the host was not resolved,
* CURLE_OPERATION_TIMEDOUT if a time-out occurred, or other errors.
*
* This is the version for resolves-in-a-thread.
*/
CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
struct Curl_dns_entry **entry)
{
return thread_wait_resolv(conn, entry, TRUE);
}
/*
* Curl_resolver_is_resolved() is called repeatedly to check if a previous
* name resolve request has completed. It should also make sure to time-out if
* the operation seems to take too long.
*/
CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
struct Curl_dns_entry **entry)
{
struct Curl_easy *data = conn->data;
struct thread_data *td = (struct thread_data*) conn->async.os_specific;
int done = 0;
*entry = NULL;
if(!td) {
DEBUGASSERT(td);
return CURLE_COULDNT_RESOLVE_HOST;
}
Curl_mutex_acquire(td->tsd.mtx);
done = td->tsd.done;
Curl_mutex_release(td->tsd.mtx);
if(done) {
getaddrinfo_complete(conn);
if(!conn->async.dns) {
CURLcode result = resolver_error(conn);
destroy_async_data(&conn->async);
return result;
}
destroy_async_data(&conn->async);
*entry = conn->async.dns;
}
else {
/* poll for name lookup done with exponential backoff up to 250ms */
timediff_t elapsed = Curl_timediff(Curl_now(),
data->progress.t_startsingle);
if(elapsed < 0)
elapsed = 0;
if(td->poll_interval == 0)
/* Start at 1ms poll interval */
td->poll_interval = 1;
else if(elapsed >= td->interval_end)
/* Back-off exponentially if last interval expired */
td->poll_interval *= 2;
if(td->poll_interval > 250)
td->poll_interval = 250;
td->interval_end = elapsed + td->poll_interval;
Curl_expire(conn->data, td->poll_interval, EXPIRE_ASYNC_NAME);
}
return CURLE_OK;
}
int Curl_resolver_getsock(struct connectdata *conn,
curl_socket_t *socks,
int numsocks)
{
time_t milli;
timediff_t ms;
struct Curl_easy *data = conn->data;
struct resdata *reslv = (struct resdata *)data->state.resolver;
(void)socks;
(void)numsocks;
ms = Curl_timediff(Curl_now(), reslv->start);
if(ms < 3)
milli = 0;
else if(ms <= 50)
milli = ms/3;
else if(ms <= 250)
milli = 50;
else
milli = 200;
Curl_expire(data, milli, EXPIRE_ASYNC_NAME);
return 0;
}
#ifndef HAVE_GETADDRINFO
/*
* Curl_getaddrinfo() - for platforms without getaddrinfo
*/
Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
struct in_addr in;
struct Curl_easy *data = conn->data;
struct resdata *reslv = (struct resdata *)data->state.resolver;
*waitp = 0; /* default to synchronous response */
if(Curl_inet_pton(AF_INET, hostname, &in) > 0)
/* This is a dotted IP address 123.123.123.123-style */
return Curl_ip2addr(AF_INET, &in, hostname, port);
reslv->start = Curl_now();
/* fire up a new resolver thread! */
if(init_resolve_thread(conn, hostname, port, NULL)) {
*waitp = 1; /* expect asynchronous response */
return NULL;
}
failf(conn->data, "getaddrinfo() thread failed\n");
return NULL;
}
#else /* !HAVE_GETADDRINFO */
/*
* Curl_resolver_getaddrinfo() - for getaddrinfo
*/
Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
struct addrinfo hints;
char sbuf[12];
int pf = PF_INET;
struct Curl_easy *data = conn->data;
struct resdata *reslv = (struct resdata *)data->state.resolver;
*waitp = 0; /* default to synchronous response */
#ifndef USE_RESOLVE_ON_IPS
{
struct in_addr in;
/* First check if this is an IPv4 address string */
if(Curl_inet_pton(AF_INET, hostname, &in) > 0)
/* This is a dotted IP address 123.123.123.123-style */
return Curl_ip2addr(AF_INET, &in, hostname, port);
}
#ifdef CURLRES_IPV6
{
struct in6_addr in6;
/* check if this is an IPv6 address string */
if(Curl_inet_pton(AF_INET6, hostname, &in6) > 0)
/* This is an IPv6 address literal */
return Curl_ip2addr(AF_INET6, &in6, hostname, port);
}
#endif /* CURLRES_IPV6 */
#endif /* !USE_RESOLVE_ON_IPS */
#ifdef CURLRES_IPV6
/*
* Check if a limited name resolve has been requested.
*/
switch(conn->ip_version) {
case CURL_IPRESOLVE_V4:
pf = PF_INET;
break;
case CURL_IPRESOLVE_V6:
pf = PF_INET6;
break;
default:
pf = PF_UNSPEC;
break;
}
if((pf != PF_INET) && !Curl_ipv6works())
/* The stack seems to be a non-IPv6 one */
pf = PF_INET;
#endif /* CURLRES_IPV6 */
memset(&hints, 0, sizeof(hints));
hints.ai_family = pf;
hints.ai_socktype = conn->socktype;
msnprintf(sbuf, sizeof(sbuf), "%d", port);
reslv->start = Curl_now();
/* fire up a new resolver thread! */
if(init_resolve_thread(conn, hostname, port, &hints)) {
*waitp = 1; /* expect asynchronous response */
return NULL;
}
failf(data, "getaddrinfo() thread failed to start\n");
return NULL;
}
#endif /* !HAVE_GETADDRINFO */
CURLcode Curl_set_dns_servers(struct Curl_easy *data,
char *servers)
{
(void)data;
(void)servers;
return CURLE_NOT_BUILT_IN;
}
CURLcode Curl_set_dns_interface(struct Curl_easy *data,
const char *interf)
{
(void)data;
(void)interf;
return CURLE_NOT_BUILT_IN;
}
CURLcode Curl_set_dns_local_ip4(struct Curl_easy *data,
const char *local_ip4)
{
(void)data;
(void)local_ip4;
return CURLE_NOT_BUILT_IN;
}
CURLcode Curl_set_dns_local_ip6(struct Curl_easy *data,
const char *local_ip6)
{
(void)data;
(void)local_ip6;
return CURLE_NOT_BUILT_IN;
}
#endif /* CURLRES_THREADED */

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#ifndef HEADER_CURL_ASYN_H
#define HEADER_CURL_ASYN_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "curl_addrinfo.h"
struct addrinfo;
struct hostent;
struct Curl_easy;
struct connectdata;
struct Curl_dns_entry;
/*
* This header defines all functions in the internal asynch resolver interface.
* All asynch resolvers need to provide these functions.
* asyn-ares.c and asyn-thread.c are the current implementations of asynch
* resolver backends.
*/
/*
* Curl_resolver_global_init()
*
* Called from curl_global_init() to initialize global resolver environment.
* Returning anything else than CURLE_OK fails curl_global_init().
*/
int Curl_resolver_global_init(void);
/*
* Curl_resolver_global_cleanup()
* Called from curl_global_cleanup() to destroy global resolver environment.
*/
void Curl_resolver_global_cleanup(void);
/*
* Curl_resolver_init()
* Called from curl_easy_init() -> Curl_open() to initialize resolver
* URL-state specific environment ('resolver' member of the UrlState
* structure). Should fill the passed pointer by the initialized handler.
* Returning anything else than CURLE_OK fails curl_easy_init() with the
* correspondent code.
*/
CURLcode Curl_resolver_init(struct Curl_easy *easy, void **resolver);
/*
* Curl_resolver_cleanup()
* Called from curl_easy_cleanup() -> Curl_close() to cleanup resolver
* URL-state specific environment ('resolver' member of the UrlState
* structure). Should destroy the handler and free all resources connected to
* it.
*/
void Curl_resolver_cleanup(void *resolver);
/*
* Curl_resolver_duphandle()
* Called from curl_easy_duphandle() to duplicate resolver URL-state specific
* environment ('resolver' member of the UrlState structure). Should
* duplicate the 'from' handle and pass the resulting handle to the 'to'
* pointer. Returning anything else than CURLE_OK causes failed
* curl_easy_duphandle() call.
*/
CURLcode Curl_resolver_duphandle(struct Curl_easy *easy, void **to,
void *from);
/*
* Curl_resolver_cancel().
*
* It is called from inside other functions to cancel currently performing
* resolver request. Should also free any temporary resources allocated to
* perform a request. This never waits for resolver threads to complete.
*
* It is safe to call this when conn is in any state.
*/
void Curl_resolver_cancel(struct connectdata *conn);
/*
* Curl_resolver_kill().
*
* This acts like Curl_resolver_cancel() except it will block until any threads
* associated with the resolver are complete. This never blocks for resolvers
* that do not use threads. This is intended to be the "last chance" function
* that cleans up an in-progress resolver completely (before its owner is about
* to die).
*
* It is safe to call this when conn is in any state.
*/
void Curl_resolver_kill(struct connectdata *conn);
/* Curl_resolver_getsock()
*
* This function is called from the multi_getsock() function. 'sock' is a
* pointer to an array to hold the file descriptors, with 'numsock' being the
* size of that array (in number of entries). This function is supposed to
* return bitmask indicating what file descriptors (referring to array indexes
* in the 'sock' array) to wait for, read/write.
*/
int Curl_resolver_getsock(struct connectdata *conn, curl_socket_t *sock,
int numsocks);
/*
* Curl_resolver_is_resolved()
*
* Called repeatedly to check if a previous name resolve request has
* completed. It should also make sure to time-out if the operation seems to
* take too long.
*
* Returns normal CURLcode errors.
*/
CURLcode Curl_resolver_is_resolved(struct connectdata *conn,
struct Curl_dns_entry **dns);
/*
* Curl_resolver_wait_resolv()
*
* Waits for a resolve to finish. This function should be avoided since using
* this risk getting the multi interface to "hang".
*
* If 'entry' is non-NULL, make it point to the resolved dns entry
*
* Returns CURLE_COULDNT_RESOLVE_HOST if the host was not resolved,
* CURLE_OPERATION_TIMEDOUT if a time-out occurred, or other errors.
*/
CURLcode Curl_resolver_wait_resolv(struct connectdata *conn,
struct Curl_dns_entry **dnsentry);
/*
* Curl_resolver_getaddrinfo() - when using this resolver
*
* Returns name information about the given hostname and port number. If
* successful, the 'hostent' is returned and the forth argument will point to
* memory we need to free after use. That memory *MUST* be freed with
* Curl_freeaddrinfo(), nothing else.
*
* Each resolver backend must of course make sure to return data in the
* correct format to comply with this.
*/
Curl_addrinfo *Curl_resolver_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp);
#ifndef CURLRES_ASYNCH
/* convert these functions if an asynch resolver isn't used */
#define Curl_resolver_cancel(x) Curl_nop_stmt
#define Curl_resolver_kill(x) Curl_nop_stmt
#define Curl_resolver_is_resolved(x,y) CURLE_COULDNT_RESOLVE_HOST
#define Curl_resolver_wait_resolv(x,y) CURLE_COULDNT_RESOLVE_HOST
#define Curl_resolver_getsock(x,y,z) 0
#define Curl_resolver_duphandle(x,y,z) CURLE_OK
#define Curl_resolver_init(x,y) CURLE_OK
#define Curl_resolver_global_init() CURLE_OK
#define Curl_resolver_global_cleanup() Curl_nop_stmt
#define Curl_resolver_cleanup(x) Curl_nop_stmt
#endif
#ifdef CURLRES_ASYNCH
#define Curl_resolver_asynch() 1
#else
#define Curl_resolver_asynch() 0
#endif
/********** end of generic resolver interface functions *****************/
#endif /* HEADER_CURL_ASYN_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* Base64 encoding/decoding */
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP_AUTH) || defined(USE_LIBSSH2) || \
defined(USE_LIBSSH) || !defined(CURL_DISABLE_LDAP) || \
!defined(CURL_DISABLE_DOH) || defined(USE_SSL)
#include "urldata.h" /* for the Curl_easy definition */
#include "warnless.h"
#include "curl_base64.h"
#include "non-ascii.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* ---- Base64 Encoding/Decoding Table --- */
static const char base64[]=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
/* The Base 64 encoding with an URL and filename safe alphabet, RFC 4648
section 5 */
static const char base64url[]=
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_";
static size_t decodeQuantum(unsigned char *dest, const char *src)
{
size_t padding = 0;
const char *s, *p;
unsigned long i, x = 0;
for(i = 0, s = src; i < 4; i++, s++) {
if(*s == '=') {
x = (x << 6);
padding++;
}
else {
unsigned long v = 0;
p = base64;
while(*p && (*p != *s)) {
v++;
p++;
}
if(*p == *s)
x = (x << 6) + v;
else
return 0;
}
}
if(padding < 1)
dest[2] = curlx_ultouc(x & 0xFFUL);
x >>= 8;
if(padding < 2)
dest[1] = curlx_ultouc(x & 0xFFUL);
x >>= 8;
dest[0] = curlx_ultouc(x & 0xFFUL);
return 3 - padding;
}
/*
* Curl_base64_decode()
*
* Given a base64 NUL-terminated string at src, decode it and return a
* pointer in *outptr to a newly allocated memory area holding decoded
* data. Size of decoded data is returned in variable pointed by outlen.
*
* Returns CURLE_OK on success, otherwise specific error code. Function
* output shall not be considered valid unless CURLE_OK is returned.
*
* When decoded data length is 0, returns NULL in *outptr.
*
* @unittest: 1302
*/
CURLcode Curl_base64_decode(const char *src,
unsigned char **outptr, size_t *outlen)
{
size_t srclen = 0;
size_t length = 0;
size_t padding = 0;
size_t i;
size_t numQuantums;
size_t rawlen = 0;
unsigned char *pos;
unsigned char *newstr;
*outptr = NULL;
*outlen = 0;
srclen = strlen(src);
/* Check the length of the input string is valid */
if(!srclen || srclen % 4)
return CURLE_BAD_CONTENT_ENCODING;
/* Find the position of any = padding characters */
while((src[length] != '=') && src[length])
length++;
/* A maximum of two = padding characters is allowed */
if(src[length] == '=') {
padding++;
if(src[length + 1] == '=')
padding++;
}
/* Check the = padding characters weren't part way through the input */
if(length + padding != srclen)
return CURLE_BAD_CONTENT_ENCODING;
/* Calculate the number of quantums */
numQuantums = srclen / 4;
/* Calculate the size of the decoded string */
rawlen = (numQuantums * 3) - padding;
/* Allocate our buffer including room for a zero terminator */
newstr = malloc(rawlen + 1);
if(!newstr)
return CURLE_OUT_OF_MEMORY;
pos = newstr;
/* Decode the quantums */
for(i = 0; i < numQuantums; i++) {
size_t result = decodeQuantum(pos, src);
if(!result) {
free(newstr);
return CURLE_BAD_CONTENT_ENCODING;
}
pos += result;
src += 4;
}
/* Zero terminate */
*pos = '\0';
/* Return the decoded data */
*outptr = newstr;
*outlen = rawlen;
return CURLE_OK;
}
static CURLcode base64_encode(const char *table64,
struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen)
{
CURLcode result;
unsigned char ibuf[3];
unsigned char obuf[4];
int i;
int inputparts;
char *output;
char *base64data;
char *convbuf = NULL;
const char *indata = inputbuff;
*outptr = NULL;
*outlen = 0;
if(!insize)
insize = strlen(indata);
#if SIZEOF_SIZE_T == 4
if(insize > UINT_MAX/4)
return CURLE_OUT_OF_MEMORY;
#endif
base64data = output = malloc(insize * 4 / 3 + 4);
if(!output)
return CURLE_OUT_OF_MEMORY;
/*
* The base64 data needs to be created using the network encoding
* not the host encoding. And we can't change the actual input
* so we copy it to a buffer, translate it, and use that instead.
*/
result = Curl_convert_clone(data, indata, insize, &convbuf);
if(result) {
free(output);
return result;
}
if(convbuf)
indata = (char *)convbuf;
while(insize > 0) {
for(i = inputparts = 0; i < 3; i++) {
if(insize > 0) {
inputparts++;
ibuf[i] = (unsigned char) *indata;
indata++;
insize--;
}
else
ibuf[i] = 0;
}
obuf[0] = (unsigned char) ((ibuf[0] & 0xFC) >> 2);
obuf[1] = (unsigned char) (((ibuf[0] & 0x03) << 4) | \
((ibuf[1] & 0xF0) >> 4));
obuf[2] = (unsigned char) (((ibuf[1] & 0x0F) << 2) | \
((ibuf[2] & 0xC0) >> 6));
obuf[3] = (unsigned char) (ibuf[2] & 0x3F);
switch(inputparts) {
case 1: /* only one byte read */
msnprintf(output, 5, "%c%c==",
table64[obuf[0]],
table64[obuf[1]]);
break;
case 2: /* two bytes read */
msnprintf(output, 5, "%c%c%c=",
table64[obuf[0]],
table64[obuf[1]],
table64[obuf[2]]);
break;
default:
msnprintf(output, 5, "%c%c%c%c",
table64[obuf[0]],
table64[obuf[1]],
table64[obuf[2]],
table64[obuf[3]]);
break;
}
output += 4;
}
/* Zero terminate */
*output = '\0';
/* Return the pointer to the new data (allocated memory) */
*outptr = base64data;
free(convbuf);
/* Return the length of the new data */
*outlen = strlen(base64data);
return CURLE_OK;
}
/*
* Curl_base64_encode()
*
* Given a pointer to an input buffer and an input size, encode it and
* return a pointer in *outptr to a newly allocated memory area holding
* encoded data. Size of encoded data is returned in variable pointed by
* outlen.
*
* Input length of 0 indicates input buffer holds a NUL-terminated string.
*
* Returns CURLE_OK on success, otherwise specific error code. Function
* output shall not be considered valid unless CURLE_OK is returned.
*
* When encoded data length is 0, returns NULL in *outptr.
*
* @unittest: 1302
*/
CURLcode Curl_base64_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen)
{
return base64_encode(base64, data, inputbuff, insize, outptr, outlen);
}
/*
* Curl_base64url_encode()
*
* Given a pointer to an input buffer and an input size, encode it and
* return a pointer in *outptr to a newly allocated memory area holding
* encoded data. Size of encoded data is returned in variable pointed by
* outlen.
*
* Input length of 0 indicates input buffer holds a NUL-terminated string.
*
* Returns CURLE_OK on success, otherwise specific error code. Function
* output shall not be considered valid unless CURLE_OK is returned.
*
* When encoded data length is 0, returns NULL in *outptr.
*
* @unittest: 1302
*/
CURLcode Curl_base64url_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen)
{
return base64_encode(base64url, data, inputbuff, insize, outptr, outlen);
}
#endif /* no users so disabled */

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@ -0,0 +1,631 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2016, Linus Nielsen Feltzing, <linus@haxx.se>
* Copyright (C) 2012 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "urldata.h"
#include "url.h"
#include "progress.h"
#include "multiif.h"
#include "sendf.h"
#include "conncache.h"
#include "share.h"
#include "sigpipe.h"
#include "connect.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#ifdef CURLDEBUG
/* the debug versions of these macros make extra certain that the lock is
never doubly locked or unlocked */
#define CONN_LOCK(x) if((x)->share) { \
Curl_share_lock((x), CURL_LOCK_DATA_CONNECT, CURL_LOCK_ACCESS_SINGLE); \
DEBUGASSERT(!(x)->state.conncache_lock); \
(x)->state.conncache_lock = TRUE; \
}
#define CONN_UNLOCK(x) if((x)->share) { \
DEBUGASSERT((x)->state.conncache_lock); \
(x)->state.conncache_lock = FALSE; \
Curl_share_unlock((x), CURL_LOCK_DATA_CONNECT); \
}
#else
#define CONN_LOCK(x) if((x)->share) \
Curl_share_lock((x), CURL_LOCK_DATA_CONNECT, CURL_LOCK_ACCESS_SINGLE)
#define CONN_UNLOCK(x) if((x)->share) \
Curl_share_unlock((x), CURL_LOCK_DATA_CONNECT)
#endif
static void conn_llist_dtor(void *user, void *element)
{
struct connectdata *conn = element;
(void)user;
conn->bundle = NULL;
}
static CURLcode bundle_create(struct Curl_easy *data,
struct connectbundle **cb_ptr)
{
(void)data;
DEBUGASSERT(*cb_ptr == NULL);
*cb_ptr = malloc(sizeof(struct connectbundle));
if(!*cb_ptr)
return CURLE_OUT_OF_MEMORY;
(*cb_ptr)->num_connections = 0;
(*cb_ptr)->multiuse = BUNDLE_UNKNOWN;
Curl_llist_init(&(*cb_ptr)->conn_list, (curl_llist_dtor) conn_llist_dtor);
return CURLE_OK;
}
static void bundle_destroy(struct connectbundle *cb_ptr)
{
if(!cb_ptr)
return;
Curl_llist_destroy(&cb_ptr->conn_list, NULL);
free(cb_ptr);
}
/* Add a connection to a bundle */
static void bundle_add_conn(struct connectbundle *cb_ptr,
struct connectdata *conn)
{
Curl_llist_insert_next(&cb_ptr->conn_list, cb_ptr->conn_list.tail, conn,
&conn->bundle_node);
conn->bundle = cb_ptr;
cb_ptr->num_connections++;
}
/* Remove a connection from a bundle */
static int bundle_remove_conn(struct connectbundle *cb_ptr,
struct connectdata *conn)
{
struct curl_llist_element *curr;
curr = cb_ptr->conn_list.head;
while(curr) {
if(curr->ptr == conn) {
Curl_llist_remove(&cb_ptr->conn_list, curr, NULL);
cb_ptr->num_connections--;
conn->bundle = NULL;
return 1; /* we removed a handle */
}
curr = curr->next;
}
return 0;
}
static void free_bundle_hash_entry(void *freethis)
{
struct connectbundle *b = (struct connectbundle *) freethis;
bundle_destroy(b);
}
int Curl_conncache_init(struct conncache *connc, int size)
{
int rc;
/* allocate a new easy handle to use when closing cached connections */
connc->closure_handle = curl_easy_init();
if(!connc->closure_handle)
return 1; /* bad */
rc = Curl_hash_init(&connc->hash, size, Curl_hash_str,
Curl_str_key_compare, free_bundle_hash_entry);
if(rc) {
Curl_close(connc->closure_handle);
connc->closure_handle = NULL;
}
else
connc->closure_handle->state.conn_cache = connc;
return rc;
}
void Curl_conncache_destroy(struct conncache *connc)
{
if(connc)
Curl_hash_destroy(&connc->hash);
}
/* creates a key to find a bundle for this connection */
static void hashkey(struct connectdata *conn, char *buf,
size_t len) /* something like 128 is fine */
{
const char *hostname;
if(conn->bits.socksproxy)
hostname = conn->socks_proxy.host.name;
else if(conn->bits.httpproxy)
hostname = conn->http_proxy.host.name;
else if(conn->bits.conn_to_host)
hostname = conn->conn_to_host.name;
else
hostname = conn->host.name;
DEBUGASSERT(len > 32);
/* put the number first so that the hostname gets cut off if too long */
msnprintf(buf, len, "%ld%s", conn->port, hostname);
}
void Curl_conncache_unlock(struct Curl_easy *data)
{
CONN_UNLOCK(data);
}
/* Returns number of connections currently held in the connection cache.
Locks/unlocks the cache itself!
*/
size_t Curl_conncache_size(struct Curl_easy *data)
{
size_t num;
CONN_LOCK(data);
num = data->state.conn_cache->num_conn;
CONN_UNLOCK(data);
return num;
}
/* Returns number of connections currently held in the connections's bundle
Locks/unlocks the cache itself!
*/
size_t Curl_conncache_bundle_size(struct connectdata *conn)
{
size_t num;
CONN_LOCK(conn->data);
num = conn->bundle->num_connections;
CONN_UNLOCK(conn->data);
return num;
}
/* Look up the bundle with all the connections to the same host this
connectdata struct is setup to use.
**NOTE**: When it returns, it holds the connection cache lock! */
struct connectbundle *Curl_conncache_find_bundle(struct connectdata *conn,
struct conncache *connc)
{
struct connectbundle *bundle = NULL;
CONN_LOCK(conn->data);
if(connc) {
char key[128];
hashkey(conn, key, sizeof(key));
bundle = Curl_hash_pick(&connc->hash, key, strlen(key));
}
return bundle;
}
static bool conncache_add_bundle(struct conncache *connc,
char *key,
struct connectbundle *bundle)
{
void *p = Curl_hash_add(&connc->hash, key, strlen(key), bundle);
return p?TRUE:FALSE;
}
static void conncache_remove_bundle(struct conncache *connc,
struct connectbundle *bundle)
{
struct curl_hash_iterator iter;
struct curl_hash_element *he;
if(!connc)
return;
Curl_hash_start_iterate(&connc->hash, &iter);
he = Curl_hash_next_element(&iter);
while(he) {
if(he->ptr == bundle) {
/* The bundle is destroyed by the hash destructor function,
free_bundle_hash_entry() */
Curl_hash_delete(&connc->hash, he->key, he->key_len);
return;
}
he = Curl_hash_next_element(&iter);
}
}
CURLcode Curl_conncache_add_conn(struct conncache *connc,
struct connectdata *conn)
{
CURLcode result = CURLE_OK;
struct connectbundle *bundle;
struct connectbundle *new_bundle = NULL;
struct Curl_easy *data = conn->data;
/* *find_bundle() locks the connection cache */
bundle = Curl_conncache_find_bundle(conn, data->state.conn_cache);
if(!bundle) {
int rc;
char key[128];
result = bundle_create(data, &new_bundle);
if(result) {
goto unlock;
}
hashkey(conn, key, sizeof(key));
rc = conncache_add_bundle(data->state.conn_cache, key, new_bundle);
if(!rc) {
bundle_destroy(new_bundle);
result = CURLE_OUT_OF_MEMORY;
goto unlock;
}
bundle = new_bundle;
}
bundle_add_conn(bundle, conn);
conn->connection_id = connc->next_connection_id++;
connc->num_conn++;
DEBUGF(infof(conn->data, "Added connection %ld. "
"The cache now contains %zu members\n",
conn->connection_id, connc->num_conn));
unlock:
CONN_UNLOCK(data);
return result;
}
/*
* Removes the connectdata object from the connection cache *and* clears the
* ->data pointer association. Pass TRUE/FALSE in the 'lock' argument
* depending on if the parent function already holds the lock or not.
*/
void Curl_conncache_remove_conn(struct Curl_easy *data,
struct connectdata *conn, bool lock)
{
struct connectbundle *bundle = conn->bundle;
struct conncache *connc = data->state.conn_cache;
/* The bundle pointer can be NULL, since this function can be called
due to a failed connection attempt, before being added to a bundle */
if(bundle) {
if(lock) {
CONN_LOCK(data);
}
bundle_remove_conn(bundle, conn);
if(bundle->num_connections == 0)
conncache_remove_bundle(connc, bundle);
conn->bundle = NULL; /* removed from it */
if(connc) {
connc->num_conn--;
DEBUGF(infof(data, "The cache now contains %zu members\n",
connc->num_conn));
}
conn->data = NULL; /* clear the association */
if(lock) {
CONN_UNLOCK(data);
}
}
}
/* This function iterates the entire connection cache and calls the function
func() with the connection pointer as the first argument and the supplied
'param' argument as the other.
The conncache lock is still held when the callback is called. It needs it,
so that it can safely continue traversing the lists once the callback
returns.
Returns 1 if the loop was aborted due to the callback's return code.
Return 0 from func() to continue the loop, return 1 to abort it.
*/
bool Curl_conncache_foreach(struct Curl_easy *data,
struct conncache *connc,
void *param,
int (*func)(struct connectdata *conn, void *param))
{
struct curl_hash_iterator iter;
struct curl_llist_element *curr;
struct curl_hash_element *he;
if(!connc)
return FALSE;
CONN_LOCK(data);
Curl_hash_start_iterate(&connc->hash, &iter);
he = Curl_hash_next_element(&iter);
while(he) {
struct connectbundle *bundle;
bundle = he->ptr;
he = Curl_hash_next_element(&iter);
curr = bundle->conn_list.head;
while(curr) {
/* Yes, we need to update curr before calling func(), because func()
might decide to remove the connection */
struct connectdata *conn = curr->ptr;
curr = curr->next;
if(1 == func(conn, param)) {
CONN_UNLOCK(data);
return TRUE;
}
}
}
CONN_UNLOCK(data);
return FALSE;
}
/* Return the first connection found in the cache. Used when closing all
connections.
NOTE: no locking is done here as this is presumably only done when cleaning
up a cache!
*/
static struct connectdata *
conncache_find_first_connection(struct conncache *connc)
{
struct curl_hash_iterator iter;
struct curl_hash_element *he;
struct connectbundle *bundle;
Curl_hash_start_iterate(&connc->hash, &iter);
he = Curl_hash_next_element(&iter);
while(he) {
struct curl_llist_element *curr;
bundle = he->ptr;
curr = bundle->conn_list.head;
if(curr) {
return curr->ptr;
}
he = Curl_hash_next_element(&iter);
}
return NULL;
}
/*
* Give ownership of a connection back to the connection cache. Might
* disconnect the oldest existing in there to make space.
*
* Return TRUE if stored, FALSE if closed.
*/
bool Curl_conncache_return_conn(struct connectdata *conn)
{
struct Curl_easy *data = conn->data;
/* data->multi->maxconnects can be negative, deal with it. */
size_t maxconnects =
(data->multi->maxconnects < 0) ? data->multi->num_easy * 4:
data->multi->maxconnects;
struct connectdata *conn_candidate = NULL;
conn->data = NULL; /* no owner anymore */
conn->lastused = Curl_now(); /* it was used up until now */
if(maxconnects > 0 &&
Curl_conncache_size(data) > maxconnects) {
infof(data, "Connection cache is full, closing the oldest one.\n");
conn_candidate = Curl_conncache_extract_oldest(data);
if(conn_candidate) {
/* the winner gets the honour of being disconnected */
(void)Curl_disconnect(data, conn_candidate, /* dead_connection */ FALSE);
}
}
return (conn_candidate == conn) ? FALSE : TRUE;
}
/*
* This function finds the connection in the connection bundle that has been
* unused for the longest time.
*
* Does not lock the connection cache!
*
* Returns the pointer to the oldest idle connection, or NULL if none was
* found.
*/
struct connectdata *
Curl_conncache_extract_bundle(struct Curl_easy *data,
struct connectbundle *bundle)
{
struct curl_llist_element *curr;
timediff_t highscore = -1;
timediff_t score;
struct curltime now;
struct connectdata *conn_candidate = NULL;
struct connectdata *conn;
(void)data;
now = Curl_now();
curr = bundle->conn_list.head;
while(curr) {
conn = curr->ptr;
if(!CONN_INUSE(conn) && !conn->data) {
/* Set higher score for the age passed since the connection was used */
score = Curl_timediff(now, conn->lastused);
if(score > highscore) {
highscore = score;
conn_candidate = conn;
}
}
curr = curr->next;
}
if(conn_candidate) {
/* remove it to prevent another thread from nicking it */
bundle_remove_conn(bundle, conn_candidate);
data->state.conn_cache->num_conn--;
DEBUGF(infof(data, "The cache now contains %zu members\n",
data->state.conn_cache->num_conn));
conn_candidate->data = data; /* associate! */
}
return conn_candidate;
}
/*
* This function finds the connection in the connection cache that has been
* unused for the longest time and extracts that from the bundle.
*
* Returns the pointer to the connection, or NULL if none was found.
*/
struct connectdata *
Curl_conncache_extract_oldest(struct Curl_easy *data)
{
struct conncache *connc = data->state.conn_cache;
struct curl_hash_iterator iter;
struct curl_llist_element *curr;
struct curl_hash_element *he;
timediff_t highscore =- 1;
timediff_t score;
struct curltime now;
struct connectdata *conn_candidate = NULL;
struct connectbundle *bundle;
struct connectbundle *bundle_candidate = NULL;
now = Curl_now();
CONN_LOCK(data);
Curl_hash_start_iterate(&connc->hash, &iter);
he = Curl_hash_next_element(&iter);
while(he) {
struct connectdata *conn;
bundle = he->ptr;
curr = bundle->conn_list.head;
while(curr) {
conn = curr->ptr;
if(!CONN_INUSE(conn) && !conn->data) {
/* Set higher score for the age passed since the connection was used */
score = Curl_timediff(now, conn->lastused);
if(score > highscore) {
highscore = score;
conn_candidate = conn;
bundle_candidate = bundle;
}
}
curr = curr->next;
}
he = Curl_hash_next_element(&iter);
}
if(conn_candidate) {
/* remove it to prevent another thread from nicking it */
bundle_remove_conn(bundle_candidate, conn_candidate);
connc->num_conn--;
DEBUGF(infof(data, "The cache now contains %zu members\n",
connc->num_conn));
conn_candidate->data = data; /* associate! */
}
CONN_UNLOCK(data);
return conn_candidate;
}
void Curl_conncache_close_all_connections(struct conncache *connc)
{
struct connectdata *conn;
conn = conncache_find_first_connection(connc);
while(conn) {
SIGPIPE_VARIABLE(pipe_st);
conn->data = connc->closure_handle;
sigpipe_ignore(conn->data, &pipe_st);
/* This will remove the connection from the cache */
connclose(conn, "kill all");
(void)Curl_disconnect(connc->closure_handle, conn, FALSE);
sigpipe_restore(&pipe_st);
conn = conncache_find_first_connection(connc);
}
if(connc->closure_handle) {
SIGPIPE_VARIABLE(pipe_st);
sigpipe_ignore(connc->closure_handle, &pipe_st);
Curl_hostcache_clean(connc->closure_handle,
connc->closure_handle->dns.hostcache);
Curl_close(connc->closure_handle);
sigpipe_restore(&pipe_st);
}
}
#if 0
/* Useful for debugging the connection cache */
void Curl_conncache_print(struct conncache *connc)
{
struct curl_hash_iterator iter;
struct curl_llist_element *curr;
struct curl_hash_element *he;
if(!connc)
return;
fprintf(stderr, "=Bundle cache=\n");
Curl_hash_start_iterate(connc->hash, &iter);
he = Curl_hash_next_element(&iter);
while(he) {
struct connectbundle *bundle;
struct connectdata *conn;
bundle = he->ptr;
fprintf(stderr, "%s -", he->key);
curr = bundle->conn_list->head;
while(curr) {
conn = curr->ptr;
fprintf(stderr, " [%p %d]", (void *)conn, conn->inuse);
curr = curr->next;
}
fprintf(stderr, "\n");
he = Curl_hash_next_element(&iter);
}
}
#endif

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#ifndef HEADER_CURL_CONNCACHE_H
#define HEADER_CURL_CONNCACHE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2015 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 2012 - 2014, Linus Nielsen Feltzing, <linus@haxx.se>
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* All accesses to struct fields and changing of data in the connection cache
* and connectbundles must be done with the conncache LOCKED. The cache might
* be shared.
*/
struct conncache {
struct curl_hash hash;
size_t num_conn;
long next_connection_id;
struct curltime last_cleanup;
/* handle used for closing cached connections */
struct Curl_easy *closure_handle;
};
#define BUNDLE_NO_MULTIUSE -1
#define BUNDLE_UNKNOWN 0 /* initial value */
#define BUNDLE_MULTIPLEX 2
struct connectbundle {
int multiuse; /* supports multi-use */
size_t num_connections; /* Number of connections in the bundle */
struct curl_llist conn_list; /* The connectdata members of the bundle */
};
/* returns 1 on error, 0 is fine */
int Curl_conncache_init(struct conncache *, int size);
void Curl_conncache_destroy(struct conncache *connc);
/* return the correct bundle, to a host or a proxy */
struct connectbundle *Curl_conncache_find_bundle(struct connectdata *conn,
struct conncache *connc);
void Curl_conncache_unlock(struct Curl_easy *data);
/* returns number of connections currently held in the connection cache */
size_t Curl_conncache_size(struct Curl_easy *data);
size_t Curl_conncache_bundle_size(struct connectdata *conn);
bool Curl_conncache_return_conn(struct connectdata *conn);
CURLcode Curl_conncache_add_conn(struct conncache *connc,
struct connectdata *conn) WARN_UNUSED_RESULT;
void Curl_conncache_remove_conn(struct Curl_easy *data,
struct connectdata *conn,
bool lock);
bool Curl_conncache_foreach(struct Curl_easy *data,
struct conncache *connc,
void *param,
int (*func)(struct connectdata *conn,
void *param));
struct connectdata *
Curl_conncache_find_first_connection(struct conncache *connc);
struct connectdata *
Curl_conncache_extract_bundle(struct Curl_easy *data,
struct connectbundle *bundle);
struct connectdata *
Curl_conncache_extract_oldest(struct Curl_easy *data);
void Curl_conncache_close_all_connections(struct conncache *connc);
void Curl_conncache_print(struct conncache *connc);
#endif /* HEADER_CURL_CONNCACHE_H */

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#ifndef HEADER_CURL_CONNECT_H
#define HEADER_CURL_CONNECT_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "nonblock.h" /* for curlx_nonblock(), formerly Curl_nonblock() */
#include "sockaddr.h"
#include "timeval.h"
CURLcode Curl_is_connected(struct connectdata *conn,
int sockindex,
bool *connected);
CURLcode Curl_connecthost(struct connectdata *conn,
const struct Curl_dns_entry *host);
/* generic function that returns how much time there's left to run, according
to the timeouts set */
timediff_t Curl_timeleft(struct Curl_easy *data,
struct curltime *nowp,
bool duringconnect);
#define DEFAULT_CONNECT_TIMEOUT 300000 /* milliseconds == five minutes */
/*
* Used to extract socket and connectdata struct for the most recent
* transfer on the given Curl_easy.
*
* The returned socket will be CURL_SOCKET_BAD in case of failure!
*/
curl_socket_t Curl_getconnectinfo(struct Curl_easy *data,
struct connectdata **connp);
/*
* Check if a connection seems to be alive.
*/
bool Curl_connalive(struct connectdata *conn);
#ifdef USE_WINSOCK
/* When you run a program that uses the Windows Sockets API, you may
experience slow performance when you copy data to a TCP server.
https://support.microsoft.com/kb/823764
Work-around: Make the Socket Send Buffer Size Larger Than the Program Send
Buffer Size
*/
void Curl_sndbufset(curl_socket_t sockfd);
#else
#define Curl_sndbufset(y) Curl_nop_stmt
#endif
void Curl_updateconninfo(struct connectdata *conn, curl_socket_t sockfd);
void Curl_persistconninfo(struct connectdata *conn);
int Curl_closesocket(struct connectdata *conn, curl_socket_t sock);
/*
* The Curl_sockaddr_ex structure is basically libcurl's external API
* curl_sockaddr structure with enough space available to directly hold any
* protocol-specific address structures. The variable declared here will be
* used to pass / receive data to/from the fopensocket callback if this has
* been set, before that, it is initialized from parameters.
*/
struct Curl_sockaddr_ex {
int family;
int socktype;
int protocol;
unsigned int addrlen;
union {
struct sockaddr addr;
struct Curl_sockaddr_storage buff;
} _sa_ex_u;
};
#define sa_addr _sa_ex_u.addr
/*
* Create a socket based on info from 'conn' and 'ai'.
*
* Fill in 'addr' and 'sockfd' accordingly if OK is returned. If the open
* socket callback is set, used that!
*
*/
CURLcode Curl_socket(struct connectdata *conn,
const Curl_addrinfo *ai,
struct Curl_sockaddr_ex *addr,
curl_socket_t *sockfd);
/*
* Curl_conncontrol() marks the end of a connection/stream. The 'closeit'
* argument specifies if it is the end of a connection or a stream.
*
* For stream-based protocols (such as HTTP/2), a stream close will not cause
* a connection close. Other protocols will close the connection for both
* cases.
*
* It sets the bit.close bit to TRUE (with an explanation for debug builds),
* when the connection will close.
*/
#define CONNCTRL_KEEP 0 /* undo a marked closure */
#define CONNCTRL_CONNECTION 1
#define CONNCTRL_STREAM 2
void Curl_conncontrol(struct connectdata *conn,
int closeit
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
, const char *reason
#endif
);
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
#define streamclose(x,y) Curl_conncontrol(x, CONNCTRL_STREAM, y)
#define connclose(x,y) Curl_conncontrol(x, CONNCTRL_CONNECTION, y)
#define connkeep(x,y) Curl_conncontrol(x, CONNCTRL_KEEP, y)
#else /* if !DEBUGBUILD || CURL_DISABLE_VERBOSE_STRINGS */
#define streamclose(x,y) Curl_conncontrol(x, CONNCTRL_STREAM)
#define connclose(x,y) Curl_conncontrol(x, CONNCTRL_CONNECTION)
#define connkeep(x,y) Curl_conncontrol(x, CONNCTRL_KEEP)
#endif
bool Curl_conn_data_pending(struct connectdata *conn, int sockindex);
#endif /* HEADER_CURL_CONNECT_H */

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#ifndef HEADER_CURL_CONTENT_ENCODING_H
#define HEADER_CURL_CONTENT_ENCODING_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/* Decoding writer. */
typedef struct contenc_writer_s contenc_writer;
typedef struct content_encoding_s content_encoding;
struct contenc_writer_s {
const content_encoding *handler; /* Encoding handler. */
contenc_writer *downstream; /* Downstream writer. */
void *params; /* Encoding-specific storage (variable length). */
};
/* Content encoding writer. */
struct content_encoding_s {
const char *name; /* Encoding name. */
const char *alias; /* Encoding name alias. */
CURLcode (*init_writer)(struct connectdata *conn, contenc_writer *writer);
CURLcode (*unencode_write)(struct connectdata *conn, contenc_writer *writer,
const char *buf, size_t nbytes);
void (*close_writer)(struct connectdata *conn, contenc_writer *writer);
size_t paramsize;
};
CURLcode Curl_build_unencoding_stack(struct connectdata *conn,
const char *enclist, int maybechunked);
CURLcode Curl_unencode_write(struct connectdata *conn, contenc_writer *writer,
const char *buf, size_t nbytes);
void Curl_unencode_cleanup(struct connectdata *conn);
char *Curl_all_content_encodings(void);
#endif /* HEADER_CURL_CONTENT_ENCODING_H */

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#ifndef HEADER_CURL_COOKIE_H
#define HEADER_CURL_COOKIE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
struct Cookie {
struct Cookie *next; /* next in the chain */
char *name; /* <this> = value */
char *value; /* name = <this> */
char *path; /* path = <this> which is in Set-Cookie: */
char *spath; /* sanitized cookie path */
char *domain; /* domain = <this> */
curl_off_t expires; /* expires = <this> */
char *expirestr; /* the plain text version */
bool tailmatch; /* whether we do tail-matching of the domain name */
/* RFC 2109 keywords. Version=1 means 2109-compliant cookie sending */
char *version; /* Version = <value> */
char *maxage; /* Max-Age = <value> */
bool secure; /* whether the 'secure' keyword was used */
bool livecookie; /* updated from a server, not a stored file */
bool httponly; /* true if the httponly directive is present */
int creationtime; /* time when the cookie was written */
unsigned char prefix; /* bitmap fields indicating which prefix are set */
};
/*
* Available cookie prefixes, as defined in
* draft-ietf-httpbis-rfc6265bis-02
*/
#define COOKIE_PREFIX__SECURE (1<<0)
#define COOKIE_PREFIX__HOST (1<<1)
#define COOKIE_HASH_SIZE 256
struct CookieInfo {
/* linked list of cookies we know of */
struct Cookie *cookies[COOKIE_HASH_SIZE];
char *filename; /* file we read from/write to */
bool running; /* state info, for cookie adding information */
long numcookies; /* number of cookies in the "jar" */
bool newsession; /* new session, discard session cookies on load */
int lastct; /* last creation-time used in the jar */
};
/* This is the maximum line length we accept for a cookie line. RFC 2109
section 6.3 says:
"at least 4096 bytes per cookie (as measured by the size of the characters
that comprise the cookie non-terminal in the syntax description of the
Set-Cookie header)"
We allow max 5000 bytes cookie header. Max 4095 bytes length per cookie
name and value. Name + value may not exceed 4096 bytes.
*/
#define MAX_COOKIE_LINE 5000
/* This is the maximum length of a cookie name or content we deal with: */
#define MAX_NAME 4096
#define MAX_NAME_TXT "4095"
struct Curl_easy;
/*
* Add a cookie to the internal list of cookies. The domain and path arguments
* are only used if the header boolean is TRUE.
*/
struct Cookie *Curl_cookie_add(struct Curl_easy *data,
struct CookieInfo *, bool header, bool noexpiry,
char *lineptr,
const char *domain, const char *path,
bool secure);
struct Cookie *Curl_cookie_getlist(struct CookieInfo *, const char *,
const char *, bool);
void Curl_cookie_freelist(struct Cookie *cookies);
void Curl_cookie_clearall(struct CookieInfo *cookies);
void Curl_cookie_clearsess(struct CookieInfo *cookies);
#if defined(CURL_DISABLE_HTTP) || defined(CURL_DISABLE_COOKIES)
#define Curl_cookie_list(x) NULL
#define Curl_cookie_loadfiles(x) Curl_nop_stmt
#define Curl_cookie_init(x,y,z,w) NULL
#define Curl_cookie_cleanup(x) Curl_nop_stmt
#define Curl_flush_cookies(x,y) Curl_nop_stmt
#else
void Curl_flush_cookies(struct Curl_easy *data, int cleanup);
void Curl_cookie_cleanup(struct CookieInfo *);
struct CookieInfo *Curl_cookie_init(struct Curl_easy *data,
const char *, struct CookieInfo *, bool);
struct curl_slist *Curl_cookie_list(struct Curl_easy *data);
void Curl_cookie_loadfiles(struct Curl_easy *data);
#endif
#endif /* HEADER_CURL_COOKIE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
# include <netinet/in6.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef HAVE_SYS_UN_H
# include <sys/un.h>
#endif
#ifdef __VMS
# include <in.h>
# include <inet.h>
#endif
#if defined(NETWARE) && defined(__NOVELL_LIBC__)
# undef in_addr_t
# define in_addr_t unsigned long
#endif
#if defined(WIN32) && defined(USE_UNIX_SOCKETS)
#include <afunix.h>
#endif
#include <stddef.h>
#include "curl_addrinfo.h"
#include "inet_pton.h"
#include "warnless.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/*
* Curl_freeaddrinfo()
*
* This is used to free a linked list of Curl_addrinfo structs along
* with all its associated allocated storage. This function should be
* called once for each successful call to Curl_getaddrinfo_ex() or to
* any function call which actually allocates a Curl_addrinfo struct.
*/
#if defined(__INTEL_COMPILER) && (__INTEL_COMPILER == 910) && \
defined(__OPTIMIZE__) && defined(__unix__) && defined(__i386__)
/* workaround icc 9.1 optimizer issue */
# define vqualifier volatile
#else
# define vqualifier
#endif
void
Curl_freeaddrinfo(Curl_addrinfo *cahead)
{
Curl_addrinfo *vqualifier canext;
Curl_addrinfo *ca;
for(ca = cahead; ca != NULL; ca = canext) {
free(ca->ai_addr);
free(ca->ai_canonname);
canext = ca->ai_next;
free(ca);
}
}
#ifdef HAVE_GETADDRINFO
/*
* Curl_getaddrinfo_ex()
*
* This is a wrapper function around system's getaddrinfo(), with
* the only difference that instead of returning a linked list of
* addrinfo structs this one returns a linked list of Curl_addrinfo
* ones. The memory allocated by this function *MUST* be free'd with
* Curl_freeaddrinfo(). For each successful call to this function
* there must be an associated call later to Curl_freeaddrinfo().
*
* There should be no single call to system's getaddrinfo() in the
* whole library, any such call should be 'routed' through this one.
*/
int
Curl_getaddrinfo_ex(const char *nodename,
const char *servname,
const struct addrinfo *hints,
Curl_addrinfo **result)
{
const struct addrinfo *ai;
struct addrinfo *aihead;
Curl_addrinfo *cafirst = NULL;
Curl_addrinfo *calast = NULL;
Curl_addrinfo *ca;
size_t ss_size;
int error;
*result = NULL; /* assume failure */
error = getaddrinfo(nodename, servname, hints, &aihead);
if(error)
return error;
/* traverse the addrinfo list */
for(ai = aihead; ai != NULL; ai = ai->ai_next) {
/* ignore elements with unsupported address family, */
/* settle family-specific sockaddr structure size. */
if(ai->ai_family == AF_INET)
ss_size = sizeof(struct sockaddr_in);
#ifdef ENABLE_IPV6
else if(ai->ai_family == AF_INET6)
ss_size = sizeof(struct sockaddr_in6);
#endif
else
continue;
/* ignore elements without required address info */
if((ai->ai_addr == NULL) || !(ai->ai_addrlen > 0))
continue;
/* ignore elements with bogus address size */
if((size_t)ai->ai_addrlen < ss_size)
continue;
ca = malloc(sizeof(Curl_addrinfo));
if(!ca) {
error = EAI_MEMORY;
break;
}
/* copy each structure member individually, member ordering, */
/* size, or padding might be different for each platform. */
ca->ai_flags = ai->ai_flags;
ca->ai_family = ai->ai_family;
ca->ai_socktype = ai->ai_socktype;
ca->ai_protocol = ai->ai_protocol;
ca->ai_addrlen = (curl_socklen_t)ss_size;
ca->ai_addr = NULL;
ca->ai_canonname = NULL;
ca->ai_next = NULL;
ca->ai_addr = malloc(ss_size);
if(!ca->ai_addr) {
error = EAI_MEMORY;
free(ca);
break;
}
memcpy(ca->ai_addr, ai->ai_addr, ss_size);
if(ai->ai_canonname != NULL) {
ca->ai_canonname = strdup(ai->ai_canonname);
if(!ca->ai_canonname) {
error = EAI_MEMORY;
free(ca->ai_addr);
free(ca);
break;
}
}
/* if the return list is empty, this becomes the first element */
if(!cafirst)
cafirst = ca;
/* add this element last in the return list */
if(calast)
calast->ai_next = ca;
calast = ca;
}
/* destroy the addrinfo list */
if(aihead)
freeaddrinfo(aihead);
/* if we failed, also destroy the Curl_addrinfo list */
if(error) {
Curl_freeaddrinfo(cafirst);
cafirst = NULL;
}
else if(!cafirst) {
#ifdef EAI_NONAME
/* rfc3493 conformant */
error = EAI_NONAME;
#else
/* rfc3493 obsoleted */
error = EAI_NODATA;
#endif
#ifdef USE_WINSOCK
SET_SOCKERRNO(error);
#endif
}
*result = cafirst;
/* This is not a CURLcode */
return error;
}
#endif /* HAVE_GETADDRINFO */
/*
* Curl_he2ai()
*
* This function returns a pointer to the first element of a newly allocated
* Curl_addrinfo struct linked list filled with the data of a given hostent.
* Curl_addrinfo is meant to work like the addrinfo struct does for a IPv6
* stack, but usable also for IPv4, all hosts and environments.
*
* The memory allocated by this function *MUST* be free'd later on calling
* Curl_freeaddrinfo(). For each successful call to this function there
* must be an associated call later to Curl_freeaddrinfo().
*
* Curl_addrinfo defined in "lib/curl_addrinfo.h"
*
* struct Curl_addrinfo {
* int ai_flags;
* int ai_family;
* int ai_socktype;
* int ai_protocol;
* curl_socklen_t ai_addrlen; * Follow rfc3493 struct addrinfo *
* char *ai_canonname;
* struct sockaddr *ai_addr;
* struct Curl_addrinfo *ai_next;
* };
* typedef struct Curl_addrinfo Curl_addrinfo;
*
* hostent defined in <netdb.h>
*
* struct hostent {
* char *h_name;
* char **h_aliases;
* int h_addrtype;
* int h_length;
* char **h_addr_list;
* };
*
* for backward compatibility:
*
* #define h_addr h_addr_list[0]
*/
Curl_addrinfo *
Curl_he2ai(const struct hostent *he, int port)
{
Curl_addrinfo *ai;
Curl_addrinfo *prevai = NULL;
Curl_addrinfo *firstai = NULL;
struct sockaddr_in *addr;
#ifdef ENABLE_IPV6
struct sockaddr_in6 *addr6;
#endif
CURLcode result = CURLE_OK;
int i;
char *curr;
if(!he)
/* no input == no output! */
return NULL;
DEBUGASSERT((he->h_name != NULL) && (he->h_addr_list != NULL));
for(i = 0; (curr = he->h_addr_list[i]) != NULL; i++) {
size_t ss_size;
#ifdef ENABLE_IPV6
if(he->h_addrtype == AF_INET6)
ss_size = sizeof(struct sockaddr_in6);
else
#endif
ss_size = sizeof(struct sockaddr_in);
ai = calloc(1, sizeof(Curl_addrinfo));
if(!ai) {
result = CURLE_OUT_OF_MEMORY;
break;
}
ai->ai_canonname = strdup(he->h_name);
if(!ai->ai_canonname) {
result = CURLE_OUT_OF_MEMORY;
free(ai);
break;
}
ai->ai_addr = calloc(1, ss_size);
if(!ai->ai_addr) {
result = CURLE_OUT_OF_MEMORY;
free(ai->ai_canonname);
free(ai);
break;
}
if(!firstai)
/* store the pointer we want to return from this function */
firstai = ai;
if(prevai)
/* make the previous entry point to this */
prevai->ai_next = ai;
ai->ai_family = he->h_addrtype;
/* we return all names as STREAM, so when using this address for TFTP
the type must be ignored and conn->socktype be used instead! */
ai->ai_socktype = SOCK_STREAM;
ai->ai_addrlen = (curl_socklen_t)ss_size;
/* leave the rest of the struct filled with zero */
switch(ai->ai_family) {
case AF_INET:
addr = (void *)ai->ai_addr; /* storage area for this info */
memcpy(&addr->sin_addr, curr, sizeof(struct in_addr));
addr->sin_family = (CURL_SA_FAMILY_T)(he->h_addrtype);
addr->sin_port = htons((unsigned short)port);
break;
#ifdef ENABLE_IPV6
case AF_INET6:
addr6 = (void *)ai->ai_addr; /* storage area for this info */
memcpy(&addr6->sin6_addr, curr, sizeof(struct in6_addr));
addr6->sin6_family = (CURL_SA_FAMILY_T)(he->h_addrtype);
addr6->sin6_port = htons((unsigned short)port);
break;
#endif
}
prevai = ai;
}
if(result) {
Curl_freeaddrinfo(firstai);
firstai = NULL;
}
return firstai;
}
struct namebuff {
struct hostent hostentry;
union {
struct in_addr ina4;
#ifdef ENABLE_IPV6
struct in6_addr ina6;
#endif
} addrentry;
char *h_addr_list[2];
};
/*
* Curl_ip2addr()
*
* This function takes an internet address, in binary form, as input parameter
* along with its address family and the string version of the address, and it
* returns a Curl_addrinfo chain filled in correctly with information for the
* given address/host
*/
Curl_addrinfo *
Curl_ip2addr(int af, const void *inaddr, const char *hostname, int port)
{
Curl_addrinfo *ai;
#if defined(__VMS) && \
defined(__INITIAL_POINTER_SIZE) && (__INITIAL_POINTER_SIZE == 64)
#pragma pointer_size save
#pragma pointer_size short
#pragma message disable PTRMISMATCH
#endif
struct hostent *h;
struct namebuff *buf;
char *addrentry;
char *hoststr;
size_t addrsize;
DEBUGASSERT(inaddr && hostname);
buf = malloc(sizeof(struct namebuff));
if(!buf)
return NULL;
hoststr = strdup(hostname);
if(!hoststr) {
free(buf);
return NULL;
}
switch(af) {
case AF_INET:
addrsize = sizeof(struct in_addr);
addrentry = (void *)&buf->addrentry.ina4;
memcpy(addrentry, inaddr, sizeof(struct in_addr));
break;
#ifdef ENABLE_IPV6
case AF_INET6:
addrsize = sizeof(struct in6_addr);
addrentry = (void *)&buf->addrentry.ina6;
memcpy(addrentry, inaddr, sizeof(struct in6_addr));
break;
#endif
default:
free(hoststr);
free(buf);
return NULL;
}
h = &buf->hostentry;
h->h_name = hoststr;
h->h_aliases = NULL;
h->h_addrtype = (short)af;
h->h_length = (short)addrsize;
h->h_addr_list = &buf->h_addr_list[0];
h->h_addr_list[0] = addrentry;
h->h_addr_list[1] = NULL; /* terminate list of entries */
#if defined(__VMS) && \
defined(__INITIAL_POINTER_SIZE) && (__INITIAL_POINTER_SIZE == 64)
#pragma pointer_size restore
#pragma message enable PTRMISMATCH
#endif
ai = Curl_he2ai(h, port);
free(hoststr);
free(buf);
return ai;
}
/*
* Given an IPv4 or IPv6 dotted string address, this converts it to a proper
* allocated Curl_addrinfo struct and returns it.
*/
Curl_addrinfo *Curl_str2addr(char *address, int port)
{
struct in_addr in;
if(Curl_inet_pton(AF_INET, address, &in) > 0)
/* This is a dotted IP address 123.123.123.123-style */
return Curl_ip2addr(AF_INET, &in, address, port);
#ifdef ENABLE_IPV6
{
struct in6_addr in6;
if(Curl_inet_pton(AF_INET6, address, &in6) > 0)
/* This is a dotted IPv6 address ::1-style */
return Curl_ip2addr(AF_INET6, &in6, address, port);
}
#endif
return NULL; /* bad input format */
}
#ifdef USE_UNIX_SOCKETS
/**
* Given a path to a Unix domain socket, return a newly allocated Curl_addrinfo
* struct initialized with this path.
* Set '*longpath' to TRUE if the error is a too long path.
*/
Curl_addrinfo *Curl_unix2addr(const char *path, bool *longpath, bool abstract)
{
Curl_addrinfo *ai;
struct sockaddr_un *sa_un;
size_t path_len;
*longpath = FALSE;
ai = calloc(1, sizeof(Curl_addrinfo));
if(!ai)
return NULL;
ai->ai_addr = calloc(1, sizeof(struct sockaddr_un));
if(!ai->ai_addr) {
free(ai);
return NULL;
}
sa_un = (void *) ai->ai_addr;
sa_un->sun_family = AF_UNIX;
/* sun_path must be able to store the NUL-terminated path */
path_len = strlen(path) + 1;
if(path_len > sizeof(sa_un->sun_path)) {
free(ai->ai_addr);
free(ai);
*longpath = TRUE;
return NULL;
}
ai->ai_family = AF_UNIX;
ai->ai_socktype = SOCK_STREAM; /* assume reliable transport for HTTP */
ai->ai_addrlen = (curl_socklen_t)
((offsetof(struct sockaddr_un, sun_path) + path_len) & 0x7FFFFFFF);
/* Abstract Unix domain socket have NULL prefix instead of suffix */
if(abstract)
memcpy(sa_un->sun_path + 1, path, path_len - 1);
else
memcpy(sa_un->sun_path, path, path_len); /* copy NUL byte */
return ai;
}
#endif
#if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO) && \
defined(HAVE_FREEADDRINFO)
/*
* curl_dbg_freeaddrinfo()
*
* This is strictly for memory tracing and are using the same style as the
* family otherwise present in memdebug.c. I put these ones here since they
* require a bunch of structs I didn't want to include in memdebug.c
*/
void
curl_dbg_freeaddrinfo(struct addrinfo *freethis,
int line, const char *source)
{
curl_dbg_log("ADDR %s:%d freeaddrinfo(%p)\n",
source, line, (void *)freethis);
#ifdef USE_LWIPSOCK
lwip_freeaddrinfo(freethis);
#else
(freeaddrinfo)(freethis);
#endif
}
#endif /* defined(CURLDEBUG) && defined(HAVE_FREEADDRINFO) */
#if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO)
/*
* curl_dbg_getaddrinfo()
*
* This is strictly for memory tracing and are using the same style as the
* family otherwise present in memdebug.c. I put these ones here since they
* require a bunch of structs I didn't want to include in memdebug.c
*/
int
curl_dbg_getaddrinfo(const char *hostname,
const char *service,
const struct addrinfo *hints,
struct addrinfo **result,
int line, const char *source)
{
#ifdef USE_LWIPSOCK
int res = lwip_getaddrinfo(hostname, service, hints, result);
#else
int res = (getaddrinfo)(hostname, service, hints, result);
#endif
if(0 == res)
/* success */
curl_dbg_log("ADDR %s:%d getaddrinfo() = %p\n",
source, line, (void *)*result);
else
curl_dbg_log("ADDR %s:%d getaddrinfo() failed\n",
source, line);
return res;
}
#endif /* defined(CURLDEBUG) && defined(HAVE_GETADDRINFO) */
#if defined(HAVE_GETADDRINFO) && defined(USE_RESOLVE_ON_IPS)
/*
* Work-arounds the sin6_port is always zero bug on iOS 9.3.2 and Mac OS X
* 10.11.5.
*/
void Curl_addrinfo_set_port(Curl_addrinfo *addrinfo, int port)
{
Curl_addrinfo *ca;
struct sockaddr_in *addr;
#ifdef ENABLE_IPV6
struct sockaddr_in6 *addr6;
#endif
for(ca = addrinfo; ca != NULL; ca = ca->ai_next) {
switch(ca->ai_family) {
case AF_INET:
addr = (void *)ca->ai_addr; /* storage area for this info */
addr->sin_port = htons((unsigned short)port);
break;
#ifdef ENABLE_IPV6
case AF_INET6:
addr6 = (void *)ca->ai_addr; /* storage area for this info */
addr6->sin6_port = htons((unsigned short)port);
break;
#endif
}
}
}
#endif

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#ifndef HEADER_CURL_ADDRINFO_H
#define HEADER_CURL_ADDRINFO_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_NETINET_IN_H
# include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
# include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif
#ifdef __VMS
# include <in.h>
# include <inet.h>
# include <stdlib.h>
#endif
/*
* Curl_addrinfo is our internal struct definition that we use to allow
* consistent internal handling of this data. We use this even when the
* system provides an addrinfo structure definition. And we use this for
* all sorts of IPv4 and IPV6 builds.
*/
struct Curl_addrinfo {
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
curl_socklen_t ai_addrlen; /* Follow rfc3493 struct addrinfo */
char *ai_canonname;
struct sockaddr *ai_addr;
struct Curl_addrinfo *ai_next;
};
typedef struct Curl_addrinfo Curl_addrinfo;
void
Curl_freeaddrinfo(Curl_addrinfo *cahead);
#ifdef HAVE_GETADDRINFO
int
Curl_getaddrinfo_ex(const char *nodename,
const char *servname,
const struct addrinfo *hints,
Curl_addrinfo **result);
#endif
Curl_addrinfo *
Curl_he2ai(const struct hostent *he, int port);
Curl_addrinfo *
Curl_ip2addr(int af, const void *inaddr, const char *hostname, int port);
Curl_addrinfo *Curl_str2addr(char *dotted, int port);
#ifdef USE_UNIX_SOCKETS
Curl_addrinfo *Curl_unix2addr(const char *path, bool *longpath, bool abstract);
#endif
#if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO) && \
defined(HAVE_FREEADDRINFO)
void
curl_dbg_freeaddrinfo(struct addrinfo *freethis, int line, const char *source);
#endif
#if defined(CURLDEBUG) && defined(HAVE_GETADDRINFO)
int
curl_dbg_getaddrinfo(const char *hostname, const char *service,
const struct addrinfo *hints, struct addrinfo **result,
int line, const char *source);
#endif
#ifdef HAVE_GETADDRINFO
#ifdef USE_RESOLVE_ON_IPS
void Curl_addrinfo_set_port(Curl_addrinfo *addrinfo, int port);
#else
#define Curl_addrinfo_set_port(x,y)
#endif
#endif
#endif /* HEADER_CURL_ADDRINFO_H */

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#ifndef HEADER_CURL_BASE64_H
#define HEADER_CURL_BASE64_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
CURLcode Curl_base64_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen);
CURLcode Curl_base64url_encode(struct Curl_easy *data,
const char *inputbuff, size_t insize,
char **outptr, size_t *outlen);
CURLcode Curl_base64_decode(const char *src,
unsigned char **outptr, size_t *outlen);
#endif /* HEADER_CURL_BASE64_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DOES_CONVERSIONS
#undef _U
#define _U (1<<0) /* upper case */
#undef _L
#define _L (1<<1) /* lower case */
#undef _N
#define _N (1<<2) /* decimal numerical digit */
#undef _S
#define _S (1<<3) /* space */
#undef _P
#define _P (1<<4) /* punctuation */
#undef _C
#define _C (1<<5) /* control */
#undef _X
#define _X (1<<6) /* hexadecimal letter */
#undef _B
#define _B (1<<7) /* blank */
static const unsigned char ascii[128] = {
_C, _C, _C, _C, _C, _C, _C, _C,
_C, _C|_S, _C|_S, _C|_S, _C|_S, _C|_S, _C, _C,
_C, _C, _C, _C, _C, _C, _C, _C,
_C, _C, _C, _C, _C, _C, _C, _C,
_S|_B, _P, _P, _P, _P, _P, _P, _P,
_P, _P, _P, _P, _P, _P, _P, _P,
_N, _N, _N, _N, _N, _N, _N, _N,
_N, _N, _P, _P, _P, _P, _P, _P,
_P, _U|_X, _U|_X, _U|_X, _U|_X, _U|_X, _U|_X, _U,
_U, _U, _U, _U, _U, _U, _U, _U,
_U, _U, _U, _U, _U, _U, _U, _U,
_U, _U, _U, _P, _P, _P, _P, _P,
_P, _L|_X, _L|_X, _L|_X, _L|_X, _L|_X, _L|_X, _L,
_L, _L, _L, _L, _L, _L, _L, _L,
_L, _L, _L, _L, _L, _L, _L, _L,
_L, _L, _L, _P, _P, _P, _P, _C
};
int Curl_isspace(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & _S);
}
int Curl_isdigit(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & _N);
}
int Curl_isalnum(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_N|_U|_L));
}
int Curl_isxdigit(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_N|_X));
}
int Curl_isgraph(int c)
{
if((c < 0) || (c >= 0x80) || (c == ' '))
return FALSE;
return (ascii[c] & (_N|_X|_U|_L|_P|_S));
}
int Curl_isprint(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_N|_X|_U|_L|_P|_S));
}
int Curl_isalpha(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_U|_L));
}
int Curl_isupper(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_U));
}
int Curl_islower(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_L));
}
int Curl_iscntrl(int c)
{
if((c < 0) || (c >= 0x80))
return FALSE;
return (ascii[c] & (_C));
}
#endif /* !CURL_DOES_CONVERSIONS */

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#ifndef HEADER_CURL_CTYPE_H
#define HEADER_CURL_CTYPE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef CURL_DOES_CONVERSIONS
/*
* Uppercase macro versions of ANSI/ISO is*() functions/macros which
* avoid negative number inputs with argument byte codes > 127.
*
* For non-ASCII platforms the C library character classification routines
* are used despite being locale-dependent, because this is better than
* not to work at all.
*/
#include <ctype.h>
#define ISSPACE(x) (isspace((int) ((unsigned char)x)))
#define ISDIGIT(x) (isdigit((int) ((unsigned char)x)))
#define ISALNUM(x) (isalnum((int) ((unsigned char)x)))
#define ISXDIGIT(x) (isxdigit((int) ((unsigned char)x)))
#define ISGRAPH(x) (isgraph((int) ((unsigned char)x)))
#define ISALPHA(x) (isalpha((int) ((unsigned char)x)))
#define ISPRINT(x) (isprint((int) ((unsigned char)x)))
#define ISUPPER(x) (isupper((int) ((unsigned char)x)))
#define ISLOWER(x) (islower((int) ((unsigned char)x)))
#define ISCNTRL(x) (iscntrl((int) ((unsigned char)x)))
#define ISASCII(x) (isascii((int) ((unsigned char)x)))
#else
int Curl_isspace(int c);
int Curl_isdigit(int c);
int Curl_isalnum(int c);
int Curl_isxdigit(int c);
int Curl_isgraph(int c);
int Curl_isprint(int c);
int Curl_isalpha(int c);
int Curl_isupper(int c);
int Curl_islower(int c);
int Curl_iscntrl(int c);
#define ISSPACE(x) (Curl_isspace((int) ((unsigned char)x)))
#define ISDIGIT(x) (Curl_isdigit((int) ((unsigned char)x)))
#define ISALNUM(x) (Curl_isalnum((int) ((unsigned char)x)))
#define ISXDIGIT(x) (Curl_isxdigit((int) ((unsigned char)x)))
#define ISGRAPH(x) (Curl_isgraph((int) ((unsigned char)x)))
#define ISALPHA(x) (Curl_isalpha((int) ((unsigned char)x)))
#define ISPRINT(x) (Curl_isprint((int) ((unsigned char)x)))
#define ISUPPER(x) (Curl_isupper((int) ((unsigned char)x)))
#define ISLOWER(x) (Curl_islower((int) ((unsigned char)x)))
#define ISCNTRL(x) (Curl_iscntrl((int) ((unsigned char)x)))
#define ISASCII(x) (((x) >= 0) && ((x) <= 0x80))
#endif
#define ISBLANK(x) (int)((((unsigned char)x) == ' ') || \
(((unsigned char)x) == '\t'))
#endif /* HEADER_CURL_CTYPE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2015, Steve Holme, <steve_holme@hotmail.com>.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NTLM) && !defined(USE_OPENSSL)
#include "curl_des.h"
/*
* Curl_des_set_odd_parity()
*
* This is used to apply odd parity to the given byte array. It is typically
* used by when a cryptography engines doesn't have it's own version.
*
* The function is a port of the Java based oddParity() function over at:
*
* https://davenport.sourceforge.io/ntlm.html
*
* Parameters:
*
* bytes [in/out] - The data whose parity bits are to be adjusted for
* odd parity.
* len [out] - The length of the data.
*/
void Curl_des_set_odd_parity(unsigned char *bytes, size_t len)
{
size_t i;
for(i = 0; i < len; i++) {
unsigned char b = bytes[i];
bool needs_parity = (((b >> 7) ^ (b >> 6) ^ (b >> 5) ^
(b >> 4) ^ (b >> 3) ^ (b >> 2) ^
(b >> 1)) & 0x01) == 0;
if(needs_parity)
bytes[i] |= 0x01;
else
bytes[i] &= 0xfe;
}
}
#endif /* USE_NTLM && !USE_OPENSSL */

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#ifndef HEADER_CURL_DES_H
#define HEADER_CURL_DES_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2015, Steve Holme, <steve_holme@hotmail.com>.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NTLM) && !defined(USE_OPENSSL)
/* Applies odd parity to the given byte array */
void Curl_des_set_odd_parity(unsigned char *bytes, size_t length);
#endif /* USE_NTLM && !USE_OPENSSL */
#endif /* HEADER_CURL_DES_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "curl_endian.h"
/*
* Curl_read16_le()
*
* This function converts a 16-bit integer from the little endian format, as
* used in the incoming package to whatever endian format we're using
* natively.
*
* Parameters:
*
* buf [in] - A pointer to a 2 byte buffer.
*
* Returns the integer.
*/
unsigned short Curl_read16_le(const unsigned char *buf)
{
return (unsigned short)(((unsigned short)buf[0]) |
((unsigned short)buf[1] << 8));
}
/*
* Curl_read32_le()
*
* This function converts a 32-bit integer from the little endian format, as
* used in the incoming package to whatever endian format we're using
* natively.
*
* Parameters:
*
* buf [in] - A pointer to a 4 byte buffer.
*
* Returns the integer.
*/
unsigned int Curl_read32_le(const unsigned char *buf)
{
return ((unsigned int)buf[0]) | ((unsigned int)buf[1] << 8) |
((unsigned int)buf[2] << 16) | ((unsigned int)buf[3] << 24);
}
/*
* Curl_read16_be()
*
* This function converts a 16-bit integer from the big endian format, as
* used in the incoming package to whatever endian format we're using
* natively.
*
* Parameters:
*
* buf [in] - A pointer to a 2 byte buffer.
*
* Returns the integer.
*/
unsigned short Curl_read16_be(const unsigned char *buf)
{
return (unsigned short)(((unsigned short)buf[0] << 8) |
((unsigned short)buf[1]));
}
/*
* write32_le()
*
* This function converts a 32-bit integer from the native endian format,
* to little endian format ready for sending down the wire.
*
* Parameters:
*
* value [in] - The 32-bit integer value.
* buffer [in] - A pointer to the output buffer.
*/
static void write32_le(const int value, unsigned char *buffer)
{
buffer[0] = (char)(value & 0x000000FF);
buffer[1] = (char)((value & 0x0000FF00) >> 8);
buffer[2] = (char)((value & 0x00FF0000) >> 16);
buffer[3] = (char)((value & 0xFF000000) >> 24);
}
#if (CURL_SIZEOF_CURL_OFF_T > 4)
/*
* Curl_write64_le()
*
* This function converts a 64-bit integer from the native endian format,
* to little endian format ready for sending down the wire.
*
* Parameters:
*
* value [in] - The 64-bit integer value.
* buffer [in] - A pointer to the output buffer.
*/
#if defined(HAVE_LONGLONG)
void Curl_write64_le(const long long value, unsigned char *buffer)
#else
void Curl_write64_le(const __int64 value, unsigned char *buffer)
#endif
{
write32_le((int)value, buffer);
write32_le((int)(value >> 32), buffer + 4);
}
#endif /* CURL_SIZEOF_CURL_OFF_T > 4 */

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#ifndef HEADER_CURL_ENDIAN_H
#define HEADER_CURL_ENDIAN_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* Converts a 16-bit integer from little endian */
unsigned short Curl_read16_le(const unsigned char *buf);
/* Converts a 32-bit integer from little endian */
unsigned int Curl_read32_le(const unsigned char *buf);
/* Converts a 16-bit integer from big endian */
unsigned short Curl_read16_be(const unsigned char *buf);
/* Converts a 32-bit integer to little endian */
void Curl_write32_le(const int value, unsigned char *buffer);
#if (CURL_SIZEOF_CURL_OFF_T > 4)
/* Converts a 64-bit integer to little endian */
#if defined(HAVE_LONGLONG)
void Curl_write64_le(const long long value, unsigned char *buffer);
#else
void Curl_write64_le(const __int64 value, unsigned char *buffer);
#endif
#endif
#endif /* HEADER_CURL_ENDIAN_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FTP
#include <curl/curl.h>
#include "curl_fnmatch.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#ifndef HAVE_FNMATCH
#define CURLFNM_CHARSET_LEN (sizeof(char) * 256)
#define CURLFNM_CHSET_SIZE (CURLFNM_CHARSET_LEN + 15)
#define CURLFNM_NEGATE CURLFNM_CHARSET_LEN
#define CURLFNM_ALNUM (CURLFNM_CHARSET_LEN + 1)
#define CURLFNM_DIGIT (CURLFNM_CHARSET_LEN + 2)
#define CURLFNM_XDIGIT (CURLFNM_CHARSET_LEN + 3)
#define CURLFNM_ALPHA (CURLFNM_CHARSET_LEN + 4)
#define CURLFNM_PRINT (CURLFNM_CHARSET_LEN + 5)
#define CURLFNM_BLANK (CURLFNM_CHARSET_LEN + 6)
#define CURLFNM_LOWER (CURLFNM_CHARSET_LEN + 7)
#define CURLFNM_GRAPH (CURLFNM_CHARSET_LEN + 8)
#define CURLFNM_SPACE (CURLFNM_CHARSET_LEN + 9)
#define CURLFNM_UPPER (CURLFNM_CHARSET_LEN + 10)
typedef enum {
CURLFNM_SCHS_DEFAULT = 0,
CURLFNM_SCHS_RIGHTBR,
CURLFNM_SCHS_RIGHTBRLEFTBR
} setcharset_state;
typedef enum {
CURLFNM_PKW_INIT = 0,
CURLFNM_PKW_DDOT
} parsekey_state;
typedef enum {
CCLASS_OTHER = 0,
CCLASS_DIGIT,
CCLASS_UPPER,
CCLASS_LOWER
} char_class;
#define SETCHARSET_OK 1
#define SETCHARSET_FAIL 0
static int parsekeyword(unsigned char **pattern, unsigned char *charset)
{
parsekey_state state = CURLFNM_PKW_INIT;
#define KEYLEN 10
char keyword[KEYLEN] = { 0 };
int found = FALSE;
int i;
unsigned char *p = *pattern;
for(i = 0; !found; i++) {
char c = *p++;
if(i >= KEYLEN)
return SETCHARSET_FAIL;
switch(state) {
case CURLFNM_PKW_INIT:
if(ISLOWER(c))
keyword[i] = c;
else if(c == ':')
state = CURLFNM_PKW_DDOT;
else
return SETCHARSET_FAIL;
break;
case CURLFNM_PKW_DDOT:
if(c == ']')
found = TRUE;
else
return SETCHARSET_FAIL;
}
}
#undef KEYLEN
*pattern = p; /* move caller's pattern pointer */
if(strcmp(keyword, "digit") == 0)
charset[CURLFNM_DIGIT] = 1;
else if(strcmp(keyword, "alnum") == 0)
charset[CURLFNM_ALNUM] = 1;
else if(strcmp(keyword, "alpha") == 0)
charset[CURLFNM_ALPHA] = 1;
else if(strcmp(keyword, "xdigit") == 0)
charset[CURLFNM_XDIGIT] = 1;
else if(strcmp(keyword, "print") == 0)
charset[CURLFNM_PRINT] = 1;
else if(strcmp(keyword, "graph") == 0)
charset[CURLFNM_GRAPH] = 1;
else if(strcmp(keyword, "space") == 0)
charset[CURLFNM_SPACE] = 1;
else if(strcmp(keyword, "blank") == 0)
charset[CURLFNM_BLANK] = 1;
else if(strcmp(keyword, "upper") == 0)
charset[CURLFNM_UPPER] = 1;
else if(strcmp(keyword, "lower") == 0)
charset[CURLFNM_LOWER] = 1;
else
return SETCHARSET_FAIL;
return SETCHARSET_OK;
}
/* Return the character class. */
static char_class charclass(unsigned char c)
{
if(ISUPPER(c))
return CCLASS_UPPER;
if(ISLOWER(c))
return CCLASS_LOWER;
if(ISDIGIT(c))
return CCLASS_DIGIT;
return CCLASS_OTHER;
}
/* Include a character or a range in set. */
static void setcharorrange(unsigned char **pp, unsigned char *charset)
{
unsigned char *p = (*pp)++;
unsigned char c = *p++;
charset[c] = 1;
if(ISALNUM(c) && *p++ == '-') {
char_class cc = charclass(c);
unsigned char endrange = *p++;
if(endrange == '\\')
endrange = *p++;
if(endrange >= c && charclass(endrange) == cc) {
while(c++ != endrange)
if(charclass(c) == cc) /* Chars in class may be not consecutive. */
charset[c] = 1;
*pp = p;
}
}
}
/* returns 1 (true) if pattern is OK, 0 if is bad ("p" is pattern pointer) */
static int setcharset(unsigned char **p, unsigned char *charset)
{
setcharset_state state = CURLFNM_SCHS_DEFAULT;
bool something_found = FALSE;
unsigned char c;
memset(charset, 0, CURLFNM_CHSET_SIZE);
for(;;) {
c = **p;
if(!c)
return SETCHARSET_FAIL;
switch(state) {
case CURLFNM_SCHS_DEFAULT:
if(c == ']') {
if(something_found)
return SETCHARSET_OK;
something_found = TRUE;
state = CURLFNM_SCHS_RIGHTBR;
charset[c] = 1;
(*p)++;
}
else if(c == '[') {
unsigned char *pp = *p + 1;
if(*pp++ == ':' && parsekeyword(&pp, charset))
*p = pp;
else {
charset[c] = 1;
(*p)++;
}
something_found = TRUE;
}
else if(c == '^' || c == '!') {
if(!something_found) {
if(charset[CURLFNM_NEGATE]) {
charset[c] = 1;
something_found = TRUE;
}
else
charset[CURLFNM_NEGATE] = 1; /* negate charset */
}
else
charset[c] = 1;
(*p)++;
}
else if(c == '\\') {
c = *(++(*p));
if(c)
setcharorrange(p, charset);
else
charset['\\'] = 1;
something_found = TRUE;
}
else {
setcharorrange(p, charset);
something_found = TRUE;
}
break;
case CURLFNM_SCHS_RIGHTBR:
if(c == '[') {
state = CURLFNM_SCHS_RIGHTBRLEFTBR;
charset[c] = 1;
(*p)++;
}
else if(c == ']') {
return SETCHARSET_OK;
}
else if(ISPRINT(c)) {
charset[c] = 1;
(*p)++;
state = CURLFNM_SCHS_DEFAULT;
}
else
/* used 'goto fail' instead of 'return SETCHARSET_FAIL' to avoid a
* nonsense warning 'statement not reached' at end of the fnc when
* compiling on Solaris */
goto fail;
break;
case CURLFNM_SCHS_RIGHTBRLEFTBR:
if(c == ']')
return SETCHARSET_OK;
state = CURLFNM_SCHS_DEFAULT;
charset[c] = 1;
(*p)++;
break;
}
}
fail:
return SETCHARSET_FAIL;
}
static int loop(const unsigned char *pattern, const unsigned char *string,
int maxstars)
{
unsigned char *p = (unsigned char *)pattern;
unsigned char *s = (unsigned char *)string;
unsigned char charset[CURLFNM_CHSET_SIZE] = { 0 };
for(;;) {
unsigned char *pp;
switch(*p) {
case '*':
if(!maxstars)
return CURL_FNMATCH_NOMATCH;
/* Regroup consecutive stars and question marks. This can be done because
'*?*?*' can be expressed as '??*'. */
for(;;) {
if(*++p == '\0')
return CURL_FNMATCH_MATCH;
if(*p == '?') {
if(!*s++)
return CURL_FNMATCH_NOMATCH;
}
else if(*p != '*')
break;
}
/* Skip string characters until we find a match with pattern suffix. */
for(maxstars--; *s; s++) {
if(loop(p, s, maxstars) == CURL_FNMATCH_MATCH)
return CURL_FNMATCH_MATCH;
}
return CURL_FNMATCH_NOMATCH;
case '?':
if(!*s)
return CURL_FNMATCH_NOMATCH;
s++;
p++;
break;
case '\0':
return *s? CURL_FNMATCH_NOMATCH: CURL_FNMATCH_MATCH;
case '\\':
if(p[1])
p++;
if(*s++ != *p++)
return CURL_FNMATCH_NOMATCH;
break;
case '[':
pp = p + 1; /* Copy in case of syntax error in set. */
if(setcharset(&pp, charset)) {
int found = FALSE;
if(!*s)
return CURL_FNMATCH_NOMATCH;
if(charset[(unsigned int)*s])
found = TRUE;
else if(charset[CURLFNM_ALNUM])
found = ISALNUM(*s);
else if(charset[CURLFNM_ALPHA])
found = ISALPHA(*s);
else if(charset[CURLFNM_DIGIT])
found = ISDIGIT(*s);
else if(charset[CURLFNM_XDIGIT])
found = ISXDIGIT(*s);
else if(charset[CURLFNM_PRINT])
found = ISPRINT(*s);
else if(charset[CURLFNM_SPACE])
found = ISSPACE(*s);
else if(charset[CURLFNM_UPPER])
found = ISUPPER(*s);
else if(charset[CURLFNM_LOWER])
found = ISLOWER(*s);
else if(charset[CURLFNM_BLANK])
found = ISBLANK(*s);
else if(charset[CURLFNM_GRAPH])
found = ISGRAPH(*s);
if(charset[CURLFNM_NEGATE])
found = !found;
if(!found)
return CURL_FNMATCH_NOMATCH;
p = pp + 1;
s++;
break;
}
/* Syntax error in set; mismatch! */
return CURL_FNMATCH_NOMATCH;
default:
if(*p++ != *s++)
return CURL_FNMATCH_NOMATCH;
break;
}
}
}
/*
* @unittest: 1307
*/
int Curl_fnmatch(void *ptr, const char *pattern, const char *string)
{
(void)ptr; /* the argument is specified by the curl_fnmatch_callback
prototype, but not used by Curl_fnmatch() */
if(!pattern || !string) {
return CURL_FNMATCH_FAIL;
}
return loop((unsigned char *)pattern, (unsigned char *)string, 2);
}
#else
#include <fnmatch.h>
/*
* @unittest: 1307
*/
int Curl_fnmatch(void *ptr, const char *pattern, const char *string)
{
int rc;
(void)ptr; /* the argument is specified by the curl_fnmatch_callback
prototype, but not used by Curl_fnmatch() */
if(!pattern || !string) {
return CURL_FNMATCH_FAIL;
}
rc = fnmatch(pattern, string, 0);
switch(rc) {
case 0:
return CURL_FNMATCH_MATCH;
case FNM_NOMATCH:
return CURL_FNMATCH_NOMATCH;
default:
return CURL_FNMATCH_FAIL;
}
/* not reached */
}
#endif
#endif /* if FTP is disabled */

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#ifndef HEADER_CURL_FNMATCH_H
#define HEADER_CURL_FNMATCH_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#define CURL_FNMATCH_MATCH 0
#define CURL_FNMATCH_NOMATCH 1
#define CURL_FNMATCH_FAIL 2
/* default pattern matching function
* =================================
* Implemented with recursive backtracking, if you want to use Curl_fnmatch,
* please note that there is not implemented UTF/UNICODE support.
*
* Implemented features:
* '?' notation, does not match UTF characters
* '*' can also work with UTF string
* [a-zA-Z0-9] enumeration support
*
* keywords: alnum, digit, xdigit, alpha, print, blank, lower, graph, space
* and upper (use as "[[:alnum:]]")
*/
int Curl_fnmatch(void *ptr, const char *pattern, const char *string);
#endif /* HEADER_CURL_FNMATCH_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "curl_get_line.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* get_line() makes sure to only return complete whole lines that fit in 'len'
* bytes and end with a newline.
*/
char *Curl_get_line(char *buf, int len, FILE *input)
{
bool partial = FALSE;
while(1) {
char *b = fgets(buf, len, input);
if(b) {
size_t rlen = strlen(b);
if(rlen && (b[rlen-1] == '\n')) {
if(partial) {
partial = FALSE;
continue;
}
return b;
}
/* read a partial, discard the next piece that ends with newline */
partial = TRUE;
}
else
break;
}
return NULL;
}

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#ifndef HEADER_CURL_GET_LINE_H
#define HEADER_CURL_GET_LINE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* get_line() makes sure to only return complete whole lines that fit in 'len'
* bytes and end with a newline. */
char *Curl_get_line(char *buf, int len, FILE *input);
#endif /* HEADER_CURL_GET_LINE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "curl_gethostname.h"
/*
* Curl_gethostname() is a wrapper around gethostname() which allows
* overriding the host name that the function would normally return.
* This capability is used by the test suite to verify exact matching
* of NTLM authentication, which exercises libcurl's MD4 and DES code
* as well as by the SMTP module when a hostname is not provided.
*
* For libcurl debug enabled builds host name overriding takes place
* when environment variable CURL_GETHOSTNAME is set, using the value
* held by the variable to override returned host name.
*
* Note: The function always returns the un-qualified hostname rather
* than being provider dependent.
*
* For libcurl shared library release builds the test suite preloads
* another shared library named libhostname using the LD_PRELOAD
* mechanism which intercepts, and might override, the gethostname()
* function call. In this case a given platform must support the
* LD_PRELOAD mechanism and additionally have environment variable
* CURL_GETHOSTNAME set in order to override the returned host name.
*
* For libcurl static library release builds no overriding takes place.
*/
int Curl_gethostname(char *name, GETHOSTNAME_TYPE_ARG2 namelen)
{
#ifndef HAVE_GETHOSTNAME
/* Allow compilation and return failure when unavailable */
(void) name;
(void) namelen;
return -1;
#else
int err;
char *dot;
#ifdef DEBUGBUILD
/* Override host name when environment variable CURL_GETHOSTNAME is set */
const char *force_hostname = getenv("CURL_GETHOSTNAME");
if(force_hostname) {
strncpy(name, force_hostname, namelen);
err = 0;
}
else {
name[0] = '\0';
err = gethostname(name, namelen);
}
#else /* DEBUGBUILD */
/* The call to system's gethostname() might get intercepted by the
libhostname library when libcurl is built as a non-debug shared
library when running the test suite. */
name[0] = '\0';
err = gethostname(name, namelen);
#endif
name[namelen - 1] = '\0';
if(err)
return err;
/* Truncate domain, leave only machine name */
dot = strchr(name, '.');
if(dot)
*dot = '\0';
return 0;
#endif
}

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#ifndef HEADER_CURL_GETHOSTNAME_H
#define HEADER_CURL_GETHOSTNAME_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* Hostname buffer size */
#define HOSTNAME_MAX 1024
/* This returns the local machine's un-qualified hostname */
int Curl_gethostname(char *name, GETHOSTNAME_TYPE_ARG2 namelen);
#endif /* HEADER_CURL_GETHOSTNAME_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2011 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_GSSAPI
#include "curl_gssapi.h"
#include "sendf.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
static char spnego_oid_bytes[] = "\x2b\x06\x01\x05\x05\x02";
gss_OID_desc Curl_spnego_mech_oid = { 6, &spnego_oid_bytes };
static char krb5_oid_bytes[] = "\x2a\x86\x48\x86\xf7\x12\x01\x02\x02";
gss_OID_desc Curl_krb5_mech_oid = { 9, &krb5_oid_bytes };
OM_uint32 Curl_gss_init_sec_context(
struct Curl_easy *data,
OM_uint32 *minor_status,
gss_ctx_id_t *context,
gss_name_t target_name,
gss_OID mech_type,
gss_channel_bindings_t input_chan_bindings,
gss_buffer_t input_token,
gss_buffer_t output_token,
const bool mutual_auth,
OM_uint32 *ret_flags)
{
OM_uint32 req_flags = GSS_C_REPLAY_FLAG;
if(mutual_auth)
req_flags |= GSS_C_MUTUAL_FLAG;
if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_POLICY_FLAG) {
#ifdef GSS_C_DELEG_POLICY_FLAG
req_flags |= GSS_C_DELEG_POLICY_FLAG;
#else
infof(data, "warning: support for CURLGSSAPI_DELEGATION_POLICY_FLAG not "
"compiled in\n");
#endif
}
if(data->set.gssapi_delegation & CURLGSSAPI_DELEGATION_FLAG)
req_flags |= GSS_C_DELEG_FLAG;
return gss_init_sec_context(minor_status,
GSS_C_NO_CREDENTIAL, /* cred_handle */
context,
target_name,
mech_type,
req_flags,
0, /* time_req */
input_chan_bindings,
input_token,
NULL, /* actual_mech_type */
output_token,
ret_flags,
NULL /* time_rec */);
}
#define GSS_LOG_BUFFER_LEN 1024
static size_t display_gss_error(OM_uint32 status, int type,
char *buf, size_t len) {
OM_uint32 maj_stat;
OM_uint32 min_stat;
OM_uint32 msg_ctx = 0;
gss_buffer_desc status_string;
do {
maj_stat = gss_display_status(&min_stat,
status,
type,
GSS_C_NO_OID,
&msg_ctx,
&status_string);
if(GSS_LOG_BUFFER_LEN > len + status_string.length + 3) {
len += msnprintf(buf + len, GSS_LOG_BUFFER_LEN - len,
"%.*s. ", (int)status_string.length,
(char *)status_string.value);
}
gss_release_buffer(&min_stat, &status_string);
} while(!GSS_ERROR(maj_stat) && msg_ctx != 0);
return len;
}
/*
* Curl_gss_log_error()
*
* This is used to log a GSS-API error status.
*
* Parameters:
*
* data [in] - The session handle.
* prefix [in] - The prefix of the log message.
* major [in] - The major status code.
* minor [in] - The minor status code.
*/
void Curl_gss_log_error(struct Curl_easy *data, const char *prefix,
OM_uint32 major, OM_uint32 minor)
{
char buf[GSS_LOG_BUFFER_LEN];
size_t len = 0;
if(major != GSS_S_FAILURE)
len = display_gss_error(major, GSS_C_GSS_CODE, buf, len);
display_gss_error(minor, GSS_C_MECH_CODE, buf, len);
infof(data, "%s%s\n", prefix, buf);
}
#endif /* HAVE_GSSAPI */

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#ifndef HEADER_CURL_GSSAPI_H
#define HEADER_CURL_GSSAPI_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2011 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "urldata.h"
#ifdef HAVE_GSSAPI
extern gss_OID_desc Curl_spnego_mech_oid;
extern gss_OID_desc Curl_krb5_mech_oid;
/* Common method for using GSS-API */
OM_uint32 Curl_gss_init_sec_context(
struct Curl_easy *data,
OM_uint32 *minor_status,
gss_ctx_id_t *context,
gss_name_t target_name,
gss_OID mech_type,
gss_channel_bindings_t input_chan_bindings,
gss_buffer_t input_token,
gss_buffer_t output_token,
const bool mutual_auth,
OM_uint32 *ret_flags);
/* Helper to log a GSS-API error status */
void Curl_gss_log_error(struct Curl_easy *data, const char *prefix,
OM_uint32 major, OM_uint32 minor);
/* Provide some definitions missing in old headers */
#ifdef HAVE_OLD_GSSMIT
#define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name
#define NCOMPAT 1
#endif
/* Define our privacy and integrity protection values */
#define GSSAUTH_P_NONE 1
#define GSSAUTH_P_INTEGRITY 2
#define GSSAUTH_P_PRIVACY 4
#endif /* HAVE_GSSAPI */
#endif /* HEADER_CURL_GSSAPI_H */

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#ifndef HEADER_CURL_HMAC_H
#define HEADER_CURL_HMAC_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_CRYPTO_AUTH
typedef void (* HMAC_hinit_func)(void *context);
typedef void (* HMAC_hupdate_func)(void *context,
const unsigned char *data,
unsigned int len);
typedef void (* HMAC_hfinal_func)(unsigned char *result, void *context);
/* Per-hash function HMAC parameters. */
typedef struct {
HMAC_hinit_func hmac_hinit; /* Initialize context procedure. */
HMAC_hupdate_func hmac_hupdate; /* Update context with data. */
HMAC_hfinal_func hmac_hfinal; /* Get final result procedure. */
unsigned int hmac_ctxtsize; /* Context structure size. */
unsigned int hmac_maxkeylen; /* Maximum key length (bytes). */
unsigned int hmac_resultlen; /* Result length (bytes). */
} HMAC_params;
/* HMAC computation context. */
typedef struct {
const HMAC_params *hmac_hash; /* Hash function definition. */
void *hmac_hashctxt1; /* Hash function context 1. */
void *hmac_hashctxt2; /* Hash function context 2. */
} HMAC_context;
/* Prototypes. */
HMAC_context * Curl_HMAC_init(const HMAC_params *hashparams,
const unsigned char *key,
unsigned int keylen);
int Curl_HMAC_update(HMAC_context *context,
const unsigned char *data,
unsigned int len);
int Curl_HMAC_final(HMAC_context *context, unsigned char *result);
#endif
#endif /* HEADER_CURL_HMAC_H */

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#ifndef HEADER_CURL_LDAP_H
#define HEADER_CURL_LDAP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_LDAP
extern const struct Curl_handler Curl_handler_ldap;
#if !defined(CURL_DISABLE_LDAPS) && \
((defined(USE_OPENLDAP) && defined(USE_SSL)) || \
(!defined(USE_OPENLDAP) && defined(HAVE_LDAP_SSL)))
extern const struct Curl_handler Curl_handler_ldaps;
#endif
#endif
#endif /* HEADER_CURL_LDAP_H */

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#ifndef HEADER_CURL_MD4_H
#define HEADER_CURL_MD4_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NSS) || defined(USE_OS400CRYPTO) || \
(defined(USE_OPENSSL) && defined(OPENSSL_NO_MD4)) || \
(defined(USE_MBEDTLS) && !defined(MBEDTLS_MD4_C))
void Curl_md4it(unsigned char *output, const unsigned char *input, size_t len);
#endif /* defined(USE_NSS) || defined(USE_OS400CRYPTO) ||
(defined(USE_OPENSSL) && defined(OPENSSL_NO_MD4)) ||
(defined(USE_MBEDTLS) && !defined(MBEDTLS_MD4_C)) */
#endif /* HEADER_CURL_MD4_H */

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#ifndef HEADER_CURL_MD5_H
#define HEADER_CURL_MD5_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_CRYPTO_AUTH
#include "curl_hmac.h"
#define MD5_DIGEST_LEN 16
typedef void (* Curl_MD5_init_func)(void *context);
typedef void (* Curl_MD5_update_func)(void *context,
const unsigned char *data,
unsigned int len);
typedef void (* Curl_MD5_final_func)(unsigned char *result, void *context);
typedef struct {
Curl_MD5_init_func md5_init_func; /* Initialize context procedure */
Curl_MD5_update_func md5_update_func; /* Update context with data */
Curl_MD5_final_func md5_final_func; /* Get final result procedure */
unsigned int md5_ctxtsize; /* Context structure size */
unsigned int md5_resultlen; /* Result length (bytes) */
} MD5_params;
typedef struct {
const MD5_params *md5_hash; /* Hash function definition */
void *md5_hashctx; /* Hash function context */
} MD5_context;
extern const MD5_params Curl_DIGEST_MD5[1];
extern const HMAC_params Curl_HMAC_MD5[1];
void Curl_md5it(unsigned char *output,
const unsigned char *input);
MD5_context * Curl_MD5_init(const MD5_params *md5params);
CURLcode Curl_MD5_update(MD5_context *context,
const unsigned char *data,
unsigned int len);
CURLcode Curl_MD5_final(MD5_context *context, unsigned char *result);
#endif
#endif /* HEADER_CURL_MD5_H */

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#ifndef HEADER_CURL_MEMORY_H
#define HEADER_CURL_MEMORY_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Nasty internal details ahead...
*
* File curl_memory.h must be included by _all_ *.c source files
* that use memory related functions strdup, malloc, calloc, realloc
* or free, and given source file is used to build libcurl library.
* It should be included immediately before memdebug.h as the last files
* included to avoid undesired interaction with other memory function
* headers in dependent libraries.
*
* There is nearly no exception to above rule. All libcurl source
* files in 'lib' subdirectory as well as those living deep inside
* 'packages' subdirectories and linked together in order to build
* libcurl library shall follow it.
*
* File lib/strdup.c is an exception, given that it provides a strdup
* clone implementation while using malloc. Extra care needed inside
* this one.
*
* The need for curl_memory.h inclusion is due to libcurl's feature
* of allowing library user to provide memory replacement functions,
* memory callbacks, at runtime with curl_global_init_mem()
*
* Any *.c source file used to build libcurl library that does not
* include curl_memory.h and uses any memory function of the five
* mentioned above will compile without any indication, but it will
* trigger weird memory related issues at runtime.
*
* OTOH some source files from 'lib' subdirectory may additionally be
* used directly as source code when using some curlx_ functions by
* third party programs that don't even use libcurl at all. When using
* these source files in this way it is necessary these are compiled
* with CURLX_NO_MEMORY_CALLBACKS defined, in order to ensure that no
* attempt of calling libcurl's memory callbacks is done from code
* which can not use this machinery.
*
* Notice that libcurl's 'memory tracking' system works chaining into
* the memory callback machinery. This implies that when compiling
* 'lib' source files with CURLX_NO_MEMORY_CALLBACKS defined this file
* disengages usage of libcurl's 'memory tracking' system, defining
* MEMDEBUG_NODEFINES and overriding CURLDEBUG purpose.
*
* CURLX_NO_MEMORY_CALLBACKS takes precedence over CURLDEBUG. This is
* done in order to allow building a 'memory tracking' enabled libcurl
* and at the same time allow building programs which do not use it.
*
* Programs and libraries in 'tests' subdirectories have specific
* purposes and needs, and as such each one will use whatever fits
* best, depending additionally whether it links with libcurl or not.
*
* Caveat emptor. Proper curlx_* separation is a work in progress
* the same as CURLX_NO_MEMORY_CALLBACKS usage, some adjustments may
* still be required. IOW don't use them yet, there are sharp edges.
*/
#ifdef HEADER_CURL_MEMDEBUG_H
#error "Header memdebug.h shall not be included before curl_memory.h"
#endif
#ifndef CURLX_NO_MEMORY_CALLBACKS
#ifndef CURL_DID_MEMORY_FUNC_TYPEDEFS /* only if not already done */
/*
* The following memory function replacement typedef's are COPIED from
* curl/curl.h and MUST match the originals. We copy them to avoid having to
* include curl/curl.h here. We avoid that include since it includes stdio.h
* and other headers that may get messed up with defines done here.
*/
typedef void *(*curl_malloc_callback)(size_t size);
typedef void (*curl_free_callback)(void *ptr);
typedef void *(*curl_realloc_callback)(void *ptr, size_t size);
typedef char *(*curl_strdup_callback)(const char *str);
typedef void *(*curl_calloc_callback)(size_t nmemb, size_t size);
#define CURL_DID_MEMORY_FUNC_TYPEDEFS
#endif
extern curl_malloc_callback Curl_cmalloc;
extern curl_free_callback Curl_cfree;
extern curl_realloc_callback Curl_crealloc;
extern curl_strdup_callback Curl_cstrdup;
extern curl_calloc_callback Curl_ccalloc;
#if defined(WIN32) && defined(UNICODE)
extern curl_wcsdup_callback Curl_cwcsdup;
#endif
#ifndef CURLDEBUG
/*
* libcurl's 'memory tracking' system defines strdup, malloc, calloc,
* realloc and free, along with others, in memdebug.h in a different
* way although still using memory callbacks forward declared above.
* When using the 'memory tracking' system (CURLDEBUG defined) we do
* not define here the five memory functions given that definitions
* from memdebug.h are the ones that shall be used.
*/
#undef strdup
#define strdup(ptr) Curl_cstrdup(ptr)
#undef malloc
#define malloc(size) Curl_cmalloc(size)
#undef calloc
#define calloc(nbelem,size) Curl_ccalloc(nbelem, size)
#undef realloc
#define realloc(ptr,size) Curl_crealloc(ptr, size)
#undef free
#define free(ptr) Curl_cfree(ptr)
#ifdef WIN32
# ifdef UNICODE
# undef wcsdup
# define wcsdup(ptr) Curl_cwcsdup(ptr)
# undef _wcsdup
# define _wcsdup(ptr) Curl_cwcsdup(ptr)
# undef _tcsdup
# define _tcsdup(ptr) Curl_cwcsdup(ptr)
# else
# undef _tcsdup
# define _tcsdup(ptr) Curl_cstrdup(ptr)
# endif
#endif
#endif /* CURLDEBUG */
#else /* CURLX_NO_MEMORY_CALLBACKS */
#ifndef MEMDEBUG_NODEFINES
#define MEMDEBUG_NODEFINES
#endif
#endif /* CURLX_NO_MEMORY_CALLBACKS */
#endif /* HEADER_CURL_MEMORY_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "curl_memrchr.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#ifndef HAVE_MEMRCHR
/*
* Curl_memrchr()
*
* Our memrchr() function clone for systems which lack this function. The
* memrchr() function is like the memchr() function, except that it searches
* backwards from the end of the n bytes pointed to by s instead of forward
* from the beginning.
*/
void *
Curl_memrchr(const void *s, int c, size_t n)
{
if(n > 0) {
const unsigned char *p = s;
const unsigned char *q = s;
p += n - 1;
while(p >= q) {
if(*p == (unsigned char)c)
return (void *)p;
p--;
}
}
return NULL;
}
#endif /* HAVE_MEMRCHR */

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#ifndef HEADER_CURL_MEMRCHR_H
#define HEADER_CURL_MEMRCHR_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef HAVE_MEMRCHR
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#else /* HAVE_MEMRCHR */
void *Curl_memrchr(const void *s, int c, size_t n);
#define memrchr(x,y,z) Curl_memrchr((x),(y),(z))
#endif /* HAVE_MEMRCHR */
#endif /* HEADER_CURL_MEMRCHR_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#if defined(USE_WIN32_IDN) || ((defined(USE_WINDOWS_SSPI) || \
defined(USE_WIN32_LDAP)) && defined(UNICODE))
/*
* MultiByte conversions using Windows kernel32 library.
*/
#include "curl_multibyte.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
wchar_t *Curl_convert_UTF8_to_wchar(const char *str_utf8)
{
wchar_t *str_w = NULL;
if(str_utf8) {
int str_w_len = MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS,
str_utf8, -1, NULL, 0);
if(str_w_len > 0) {
str_w = malloc(str_w_len * sizeof(wchar_t));
if(str_w) {
if(MultiByteToWideChar(CP_UTF8, 0, str_utf8, -1, str_w,
str_w_len) == 0) {
free(str_w);
return NULL;
}
}
}
}
return str_w;
}
char *Curl_convert_wchar_to_UTF8(const wchar_t *str_w)
{
char *str_utf8 = NULL;
if(str_w) {
int bytes = WideCharToMultiByte(CP_UTF8, 0, str_w, -1,
NULL, 0, NULL, NULL);
if(bytes > 0) {
str_utf8 = malloc(bytes);
if(str_utf8) {
if(WideCharToMultiByte(CP_UTF8, 0, str_w, -1, str_utf8, bytes,
NULL, NULL) == 0) {
free(str_utf8);
return NULL;
}
}
}
}
return str_utf8;
}
#endif /* USE_WIN32_IDN || ((USE_WINDOWS_SSPI || USE_WIN32_LDAP) && UNICODE) */

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#ifndef HEADER_CURL_MULTIBYTE_H
#define HEADER_CURL_MULTIBYTE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_WIN32_IDN) || ((defined(USE_WINDOWS_SSPI) || \
defined(USE_WIN32_LDAP)) && defined(UNICODE))
/*
* MultiByte conversions using Windows kernel32 library.
*/
wchar_t *Curl_convert_UTF8_to_wchar(const char *str_utf8);
char *Curl_convert_wchar_to_UTF8(const wchar_t *str_w);
#endif /* USE_WIN32_IDN || ((USE_WINDOWS_SSPI || USE_WIN32_LDAP) && UNICODE) */
#if defined(USE_WIN32_IDN) || defined(USE_WINDOWS_SSPI) || \
defined(USE_WIN32_LDAP)
/*
* Macros Curl_convert_UTF8_to_tchar(), Curl_convert_tchar_to_UTF8()
* and Curl_unicodefree() main purpose is to minimize the number of
* preprocessor conditional directives needed by code using these
* to differentiate UNICODE from non-UNICODE builds.
*
* When building with UNICODE defined, this two macros
* Curl_convert_UTF8_to_tchar() and Curl_convert_tchar_to_UTF8()
* return a pointer to a newly allocated memory area holding result.
* When the result is no longer needed, allocated memory is intended
* to be free'ed with Curl_unicodefree().
*
* When building without UNICODE defined, this macros
* Curl_convert_UTF8_to_tchar() and Curl_convert_tchar_to_UTF8()
* return the pointer received as argument. Curl_unicodefree() does
* no actual free'ing of this pointer it is simply set to NULL.
*/
#ifdef UNICODE
#define Curl_convert_UTF8_to_tchar(ptr) Curl_convert_UTF8_to_wchar((ptr))
#define Curl_convert_tchar_to_UTF8(ptr) Curl_convert_wchar_to_UTF8((ptr))
#define Curl_unicodefree(ptr) \
do {if((ptr)) {free((ptr)); (ptr) = NULL;}} WHILE_FALSE
typedef union {
unsigned short *tchar_ptr;
const unsigned short *const_tchar_ptr;
unsigned short *tbyte_ptr;
const unsigned short *const_tbyte_ptr;
} xcharp_u;
#else
#define Curl_convert_UTF8_to_tchar(ptr) (ptr)
#define Curl_convert_tchar_to_UTF8(ptr) (ptr)
#define Curl_unicodefree(ptr) \
do {(ptr) = NULL;} WHILE_FALSE
typedef union {
char *tchar_ptr;
const char *const_tchar_ptr;
unsigned char *tbyte_ptr;
const unsigned char *const_tbyte_ptr;
} xcharp_u;
#endif /* UNICODE */
#endif /* USE_WIN32_IDN || USE_WINDOWS_SSPI || USE_WIN32_LDAP */
#endif /* HEADER_CURL_MULTIBYTE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NTLM)
/*
* NTLM details:
*
* https://davenport.sourceforge.io/ntlm.html
* https://www.innovation.ch/java/ntlm.html
*/
/* Please keep the SSL backend-specific #if branches in this order:
1. USE_OPENSSL
2. USE_GNUTLS_NETTLE
3. USE_GNUTLS
4. USE_NSS
5. USE_MBEDTLS
6. USE_SECTRANSP
7. USE_OS400CRYPTO
8. USE_WIN32_CRYPTO
This ensures that:
- the same SSL branch gets activated throughout this source
file even if multiple backends are enabled at the same time.
- OpenSSL and NSS have higher priority than Windows Crypt, due
to issues with the latter supporting NTLM2Session responses
in NTLM type-3 messages.
*/
#if !defined(USE_WINDOWS_SSPI) || defined(USE_WIN32_CRYPTO)
#ifdef USE_OPENSSL
# include <openssl/des.h>
# ifndef OPENSSL_NO_MD4
# include <openssl/md4.h>
# else
# include "curl_md4.h"
# endif
# include <openssl/md5.h>
# include <openssl/ssl.h>
# include <openssl/rand.h>
# if (OPENSSL_VERSION_NUMBER < 0x00907001L)
# define DES_key_schedule des_key_schedule
# define DES_cblock des_cblock
# define DES_set_odd_parity des_set_odd_parity
# define DES_set_key des_set_key
# define DES_ecb_encrypt des_ecb_encrypt
# define DESKEY(x) x
# define DESKEYARG(x) x
# else
# define DESKEYARG(x) *x
# define DESKEY(x) &x
# endif
#elif defined(USE_GNUTLS_NETTLE)
# include <nettle/des.h>
# include <nettle/md4.h>
#elif defined(USE_GNUTLS)
# include <gcrypt.h>
# define MD5_DIGEST_LENGTH 16
# define MD4_DIGEST_LENGTH 16
#elif defined(USE_NSS)
# include <nss.h>
# include <pk11pub.h>
# include <hasht.h>
# include "curl_md4.h"
# define MD5_DIGEST_LENGTH MD5_LENGTH
#elif defined(USE_MBEDTLS)
# include <mbedtls/des.h>
# include <mbedtls/md4.h>
# if !defined(MBEDTLS_MD4_C)
# include "curl_md4.h"
# endif
#elif defined(USE_SECTRANSP)
# include <CommonCrypto/CommonCryptor.h>
# include <CommonCrypto/CommonDigest.h>
#elif defined(USE_OS400CRYPTO)
# include "cipher.mih" /* mih/cipher */
# include "curl_md4.h"
#elif defined(USE_WIN32_CRYPTO)
# include <wincrypt.h>
#else
# error "Can't compile NTLM support without a crypto library."
#endif
#include "urldata.h"
#include "non-ascii.h"
#include "strcase.h"
#include "curl_ntlm_core.h"
#include "curl_md5.h"
#include "curl_hmac.h"
#include "warnless.h"
#include "curl_endian.h"
#include "curl_des.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define NTLM_HMAC_MD5_LEN (16)
#define NTLMv2_BLOB_SIGNATURE "\x01\x01\x00\x00"
#define NTLMv2_BLOB_LEN (44 -16 + ntlm->target_info_len + 4)
/*
* Turns a 56-bit key into being 64-bit wide.
*/
static void extend_key_56_to_64(const unsigned char *key_56, char *key)
{
key[0] = key_56[0];
key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1));
key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2));
key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3));
key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4));
key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5));
key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6));
key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF);
}
#ifdef USE_OPENSSL
/*
* Turns a 56 bit key into the 64 bit, odd parity key and sets the key. The
* key schedule ks is also set.
*/
static void setup_des_key(const unsigned char *key_56,
DES_key_schedule DESKEYARG(ks))
{
DES_cblock key;
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, (char *) &key);
/* Set the key parity to odd */
DES_set_odd_parity(&key);
/* Set the key */
DES_set_key(&key, ks);
}
#elif defined(USE_GNUTLS_NETTLE)
static void setup_des_key(const unsigned char *key_56,
struct des_ctx *des)
{
char key[8];
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
/* Set the key parity to odd */
Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
/* Set the key */
des_set_key(des, (const uint8_t *) key);
}
#elif defined(USE_GNUTLS)
/*
* Turns a 56 bit key into the 64 bit, odd parity key and sets the key.
*/
static void setup_des_key(const unsigned char *key_56,
gcry_cipher_hd_t *des)
{
char key[8];
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
/* Set the key parity to odd */
Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
/* Set the key */
gcry_cipher_setkey(*des, key, sizeof(key));
}
#elif defined(USE_NSS)
/*
* Expands a 56 bit key KEY_56 to 64 bit and encrypts 64 bit of data, using
* the expanded key. The caller is responsible for giving 64 bit of valid
* data is IN and (at least) 64 bit large buffer as OUT.
*/
static bool encrypt_des(const unsigned char *in, unsigned char *out,
const unsigned char *key_56)
{
const CK_MECHANISM_TYPE mech = CKM_DES_ECB; /* DES cipher in ECB mode */
PK11SlotInfo *slot = NULL;
char key[8]; /* expanded 64 bit key */
SECItem key_item;
PK11SymKey *symkey = NULL;
SECItem *param = NULL;
PK11Context *ctx = NULL;
int out_len; /* not used, required by NSS */
bool rv = FALSE;
/* use internal slot for DES encryption (requires NSS to be initialized) */
slot = PK11_GetInternalKeySlot();
if(!slot)
return FALSE;
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
/* Set the key parity to odd */
Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
/* Import the key */
key_item.data = (unsigned char *)key;
key_item.len = sizeof(key);
symkey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_ENCRYPT,
&key_item, NULL);
if(!symkey)
goto fail;
/* Create the DES encryption context */
param = PK11_ParamFromIV(mech, /* no IV in ECB mode */ NULL);
if(!param)
goto fail;
ctx = PK11_CreateContextBySymKey(mech, CKA_ENCRYPT, symkey, param);
if(!ctx)
goto fail;
/* Perform the encryption */
if(SECSuccess == PK11_CipherOp(ctx, out, &out_len, /* outbuflen */ 8,
(unsigned char *)in, /* inbuflen */ 8)
&& SECSuccess == PK11_Finalize(ctx))
rv = /* all OK */ TRUE;
fail:
/* cleanup */
if(ctx)
PK11_DestroyContext(ctx, PR_TRUE);
if(symkey)
PK11_FreeSymKey(symkey);
if(param)
SECITEM_FreeItem(param, PR_TRUE);
PK11_FreeSlot(slot);
return rv;
}
#elif defined(USE_MBEDTLS)
static bool encrypt_des(const unsigned char *in, unsigned char *out,
const unsigned char *key_56)
{
mbedtls_des_context ctx;
char key[8];
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
/* Set the key parity to odd */
mbedtls_des_key_set_parity((unsigned char *) key);
/* Perform the encryption */
mbedtls_des_init(&ctx);
mbedtls_des_setkey_enc(&ctx, (unsigned char *) key);
return mbedtls_des_crypt_ecb(&ctx, in, out) == 0;
}
#elif defined(USE_SECTRANSP)
static bool encrypt_des(const unsigned char *in, unsigned char *out,
const unsigned char *key_56)
{
char key[8];
size_t out_len;
CCCryptorStatus err;
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
/* Set the key parity to odd */
Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
/* Perform the encryption */
err = CCCrypt(kCCEncrypt, kCCAlgorithmDES, kCCOptionECBMode, key,
kCCKeySizeDES, NULL, in, 8 /* inbuflen */, out,
8 /* outbuflen */, &out_len);
return err == kCCSuccess;
}
#elif defined(USE_OS400CRYPTO)
static bool encrypt_des(const unsigned char *in, unsigned char *out,
const unsigned char *key_56)
{
char key[8];
_CIPHER_Control_T ctl;
/* Setup the cipher control structure */
ctl.Func_ID = ENCRYPT_ONLY;
ctl.Data_Len = sizeof(key);
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, ctl.Crypto_Key);
/* Set the key parity to odd */
Curl_des_set_odd_parity((unsigned char *) ctl.Crypto_Key, ctl.Data_Len);
/* Perform the encryption */
_CIPHER((_SPCPTR *) &out, &ctl, (_SPCPTR *) &in);
return TRUE;
}
#elif defined(USE_WIN32_CRYPTO)
static bool encrypt_des(const unsigned char *in, unsigned char *out,
const unsigned char *key_56)
{
HCRYPTPROV hprov;
HCRYPTKEY hkey;
struct {
BLOBHEADER hdr;
unsigned int len;
char key[8];
} blob;
DWORD len = 8;
/* Acquire the crypto provider */
if(!CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT))
return FALSE;
/* Setup the key blob structure */
memset(&blob, 0, sizeof(blob));
blob.hdr.bType = PLAINTEXTKEYBLOB;
blob.hdr.bVersion = 2;
blob.hdr.aiKeyAlg = CALG_DES;
blob.len = sizeof(blob.key);
/* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, blob.key);
/* Set the key parity to odd */
Curl_des_set_odd_parity((unsigned char *) blob.key, sizeof(blob.key));
/* Import the key */
if(!CryptImportKey(hprov, (BYTE *) &blob, sizeof(blob), 0, 0, &hkey)) {
CryptReleaseContext(hprov, 0);
return FALSE;
}
memcpy(out, in, 8);
/* Perform the encryption */
CryptEncrypt(hkey, 0, FALSE, 0, out, &len, len);
CryptDestroyKey(hkey);
CryptReleaseContext(hprov, 0);
return TRUE;
}
#endif /* defined(USE_WIN32_CRYPTO) */
/*
* takes a 21 byte array and treats it as 3 56-bit DES keys. The
* 8 byte plaintext is encrypted with each key and the resulting 24
* bytes are stored in the results array.
*/
void Curl_ntlm_core_lm_resp(const unsigned char *keys,
const unsigned char *plaintext,
unsigned char *results)
{
#ifdef USE_OPENSSL
DES_key_schedule ks;
setup_des_key(keys, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) results,
DESKEY(ks), DES_ENCRYPT);
setup_des_key(keys + 7, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 8),
DESKEY(ks), DES_ENCRYPT);
setup_des_key(keys + 14, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 16),
DESKEY(ks), DES_ENCRYPT);
#elif defined(USE_GNUTLS_NETTLE)
struct des_ctx des;
setup_des_key(keys, &des);
des_encrypt(&des, 8, results, plaintext);
setup_des_key(keys + 7, &des);
des_encrypt(&des, 8, results + 8, plaintext);
setup_des_key(keys + 14, &des);
des_encrypt(&des, 8, results + 16, plaintext);
#elif defined(USE_GNUTLS)
gcry_cipher_hd_t des;
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys, &des);
gcry_cipher_encrypt(des, results, 8, plaintext, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys + 7, &des);
gcry_cipher_encrypt(des, results + 8, 8, plaintext, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys + 14, &des);
gcry_cipher_encrypt(des, results + 16, 8, plaintext, 8);
gcry_cipher_close(des);
#elif defined(USE_NSS) || defined(USE_MBEDTLS) || defined(USE_SECTRANSP) \
|| defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO)
encrypt_des(plaintext, results, keys);
encrypt_des(plaintext, results + 8, keys + 7);
encrypt_des(plaintext, results + 16, keys + 14);
#endif
}
/*
* Set up lanmanager hashed password
*/
CURLcode Curl_ntlm_core_mk_lm_hash(struct Curl_easy *data,
const char *password,
unsigned char *lmbuffer /* 21 bytes */)
{
CURLcode result;
unsigned char pw[14];
static const unsigned char magic[] = {
0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */
};
size_t len = CURLMIN(strlen(password), 14);
Curl_strntoupper((char *)pw, password, len);
memset(&pw[len], 0, 14 - len);
/*
* The LanManager hashed password needs to be created using the
* password in the network encoding not the host encoding.
*/
result = Curl_convert_to_network(data, (char *)pw, 14);
if(result)
return result;
{
/* Create LanManager hashed password. */
#ifdef USE_OPENSSL
DES_key_schedule ks;
setup_des_key(pw, DESKEY(ks));
DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)lmbuffer,
DESKEY(ks), DES_ENCRYPT);
setup_des_key(pw + 7, DESKEY(ks));
DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)(lmbuffer + 8),
DESKEY(ks), DES_ENCRYPT);
#elif defined(USE_GNUTLS_NETTLE)
struct des_ctx des;
setup_des_key(pw, &des);
des_encrypt(&des, 8, lmbuffer, magic);
setup_des_key(pw + 7, &des);
des_encrypt(&des, 8, lmbuffer + 8, magic);
#elif defined(USE_GNUTLS)
gcry_cipher_hd_t des;
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(pw, &des);
gcry_cipher_encrypt(des, lmbuffer, 8, magic, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(pw + 7, &des);
gcry_cipher_encrypt(des, lmbuffer + 8, 8, magic, 8);
gcry_cipher_close(des);
#elif defined(USE_NSS) || defined(USE_MBEDTLS) || defined(USE_SECTRANSP) \
|| defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO)
encrypt_des(magic, lmbuffer, pw);
encrypt_des(magic, lmbuffer + 8, pw + 7);
#endif
memset(lmbuffer + 16, 0, 21 - 16);
}
return CURLE_OK;
}
#ifdef USE_NTRESPONSES
static void ascii_to_unicode_le(unsigned char *dest, const char *src,
size_t srclen)
{
size_t i;
for(i = 0; i < srclen; i++) {
dest[2 * i] = (unsigned char)src[i];
dest[2 * i + 1] = '\0';
}
}
#if defined(USE_NTLM_V2) && !defined(USE_WINDOWS_SSPI)
static void ascii_uppercase_to_unicode_le(unsigned char *dest,
const char *src, size_t srclen)
{
size_t i;
for(i = 0; i < srclen; i++) {
dest[2 * i] = (unsigned char)(Curl_raw_toupper(src[i]));
dest[2 * i + 1] = '\0';
}
}
#endif /* USE_NTLM_V2 && !USE_WINDOWS_SSPI */
/*
* Set up nt hashed passwords
* @unittest: 1600
*/
CURLcode Curl_ntlm_core_mk_nt_hash(struct Curl_easy *data,
const char *password,
unsigned char *ntbuffer /* 21 bytes */)
{
size_t len = strlen(password);
unsigned char *pw;
CURLcode result;
if(len > SIZE_T_MAX/2) /* avoid integer overflow */
return CURLE_OUT_OF_MEMORY;
pw = len ? malloc(len * 2) : strdup("");
if(!pw)
return CURLE_OUT_OF_MEMORY;
ascii_to_unicode_le(pw, password, len);
/*
* The NT hashed password needs to be created using the password in the
* network encoding not the host encoding.
*/
result = Curl_convert_to_network(data, (char *)pw, len * 2);
if(result)
return result;
{
/* Create NT hashed password. */
#ifdef USE_OPENSSL
#if !defined(OPENSSL_NO_MD4)
MD4_CTX MD4pw;
MD4_Init(&MD4pw);
MD4_Update(&MD4pw, pw, 2 * len);
MD4_Final(ntbuffer, &MD4pw);
#else
Curl_md4it(ntbuffer, pw, 2 * len);
#endif
#elif defined(USE_GNUTLS_NETTLE)
struct md4_ctx MD4pw;
md4_init(&MD4pw);
md4_update(&MD4pw, (unsigned int)(2 * len), pw);
md4_digest(&MD4pw, MD4_DIGEST_SIZE, ntbuffer);
#elif defined(USE_GNUTLS)
gcry_md_hd_t MD4pw;
gcry_md_open(&MD4pw, GCRY_MD_MD4, 0);
gcry_md_write(MD4pw, pw, 2 * len);
memcpy(ntbuffer, gcry_md_read(MD4pw, 0), MD4_DIGEST_LENGTH);
gcry_md_close(MD4pw);
#elif defined(USE_NSS)
Curl_md4it(ntbuffer, pw, 2 * len);
#elif defined(USE_MBEDTLS)
#if defined(MBEDTLS_MD4_C)
mbedtls_md4(pw, 2 * len, ntbuffer);
#else
Curl_md4it(ntbuffer, pw, 2 * len);
#endif
#elif defined(USE_SECTRANSP)
(void)CC_MD4(pw, (CC_LONG)(2 * len), ntbuffer);
#elif defined(USE_OS400CRYPTO)
Curl_md4it(ntbuffer, pw, 2 * len);
#elif defined(USE_WIN32_CRYPTO)
HCRYPTPROV hprov;
if(CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_FULL,
CRYPT_VERIFYCONTEXT)) {
HCRYPTHASH hhash;
if(CryptCreateHash(hprov, CALG_MD4, 0, 0, &hhash)) {
DWORD length = 16;
CryptHashData(hhash, pw, (unsigned int)len * 2, 0);
CryptGetHashParam(hhash, HP_HASHVAL, ntbuffer, &length, 0);
CryptDestroyHash(hhash);
}
CryptReleaseContext(hprov, 0);
}
#endif
memset(ntbuffer + 16, 0, 21 - 16);
}
free(pw);
return CURLE_OK;
}
#if defined(USE_NTLM_V2) && !defined(USE_WINDOWS_SSPI)
/* This returns the HMAC MD5 digest */
static CURLcode hmac_md5(const unsigned char *key, unsigned int keylen,
const unsigned char *data, unsigned int datalen,
unsigned char *output)
{
HMAC_context *ctxt = Curl_HMAC_init(Curl_HMAC_MD5, key, keylen);
if(!ctxt)
return CURLE_OUT_OF_MEMORY;
/* Update the digest with the given challenge */
Curl_HMAC_update(ctxt, data, datalen);
/* Finalise the digest */
Curl_HMAC_final(ctxt, output);
return CURLE_OK;
}
/* This creates the NTLMv2 hash by using NTLM hash as the key and Unicode
* (uppercase UserName + Domain) as the data
*/
CURLcode Curl_ntlm_core_mk_ntlmv2_hash(const char *user, size_t userlen,
const char *domain, size_t domlen,
unsigned char *ntlmhash,
unsigned char *ntlmv2hash)
{
/* Unicode representation */
size_t identity_len;
unsigned char *identity;
CURLcode result = CURLE_OK;
/* we do the length checks below separately to avoid integer overflow risk
on extreme data lengths */
if((userlen > SIZE_T_MAX/2) ||
(domlen > SIZE_T_MAX/2) ||
((userlen + domlen) > SIZE_T_MAX/2))
return CURLE_OUT_OF_MEMORY;
identity_len = (userlen + domlen) * 2;
identity = malloc(identity_len);
if(!identity)
return CURLE_OUT_OF_MEMORY;
ascii_uppercase_to_unicode_le(identity, user, userlen);
ascii_to_unicode_le(identity + (userlen << 1), domain, domlen);
result = hmac_md5(ntlmhash, 16, identity, curlx_uztoui(identity_len),
ntlmv2hash);
free(identity);
return result;
}
/*
* Curl_ntlm_core_mk_ntlmv2_resp()
*
* This creates the NTLMv2 response as set in the ntlm type-3 message.
*
* Parameters:
*
* ntlmv2hash [in] - The ntlmv2 hash (16 bytes)
* challenge_client [in] - The client nonce (8 bytes)
* ntlm [in] - The ntlm data struct being used to read TargetInfo
and Server challenge received in the type-2 message
* ntresp [out] - The address where a pointer to newly allocated
* memory holding the NTLMv2 response.
* ntresp_len [out] - The length of the output message.
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_ntlm_core_mk_ntlmv2_resp(unsigned char *ntlmv2hash,
unsigned char *challenge_client,
struct ntlmdata *ntlm,
unsigned char **ntresp,
unsigned int *ntresp_len)
{
/* NTLMv2 response structure :
------------------------------------------------------------------------------
0 HMAC MD5 16 bytes
------BLOB--------------------------------------------------------------------
16 Signature 0x01010000
20 Reserved long (0x00000000)
24 Timestamp LE, 64-bit signed value representing the number of
tenths of a microsecond since January 1, 1601.
32 Client Nonce 8 bytes
40 Unknown 4 bytes
44 Target Info N bytes (from the type-2 message)
44+N Unknown 4 bytes
------------------------------------------------------------------------------
*/
unsigned int len = 0;
unsigned char *ptr = NULL;
unsigned char hmac_output[NTLM_HMAC_MD5_LEN];
curl_off_t tw;
CURLcode result = CURLE_OK;
#if CURL_SIZEOF_CURL_OFF_T < 8
#error "this section needs 64bit support to work"
#endif
/* Calculate the timestamp */
#ifdef DEBUGBUILD
char *force_timestamp = getenv("CURL_FORCETIME");
if(force_timestamp)
tw = CURL_OFF_T_C(11644473600) * 10000000;
else
#endif
tw = ((curl_off_t)time(NULL) + CURL_OFF_T_C(11644473600)) * 10000000;
/* Calculate the response len */
len = NTLM_HMAC_MD5_LEN + NTLMv2_BLOB_LEN;
/* Allocate the response */
ptr = calloc(1, len);
if(!ptr)
return CURLE_OUT_OF_MEMORY;
/* Create the BLOB structure */
msnprintf((char *)ptr + NTLM_HMAC_MD5_LEN, NTLMv2_BLOB_LEN,
"%c%c%c%c" /* NTLMv2_BLOB_SIGNATURE */
"%c%c%c%c", /* Reserved = 0 */
NTLMv2_BLOB_SIGNATURE[0], NTLMv2_BLOB_SIGNATURE[1],
NTLMv2_BLOB_SIGNATURE[2], NTLMv2_BLOB_SIGNATURE[3],
0, 0, 0, 0);
Curl_write64_le(tw, ptr + 24);
memcpy(ptr + 32, challenge_client, 8);
memcpy(ptr + 44, ntlm->target_info, ntlm->target_info_len);
/* Concatenate the Type 2 challenge with the BLOB and do HMAC MD5 */
memcpy(ptr + 8, &ntlm->nonce[0], 8);
result = hmac_md5(ntlmv2hash, NTLM_HMAC_MD5_LEN, ptr + 8,
NTLMv2_BLOB_LEN + 8, hmac_output);
if(result) {
free(ptr);
return result;
}
/* Concatenate the HMAC MD5 output with the BLOB */
memcpy(ptr, hmac_output, NTLM_HMAC_MD5_LEN);
/* Return the response */
*ntresp = ptr;
*ntresp_len = len;
return result;
}
/*
* Curl_ntlm_core_mk_lmv2_resp()
*
* This creates the LMv2 response as used in the ntlm type-3 message.
*
* Parameters:
*
* ntlmv2hash [in] - The ntlmv2 hash (16 bytes)
* challenge_client [in] - The client nonce (8 bytes)
* challenge_client [in] - The server challenge (8 bytes)
* lmresp [out] - The LMv2 response (24 bytes)
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_ntlm_core_mk_lmv2_resp(unsigned char *ntlmv2hash,
unsigned char *challenge_client,
unsigned char *challenge_server,
unsigned char *lmresp)
{
unsigned char data[16];
unsigned char hmac_output[16];
CURLcode result = CURLE_OK;
memcpy(&data[0], challenge_server, 8);
memcpy(&data[8], challenge_client, 8);
result = hmac_md5(ntlmv2hash, 16, &data[0], 16, hmac_output);
if(result)
return result;
/* Concatenate the HMAC MD5 output with the client nonce */
memcpy(lmresp, hmac_output, 16);
memcpy(lmresp + 16, challenge_client, 8);
return result;
}
#endif /* USE_NTLM_V2 && !USE_WINDOWS_SSPI */
#endif /* USE_NTRESPONSES */
#endif /* !USE_WINDOWS_SSPI || USE_WIN32_CRYPTO */
#endif /* USE_NTLM */

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#ifndef HEADER_CURL_NTLM_CORE_H
#define HEADER_CURL_NTLM_CORE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_NTLM)
/* If NSS is the first available SSL backend (see order in curl_ntlm_core.c)
then it must be initialized to be used by NTLM. */
#if !defined(USE_OPENSSL) && \
!defined(USE_GNUTLS_NETTLE) && \
!defined(USE_GNUTLS) && \
defined(USE_NSS)
#define NTLM_NEEDS_NSS_INIT
#endif
#if !defined(USE_WINDOWS_SSPI) || defined(USE_WIN32_CRYPTO)
#ifdef USE_OPENSSL
# include <openssl/ssl.h>
#endif
/* Define USE_NTRESPONSES in order to make the type-3 message include
* the NT response message. */
#define USE_NTRESPONSES
/* Define USE_NTLM2SESSION in order to make the type-3 message include the
NTLM2Session response message, requires USE_NTRESPONSES defined to 1 and a
Crypto engine that we have curl_ssl_md5sum() for. */
#if defined(USE_NTRESPONSES) && !defined(USE_WIN32_CRYPTO)
#define USE_NTLM2SESSION
#endif
/* Define USE_NTLM_V2 in order to allow the type-3 message to include the
LMv2 and NTLMv2 response messages, requires USE_NTRESPONSES defined to 1
and support for 64-bit integers. */
#if defined(USE_NTRESPONSES) && (CURL_SIZEOF_CURL_OFF_T > 4)
#define USE_NTLM_V2
#endif
void Curl_ntlm_core_lm_resp(const unsigned char *keys,
const unsigned char *plaintext,
unsigned char *results);
CURLcode Curl_ntlm_core_mk_lm_hash(struct Curl_easy *data,
const char *password,
unsigned char *lmbuffer /* 21 bytes */);
#ifdef USE_NTRESPONSES
CURLcode Curl_ntlm_core_mk_nt_hash(struct Curl_easy *data,
const char *password,
unsigned char *ntbuffer /* 21 bytes */);
#if defined(USE_NTLM_V2) && !defined(USE_WINDOWS_SSPI)
CURLcode Curl_hmac_md5(const unsigned char *key, unsigned int keylen,
const unsigned char *data, unsigned int datalen,
unsigned char *output);
CURLcode Curl_ntlm_core_mk_ntlmv2_hash(const char *user, size_t userlen,
const char *domain, size_t domlen,
unsigned char *ntlmhash,
unsigned char *ntlmv2hash);
CURLcode Curl_ntlm_core_mk_ntlmv2_resp(unsigned char *ntlmv2hash,
unsigned char *challenge_client,
struct ntlmdata *ntlm,
unsigned char **ntresp,
unsigned int *ntresp_len);
CURLcode Curl_ntlm_core_mk_lmv2_resp(unsigned char *ntlmv2hash,
unsigned char *challenge_client,
unsigned char *challenge_server,
unsigned char *lmresp);
#endif /* USE_NTLM_V2 && !USE_WINDOWS_SSPI */
#endif /* USE_NTRESPONSES */
#endif /* !USE_WINDOWS_SSPI || USE_WIN32_CRYPTO */
#endif /* USE_NTLM */
#endif /* HEADER_CURL_NTLM_CORE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
defined(NTLM_WB_ENABLED)
/*
* NTLM details:
*
* https://davenport.sourceforge.io/ntlm.html
* https://www.innovation.ch/java/ntlm.html
*/
#define DEBUG_ME 0
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#ifdef HAVE_PWD_H
#include <pwd.h>
#endif
#include "urldata.h"
#include "sendf.h"
#include "select.h"
#include "vauth/ntlm.h"
#include "curl_ntlm_core.h"
#include "curl_ntlm_wb.h"
#include "url.h"
#include "strerror.h"
#include "strdup.h"
#include "strcase.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#if DEBUG_ME
# define DEBUG_OUT(x) x
#else
# define DEBUG_OUT(x) Curl_nop_stmt
#endif
/* Portable 'sclose_nolog' used only in child process instead of 'sclose'
to avoid fooling the socket leak detector */
#if defined(HAVE_CLOSESOCKET)
# define sclose_nolog(x) closesocket((x))
#elif defined(HAVE_CLOSESOCKET_CAMEL)
# define sclose_nolog(x) CloseSocket((x))
#else
# define sclose_nolog(x) close((x))
#endif
void Curl_http_auth_cleanup_ntlm_wb(struct connectdata *conn)
{
if(conn->ntlm_auth_hlpr_socket != CURL_SOCKET_BAD) {
sclose(conn->ntlm_auth_hlpr_socket);
conn->ntlm_auth_hlpr_socket = CURL_SOCKET_BAD;
}
if(conn->ntlm_auth_hlpr_pid) {
int i;
for(i = 0; i < 4; i++) {
pid_t ret = waitpid(conn->ntlm_auth_hlpr_pid, NULL, WNOHANG);
if(ret == conn->ntlm_auth_hlpr_pid || errno == ECHILD)
break;
switch(i) {
case 0:
kill(conn->ntlm_auth_hlpr_pid, SIGTERM);
break;
case 1:
/* Give the process another moment to shut down cleanly before
bringing down the axe */
Curl_wait_ms(1);
break;
case 2:
kill(conn->ntlm_auth_hlpr_pid, SIGKILL);
break;
case 3:
break;
}
}
conn->ntlm_auth_hlpr_pid = 0;
}
free(conn->challenge_header);
conn->challenge_header = NULL;
free(conn->response_header);
conn->response_header = NULL;
}
static CURLcode ntlm_wb_init(struct connectdata *conn, const char *userp)
{
curl_socket_t sockfds[2];
pid_t child_pid;
const char *username;
char *slash, *domain = NULL;
const char *ntlm_auth = NULL;
char *ntlm_auth_alloc = NULL;
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
struct passwd pw, *pw_res;
char pwbuf[1024];
#endif
char buffer[STRERROR_LEN];
/* Return if communication with ntlm_auth already set up */
if(conn->ntlm_auth_hlpr_socket != CURL_SOCKET_BAD ||
conn->ntlm_auth_hlpr_pid)
return CURLE_OK;
username = userp;
/* The real ntlm_auth really doesn't like being invoked with an
empty username. It won't make inferences for itself, and expects
the client to do so (mostly because it's really designed for
servers like squid to use for auth, and client support is an
afterthought for it). So try hard to provide a suitable username
if we don't already have one. But if we can't, provide the
empty one anyway. Perhaps they have an implementation of the
ntlm_auth helper which *doesn't* need it so we might as well try */
if(!username || !username[0]) {
username = getenv("NTLMUSER");
if(!username || !username[0])
username = getenv("LOGNAME");
if(!username || !username[0])
username = getenv("USER");
#if defined(HAVE_GETPWUID_R) && defined(HAVE_GETEUID)
if((!username || !username[0]) &&
!getpwuid_r(geteuid(), &pw, pwbuf, sizeof(pwbuf), &pw_res) &&
pw_res) {
username = pw.pw_name;
}
#endif
if(!username || !username[0])
username = userp;
}
slash = strpbrk(username, "\\/");
if(slash) {
domain = strdup(username);
if(!domain)
return CURLE_OUT_OF_MEMORY;
slash = domain + (slash - username);
*slash = '\0';
username = username + (slash - domain) + 1;
}
/* For testing purposes, when DEBUGBUILD is defined and environment
variable CURL_NTLM_WB_FILE is set a fake_ntlm is used to perform
NTLM challenge/response which only accepts commands and output
strings pre-written in test case definitions */
#ifdef DEBUGBUILD
ntlm_auth_alloc = curl_getenv("CURL_NTLM_WB_FILE");
if(ntlm_auth_alloc)
ntlm_auth = ntlm_auth_alloc;
else
#endif
ntlm_auth = NTLM_WB_FILE;
if(access(ntlm_auth, X_OK) != 0) {
failf(conn->data, "Could not access ntlm_auth: %s errno %d: %s",
ntlm_auth, errno, Curl_strerror(errno, buffer, sizeof(buffer)));
goto done;
}
if(socketpair(AF_UNIX, SOCK_STREAM, 0, sockfds)) {
failf(conn->data, "Could not open socket pair. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
goto done;
}
child_pid = fork();
if(child_pid == -1) {
sclose(sockfds[0]);
sclose(sockfds[1]);
failf(conn->data, "Could not fork. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
goto done;
}
else if(!child_pid) {
/*
* child process
*/
/* Don't use sclose in the child since it fools the socket leak detector */
sclose_nolog(sockfds[0]);
if(dup2(sockfds[1], STDIN_FILENO) == -1) {
failf(conn->data, "Could not redirect child stdin. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
exit(1);
}
if(dup2(sockfds[1], STDOUT_FILENO) == -1) {
failf(conn->data, "Could not redirect child stdout. errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
exit(1);
}
if(domain)
execl(ntlm_auth, ntlm_auth,
"--helper-protocol", "ntlmssp-client-1",
"--use-cached-creds",
"--username", username,
"--domain", domain,
NULL);
else
execl(ntlm_auth, ntlm_auth,
"--helper-protocol", "ntlmssp-client-1",
"--use-cached-creds",
"--username", username,
NULL);
sclose_nolog(sockfds[1]);
failf(conn->data, "Could not execl(). errno %d: %s",
errno, Curl_strerror(errno, buffer, sizeof(buffer)));
exit(1);
}
sclose(sockfds[1]);
conn->ntlm_auth_hlpr_socket = sockfds[0];
conn->ntlm_auth_hlpr_pid = child_pid;
free(domain);
free(ntlm_auth_alloc);
return CURLE_OK;
done:
free(domain);
free(ntlm_auth_alloc);
return CURLE_REMOTE_ACCESS_DENIED;
}
/* if larger than this, something is seriously wrong */
#define MAX_NTLM_WB_RESPONSE 100000
static CURLcode ntlm_wb_response(struct connectdata *conn,
const char *input, curlntlm state)
{
char *buf = malloc(NTLM_BUFSIZE);
size_t len_in = strlen(input), len_out = 0;
if(!buf)
return CURLE_OUT_OF_MEMORY;
while(len_in > 0) {
ssize_t written = swrite(conn->ntlm_auth_hlpr_socket, input, len_in);
if(written == -1) {
/* Interrupted by a signal, retry it */
if(errno == EINTR)
continue;
/* write failed if other errors happen */
goto done;
}
input += written;
len_in -= written;
}
/* Read one line */
while(1) {
ssize_t size;
char *newbuf;
size = sread(conn->ntlm_auth_hlpr_socket, buf + len_out, NTLM_BUFSIZE);
if(size == -1) {
if(errno == EINTR)
continue;
goto done;
}
else if(size == 0)
goto done;
len_out += size;
if(buf[len_out - 1] == '\n') {
buf[len_out - 1] = '\0';
break;
}
if(len_out > MAX_NTLM_WB_RESPONSE) {
failf(conn->data, "too large ntlm_wb response!");
free(buf);
return CURLE_OUT_OF_MEMORY;
}
newbuf = Curl_saferealloc(buf, len_out + NTLM_BUFSIZE);
if(!newbuf)
return CURLE_OUT_OF_MEMORY;
buf = newbuf;
}
/* Samba/winbind installed but not configured */
if(state == NTLMSTATE_TYPE1 &&
len_out == 3 &&
buf[0] == 'P' && buf[1] == 'W')
goto done;
/* invalid response */
if(len_out < 4)
goto done;
if(state == NTLMSTATE_TYPE1 &&
(buf[0]!='Y' || buf[1]!='R' || buf[2]!=' '))
goto done;
if(state == NTLMSTATE_TYPE2 &&
(buf[0]!='K' || buf[1]!='K' || buf[2]!=' ') &&
(buf[0]!='A' || buf[1]!='F' || buf[2]!=' '))
goto done;
conn->response_header = aprintf("NTLM %.*s", len_out - 4, buf + 3);
free(buf);
if(!conn->response_header)
return CURLE_OUT_OF_MEMORY;
return CURLE_OK;
done:
free(buf);
return CURLE_REMOTE_ACCESS_DENIED;
}
CURLcode Curl_input_ntlm_wb(struct connectdata *conn,
bool proxy,
const char *header)
{
curlntlm *state = proxy ? &conn->proxy_ntlm_state : &conn->http_ntlm_state;
if(!checkprefix("NTLM", header))
return CURLE_BAD_CONTENT_ENCODING;
header += strlen("NTLM");
while(*header && ISSPACE(*header))
header++;
if(*header) {
conn->challenge_header = strdup(header);
if(!conn->challenge_header)
return CURLE_OUT_OF_MEMORY;
*state = NTLMSTATE_TYPE2; /* We got a type-2 message */
}
else {
if(*state == NTLMSTATE_LAST) {
infof(conn->data, "NTLM auth restarted\n");
Curl_http_auth_cleanup_ntlm_wb(conn);
}
else if(*state == NTLMSTATE_TYPE3) {
infof(conn->data, "NTLM handshake rejected\n");
Curl_http_auth_cleanup_ntlm_wb(conn);
*state = NTLMSTATE_NONE;
return CURLE_REMOTE_ACCESS_DENIED;
}
else if(*state >= NTLMSTATE_TYPE1) {
infof(conn->data, "NTLM handshake failure (internal error)\n");
return CURLE_REMOTE_ACCESS_DENIED;
}
*state = NTLMSTATE_TYPE1; /* We should send away a type-1 */
}
return CURLE_OK;
}
/*
* This is for creating ntlm header output by delegating challenge/response
* to Samba's winbind daemon helper ntlm_auth.
*/
CURLcode Curl_output_ntlm_wb(struct connectdata *conn,
bool proxy)
{
/* point to the address of the pointer that holds the string to send to the
server, which is for a plain host or for a HTTP proxy */
char **allocuserpwd;
/* point to the name and password for this */
const char *userp;
curlntlm *state;
struct auth *authp;
CURLcode res = CURLE_OK;
char *input;
DEBUGASSERT(conn);
DEBUGASSERT(conn->data);
if(proxy) {
allocuserpwd = &conn->allocptr.proxyuserpwd;
userp = conn->http_proxy.user;
state = &conn->proxy_ntlm_state;
authp = &conn->data->state.authproxy;
}
else {
allocuserpwd = &conn->allocptr.userpwd;
userp = conn->user;
state = &conn->http_ntlm_state;
authp = &conn->data->state.authhost;
}
authp->done = FALSE;
/* not set means empty */
if(!userp)
userp = "";
switch(*state) {
case NTLMSTATE_TYPE1:
default:
/* Use Samba's 'winbind' daemon to support NTLM authentication,
* by delegating the NTLM challenge/response protocol to a helper
* in ntlm_auth.
* http://devel.squid-cache.org/ntlm/squid_helper_protocol.html
* https://www.samba.org/samba/docs/man/manpages-3/winbindd.8.html
* https://www.samba.org/samba/docs/man/manpages-3/ntlm_auth.1.html
* Preprocessor symbol 'NTLM_WB_ENABLED' is defined when this
* feature is enabled and 'NTLM_WB_FILE' symbol holds absolute
* filename of ntlm_auth helper.
* If NTLM authentication using winbind fails, go back to original
* request handling process.
*/
/* Create communication with ntlm_auth */
res = ntlm_wb_init(conn, userp);
if(res)
return res;
res = ntlm_wb_response(conn, "YR\n", *state);
if(res)
return res;
free(*allocuserpwd);
*allocuserpwd = aprintf("%sAuthorization: %s\r\n",
proxy ? "Proxy-" : "",
conn->response_header);
DEBUG_OUT(fprintf(stderr, "**** Header %s\n ", *allocuserpwd));
free(conn->response_header);
if(!*allocuserpwd)
return CURLE_OUT_OF_MEMORY;
conn->response_header = NULL;
break;
case NTLMSTATE_TYPE2:
input = aprintf("TT %s\n", conn->challenge_header);
if(!input)
return CURLE_OUT_OF_MEMORY;
res = ntlm_wb_response(conn, input, *state);
free(input);
input = NULL;
if(res)
return res;
free(*allocuserpwd);
*allocuserpwd = aprintf("%sAuthorization: %s\r\n",
proxy ? "Proxy-" : "",
conn->response_header);
DEBUG_OUT(fprintf(stderr, "**** %s\n ", *allocuserpwd));
*state = NTLMSTATE_TYPE3; /* we sent a type-3 */
authp->done = TRUE;
Curl_http_auth_cleanup_ntlm_wb(conn);
if(!*allocuserpwd)
return CURLE_OUT_OF_MEMORY;
break;
case NTLMSTATE_TYPE3:
/* connection is already authenticated,
* don't send a header in future requests */
*state = NTLMSTATE_LAST;
/* FALLTHROUGH */
case NTLMSTATE_LAST:
Curl_safefree(*allocuserpwd);
authp->done = TRUE;
break;
}
return CURLE_OK;
}
#endif /* !CURL_DISABLE_HTTP && USE_NTLM && NTLM_WB_ENABLED */

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#ifndef HEADER_CURL_NTLM_WB_H
#define HEADER_CURL_NTLM_WB_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_HTTP) && defined(USE_NTLM) && \
defined(NTLM_WB_ENABLED)
/* this is for ntlm header input */
CURLcode Curl_input_ntlm_wb(struct connectdata *conn, bool proxy,
const char *header);
/* this is for creating ntlm header output */
CURLcode Curl_output_ntlm_wb(struct connectdata *conn, bool proxy);
void Curl_http_auth_cleanup_ntlm_wb(struct connectdata *conn);
#endif /* !CURL_DISABLE_HTTP && USE_NTLM && NTLM_WB_ENABLED */
#endif /* HEADER_CURL_NTLM_WB_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_SSH)
#include <curl/curl.h>
#include "curl_memory.h"
#include "curl_path.h"
#include "escape.h"
#include "memdebug.h"
/* figure out the path to work with in this particular request */
CURLcode Curl_getworkingpath(struct connectdata *conn,
char *homedir, /* when SFTP is used */
char **path) /* returns the allocated
real path to work with */
{
struct Curl_easy *data = conn->data;
char *real_path = NULL;
char *working_path;
size_t working_path_len;
CURLcode result =
Curl_urldecode(data, data->state.up.path, 0, &working_path,
&working_path_len, FALSE);
if(result)
return result;
/* Check for /~/, indicating relative to the user's home directory */
if(conn->handler->protocol & CURLPROTO_SCP) {
real_path = malloc(working_path_len + 1);
if(real_path == NULL) {
free(working_path);
return CURLE_OUT_OF_MEMORY;
}
if((working_path_len > 3) && (!memcmp(working_path, "/~/", 3)))
/* It is referenced to the home directory, so strip the leading '/~/' */
memcpy(real_path, working_path + 3, 4 + working_path_len-3);
else
memcpy(real_path, working_path, 1 + working_path_len);
}
else if(conn->handler->protocol & CURLPROTO_SFTP) {
if((working_path_len > 1) && (working_path[1] == '~')) {
size_t homelen = strlen(homedir);
real_path = malloc(homelen + working_path_len + 1);
if(real_path == NULL) {
free(working_path);
return CURLE_OUT_OF_MEMORY;
}
/* It is referenced to the home directory, so strip the
leading '/' */
memcpy(real_path, homedir, homelen);
real_path[homelen] = '/';
real_path[homelen + 1] = '\0';
if(working_path_len > 3) {
memcpy(real_path + homelen + 1, working_path + 3,
1 + working_path_len -3);
}
}
else {
real_path = malloc(working_path_len + 1);
if(real_path == NULL) {
free(working_path);
return CURLE_OUT_OF_MEMORY;
}
memcpy(real_path, working_path, 1 + working_path_len);
}
}
free(working_path);
/* store the pointer for the caller to receive */
*path = real_path;
return CURLE_OK;
}
/* The get_pathname() function is being borrowed from OpenSSH sftp.c
version 4.6p1. */
/*
* Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
CURLcode Curl_get_pathname(const char **cpp, char **path, char *homedir)
{
const char *cp = *cpp, *end;
char quot;
unsigned int i, j;
size_t fullPathLength, pathLength;
bool relativePath = false;
static const char WHITESPACE[] = " \t\r\n";
if(!*cp) {
*cpp = NULL;
*path = NULL;
return CURLE_QUOTE_ERROR;
}
/* Ignore leading whitespace */
cp += strspn(cp, WHITESPACE);
/* Allocate enough space for home directory and filename + separator */
fullPathLength = strlen(cp) + strlen(homedir) + 2;
*path = malloc(fullPathLength);
if(*path == NULL)
return CURLE_OUT_OF_MEMORY;
/* Check for quoted filenames */
if(*cp == '\"' || *cp == '\'') {
quot = *cp++;
/* Search for terminating quote, unescape some chars */
for(i = j = 0; i <= strlen(cp); i++) {
if(cp[i] == quot) { /* Found quote */
i++;
(*path)[j] = '\0';
break;
}
if(cp[i] == '\0') { /* End of string */
/*error("Unterminated quote");*/
goto fail;
}
if(cp[i] == '\\') { /* Escaped characters */
i++;
if(cp[i] != '\'' && cp[i] != '\"' &&
cp[i] != '\\') {
/*error("Bad escaped character '\\%c'",
cp[i]);*/
goto fail;
}
}
(*path)[j++] = cp[i];
}
if(j == 0) {
/*error("Empty quotes");*/
goto fail;
}
*cpp = cp + i + strspn(cp + i, WHITESPACE);
}
else {
/* Read to end of filename - either to white space or terminator */
end = strpbrk(cp, WHITESPACE);
if(end == NULL)
end = strchr(cp, '\0');
/* return pointer to second parameter if it exists */
*cpp = end + strspn(end, WHITESPACE);
pathLength = 0;
relativePath = (cp[0] == '/' && cp[1] == '~' && cp[2] == '/');
/* Handling for relative path - prepend home directory */
if(relativePath) {
strcpy(*path, homedir);
pathLength = strlen(homedir);
(*path)[pathLength++] = '/';
(*path)[pathLength] = '\0';
cp += 3;
}
/* Copy path name up until first "white space" */
memcpy(&(*path)[pathLength], cp, (int)(end - cp));
pathLength += (int)(end - cp);
(*path)[pathLength] = '\0';
}
return CURLE_OK;
fail:
Curl_safefree(*path);
return CURLE_QUOTE_ERROR;
}
#endif /* if SSH is used */

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#ifndef HEADER_CURL_PATH_H
#define HEADER_CURL_PATH_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "urldata.h"
#ifdef WIN32
# undef PATH_MAX
# define PATH_MAX MAX_PATH
# ifndef R_OK
# define R_OK 4
# endif
#endif
#ifndef PATH_MAX
#define PATH_MAX 1024 /* just an extra precaution since there are systems that
have their definition hidden well */
#endif
CURLcode Curl_getworkingpath(struct connectdata *conn,
char *homedir,
char **path);
CURLcode Curl_get_pathname(const char **cpp, char **path, char *homedir);
#endif /* HEADER_CURL_PATH_H */

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#ifndef HEADER_CURL_PRINTF_H
#define HEADER_CURL_PRINTF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* This header should be included by ALL code in libcurl that uses any
* *rintf() functions.
*/
#include <curl/mprintf.h>
# undef printf
# undef fprintf
# undef msnprintf
# undef vprintf
# undef vfprintf
# undef vsnprintf
# undef aprintf
# undef vaprintf
# define printf curl_mprintf
# define fprintf curl_mfprintf
# define msnprintf curl_msnprintf
# define vprintf curl_mvprintf
# define vfprintf curl_mvfprintf
# define mvsnprintf curl_mvsnprintf
# define aprintf curl_maprintf
# define vaprintf curl_mvaprintf
#endif /* HEADER_CURL_PRINTF_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "curl_range.h"
#include "sendf.h"
#include "strtoofft.h"
/* Only include this function if one or more of FTP, FILE are enabled. */
#if !defined(CURL_DISABLE_FTP) || !defined(CURL_DISABLE_FILE)
/*
Check if this is a range download, and if so, set the internal variables
properly.
*/
CURLcode Curl_range(struct connectdata *conn)
{
curl_off_t from, to;
char *ptr;
char *ptr2;
struct Curl_easy *data = conn->data;
if(data->state.use_range && data->state.range) {
CURLofft from_t;
CURLofft to_t;
from_t = curlx_strtoofft(data->state.range, &ptr, 0, &from);
if(from_t == CURL_OFFT_FLOW)
return CURLE_RANGE_ERROR;
while(*ptr && (ISSPACE(*ptr) || (*ptr == '-')))
ptr++;
to_t = curlx_strtoofft(ptr, &ptr2, 0, &to);
if(to_t == CURL_OFFT_FLOW)
return CURLE_RANGE_ERROR;
if((to_t == CURL_OFFT_INVAL) && !from_t) {
/* X - */
data->state.resume_from = from;
DEBUGF(infof(data, "RANGE %" CURL_FORMAT_CURL_OFF_T " to end of file\n",
from));
}
else if((from_t == CURL_OFFT_INVAL) && !to_t) {
/* -Y */
data->req.maxdownload = to;
data->state.resume_from = -to;
DEBUGF(infof(data, "RANGE the last %" CURL_FORMAT_CURL_OFF_T " bytes\n",
to));
}
else {
/* X-Y */
curl_off_t totalsize;
/* Ensure the range is sensible - to should follow from. */
if(from > to)
return CURLE_RANGE_ERROR;
totalsize = to - from;
if(totalsize == CURL_OFF_T_MAX)
return CURLE_RANGE_ERROR;
data->req.maxdownload = totalsize + 1; /* include last byte */
data->state.resume_from = from;
DEBUGF(infof(data, "RANGE from %" CURL_FORMAT_CURL_OFF_T
" getting %" CURL_FORMAT_CURL_OFF_T " bytes\n",
from, data->req.maxdownload));
}
DEBUGF(infof(data, "range-download from %" CURL_FORMAT_CURL_OFF_T
" to %" CURL_FORMAT_CURL_OFF_T ", totally %"
CURL_FORMAT_CURL_OFF_T " bytes\n",
from, to, data->req.maxdownload));
}
else
data->req.maxdownload = -1;
return CURLE_OK;
}
#endif

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#ifndef HEADER_CURL_RANGE_H
#define HEADER_CURL_RANGE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include "urldata.h"
CURLcode Curl_range(struct connectdata *conn);
#endif /* HEADER_CURL_RANGE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
* Copyright (C) 2010, Howard Chu, <hyc@highlandsun.com>
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_LIBRTMP
#include "curl_rtmp.h"
#include "urldata.h"
#include "nonblock.h" /* for curlx_nonblock */
#include "progress.h" /* for Curl_pgrsSetUploadSize */
#include "transfer.h"
#include "warnless.h"
#include <curl/curl.h>
#include <librtmp/rtmp.h>
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#if defined(WIN32) && !defined(USE_LWIPSOCK)
#define setsockopt(a,b,c,d,e) (setsockopt)(a,b,c,(const char *)d,(int)e)
#define SET_RCVTIMEO(tv,s) int tv = s*1000
#elif defined(LWIP_SO_SNDRCVTIMEO_NONSTANDARD)
#define SET_RCVTIMEO(tv,s) int tv = s*1000
#else
#define SET_RCVTIMEO(tv,s) struct timeval tv = {s,0}
#endif
#define DEF_BUFTIME (2*60*60*1000) /* 2 hours */
static CURLcode rtmp_setup_connection(struct connectdata *conn);
static CURLcode rtmp_do(struct connectdata *conn, bool *done);
static CURLcode rtmp_done(struct connectdata *conn, CURLcode, bool premature);
static CURLcode rtmp_connect(struct connectdata *conn, bool *done);
static CURLcode rtmp_disconnect(struct connectdata *conn, bool dead);
static Curl_recv rtmp_recv;
static Curl_send rtmp_send;
/*
* RTMP protocol handler.h, based on https://rtmpdump.mplayerhq.hu
*/
const struct Curl_handler Curl_handler_rtmp = {
"RTMP", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_RTMP, /* defport */
CURLPROTO_RTMP, /* protocol */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpt = {
"RTMPT", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_RTMPT, /* defport */
CURLPROTO_RTMPT, /* protocol */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpe = {
"RTMPE", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_RTMP, /* defport */
CURLPROTO_RTMPE, /* protocol */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpte = {
"RTMPTE", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_RTMPT, /* defport */
CURLPROTO_RTMPTE, /* protocol */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmps = {
"RTMPS", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_RTMPS, /* defport */
CURLPROTO_RTMPS, /* protocol */
PROTOPT_NONE /* flags*/
};
const struct Curl_handler Curl_handler_rtmpts = {
"RTMPTS", /* scheme */
rtmp_setup_connection, /* setup_connection */
rtmp_do, /* do_it */
rtmp_done, /* done */
ZERO_NULL, /* do_more */
rtmp_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
rtmp_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_RTMPS, /* defport */
CURLPROTO_RTMPTS, /* protocol */
PROTOPT_NONE /* flags*/
};
static CURLcode rtmp_setup_connection(struct connectdata *conn)
{
RTMP *r = RTMP_Alloc();
if(!r)
return CURLE_OUT_OF_MEMORY;
RTMP_Init(r);
RTMP_SetBufferMS(r, DEF_BUFTIME);
if(!RTMP_SetupURL(r, conn->data->change.url)) {
RTMP_Free(r);
return CURLE_URL_MALFORMAT;
}
conn->proto.generic = r;
return CURLE_OK;
}
static CURLcode rtmp_connect(struct connectdata *conn, bool *done)
{
RTMP *r = conn->proto.generic;
SET_RCVTIMEO(tv, 10);
r->m_sb.sb_socket = (int)conn->sock[FIRSTSOCKET];
/* We have to know if it's a write before we send the
* connect request packet
*/
if(conn->data->set.upload)
r->Link.protocol |= RTMP_FEATURE_WRITE;
/* For plain streams, use the buffer toggle trick to keep data flowing */
if(!(r->Link.lFlags & RTMP_LF_LIVE) &&
!(r->Link.protocol & RTMP_FEATURE_HTTP))
r->Link.lFlags |= RTMP_LF_BUFX;
(void)curlx_nonblock(r->m_sb.sb_socket, FALSE);
setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_RCVTIMEO,
(char *)&tv, sizeof(tv));
if(!RTMP_Connect1(r, NULL))
return CURLE_FAILED_INIT;
/* Clients must send a periodic BytesReceived report to the server */
r->m_bSendCounter = true;
*done = TRUE;
conn->recv[FIRSTSOCKET] = rtmp_recv;
conn->send[FIRSTSOCKET] = rtmp_send;
return CURLE_OK;
}
static CURLcode rtmp_do(struct connectdata *conn, bool *done)
{
struct Curl_easy *data = conn->data;
RTMP *r = conn->proto.generic;
if(!RTMP_ConnectStream(r, 0))
return CURLE_FAILED_INIT;
if(conn->data->set.upload) {
Curl_pgrsSetUploadSize(data, data->state.infilesize);
Curl_setup_transfer(data, -1, -1, FALSE, FIRSTSOCKET);
}
else
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
*done = TRUE;
return CURLE_OK;
}
static CURLcode rtmp_done(struct connectdata *conn, CURLcode status,
bool premature)
{
(void)conn; /* unused */
(void)status; /* unused */
(void)premature; /* unused */
return CURLE_OK;
}
static CURLcode rtmp_disconnect(struct connectdata *conn,
bool dead_connection)
{
RTMP *r = conn->proto.generic;
(void)dead_connection;
if(r) {
conn->proto.generic = NULL;
RTMP_Close(r);
RTMP_Free(r);
}
return CURLE_OK;
}
static ssize_t rtmp_recv(struct connectdata *conn, int sockindex, char *buf,
size_t len, CURLcode *err)
{
RTMP *r = conn->proto.generic;
ssize_t nread;
(void)sockindex; /* unused */
nread = RTMP_Read(r, buf, curlx_uztosi(len));
if(nread < 0) {
if(r->m_read.status == RTMP_READ_COMPLETE ||
r->m_read.status == RTMP_READ_EOF) {
conn->data->req.size = conn->data->req.bytecount;
nread = 0;
}
else
*err = CURLE_RECV_ERROR;
}
return nread;
}
static ssize_t rtmp_send(struct connectdata *conn, int sockindex,
const void *buf, size_t len, CURLcode *err)
{
RTMP *r = conn->proto.generic;
ssize_t num;
(void)sockindex; /* unused */
num = RTMP_Write(r, (char *)buf, curlx_uztosi(len));
if(num < 0)
*err = CURLE_SEND_ERROR;
return num;
}
#endif /* USE_LIBRTMP */

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#ifndef HEADER_CURL_RTMP_H
#define HEADER_CURL_RTMP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2010, Howard Chu, <hyc@highlandsun.com>
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifdef USE_LIBRTMP
extern const struct Curl_handler Curl_handler_rtmp;
extern const struct Curl_handler Curl_handler_rtmpt;
extern const struct Curl_handler Curl_handler_rtmpe;
extern const struct Curl_handler Curl_handler_rtmpte;
extern const struct Curl_handler Curl_handler_rtmps;
extern const struct Curl_handler Curl_handler_rtmpts;
#endif
#endif /* HEADER_CURL_RTMP_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* RFC2195 CRAM-MD5 authentication
* RFC2617 Basic and Digest Access Authentication
* RFC2831 DIGEST-MD5 authentication
* RFC4422 Simple Authentication and Security Layer (SASL)
* RFC4616 PLAIN authentication
* RFC6749 OAuth 2.0 Authorization Framework
* RFC7628 A Set of SASL Mechanisms for OAuth
* Draft LOGIN SASL Mechanism <draft-murchison-sasl-login-00.txt>
*
***************************************************************************/
#include "curl_setup.h"
#if !defined(CURL_DISABLE_IMAP) || !defined(CURL_DISABLE_SMTP) || \
!defined(CURL_DISABLE_POP3)
#include <curl/curl.h>
#include "urldata.h"
#include "curl_base64.h"
#include "curl_md5.h"
#include "vauth/vauth.h"
#include "vtls/vtls.h"
#include "curl_hmac.h"
#include "curl_sasl.h"
#include "warnless.h"
#include "strtok.h"
#include "sendf.h"
#include "non-ascii.h" /* included for Curl_convert_... prototypes */
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* Supported mechanisms */
static const struct {
const char *name; /* Name */
size_t len; /* Name length */
unsigned int bit; /* Flag bit */
} mechtable[] = {
{ "LOGIN", 5, SASL_MECH_LOGIN },
{ "PLAIN", 5, SASL_MECH_PLAIN },
{ "CRAM-MD5", 8, SASL_MECH_CRAM_MD5 },
{ "DIGEST-MD5", 10, SASL_MECH_DIGEST_MD5 },
{ "GSSAPI", 6, SASL_MECH_GSSAPI },
{ "EXTERNAL", 8, SASL_MECH_EXTERNAL },
{ "NTLM", 4, SASL_MECH_NTLM },
{ "XOAUTH2", 7, SASL_MECH_XOAUTH2 },
{ "OAUTHBEARER", 11, SASL_MECH_OAUTHBEARER },
{ ZERO_NULL, 0, 0 }
};
/*
* Curl_sasl_cleanup()
*
* This is used to cleanup any libraries or curl modules used by the sasl
* functions.
*
* Parameters:
*
* conn [in] - The connection data.
* authused [in] - The authentication mechanism used.
*/
void Curl_sasl_cleanup(struct connectdata *conn, unsigned int authused)
{
#if defined(USE_KERBEROS5)
/* Cleanup the gssapi structure */
if(authused == SASL_MECH_GSSAPI) {
Curl_auth_cleanup_gssapi(&conn->krb5);
}
#endif
#if defined(USE_NTLM)
/* Cleanup the NTLM structure */
if(authused == SASL_MECH_NTLM) {
Curl_auth_cleanup_ntlm(&conn->ntlm);
}
#endif
#if !defined(USE_KERBEROS5) && !defined(USE_NTLM)
/* Reserved for future use */
(void)conn;
(void)authused;
#endif
}
/*
* Curl_sasl_decode_mech()
*
* Convert a SASL mechanism name into a token.
*
* Parameters:
*
* ptr [in] - The mechanism string.
* maxlen [in] - Maximum mechanism string length.
* len [out] - If not NULL, effective name length.
*
* Returns the SASL mechanism token or 0 if no match.
*/
unsigned int Curl_sasl_decode_mech(const char *ptr, size_t maxlen, size_t *len)
{
unsigned int i;
char c;
for(i = 0; mechtable[i].name; i++) {
if(maxlen >= mechtable[i].len &&
!memcmp(ptr, mechtable[i].name, mechtable[i].len)) {
if(len)
*len = mechtable[i].len;
if(maxlen == mechtable[i].len)
return mechtable[i].bit;
c = ptr[mechtable[i].len];
if(!ISUPPER(c) && !ISDIGIT(c) && c != '-' && c != '_')
return mechtable[i].bit;
}
}
return 0;
}
/*
* Curl_sasl_parse_url_auth_option()
*
* Parse the URL login options.
*/
CURLcode Curl_sasl_parse_url_auth_option(struct SASL *sasl,
const char *value, size_t len)
{
CURLcode result = CURLE_OK;
size_t mechlen;
if(!len)
return CURLE_URL_MALFORMAT;
if(sasl->resetprefs) {
sasl->resetprefs = FALSE;
sasl->prefmech = SASL_AUTH_NONE;
}
if(!strncmp(value, "*", len))
sasl->prefmech = SASL_AUTH_DEFAULT;
else {
unsigned int mechbit = Curl_sasl_decode_mech(value, len, &mechlen);
if(mechbit && mechlen == len)
sasl->prefmech |= mechbit;
else
result = CURLE_URL_MALFORMAT;
}
return result;
}
/*
* Curl_sasl_init()
*
* Initializes the SASL structure.
*/
void Curl_sasl_init(struct SASL *sasl, const struct SASLproto *params)
{
sasl->params = params; /* Set protocol dependent parameters */
sasl->state = SASL_STOP; /* Not yet running */
sasl->authmechs = SASL_AUTH_NONE; /* No known authentication mechanism yet */
sasl->prefmech = SASL_AUTH_DEFAULT; /* Prefer all mechanisms */
sasl->authused = SASL_AUTH_NONE; /* No the authentication mechanism used */
sasl->resetprefs = TRUE; /* Reset prefmech upon AUTH parsing. */
sasl->mutual_auth = FALSE; /* No mutual authentication (GSSAPI only) */
sasl->force_ir = FALSE; /* Respect external option */
}
/*
* state()
*
* This is the ONLY way to change SASL state!
*/
static void state(struct SASL *sasl, struct connectdata *conn,
saslstate newstate)
{
#if defined(DEBUGBUILD) && !defined(CURL_DISABLE_VERBOSE_STRINGS)
/* for debug purposes */
static const char * const names[]={
"STOP",
"PLAIN",
"LOGIN",
"LOGIN_PASSWD",
"EXTERNAL",
"CRAMMD5",
"DIGESTMD5",
"DIGESTMD5_RESP",
"NTLM",
"NTLM_TYPE2MSG",
"GSSAPI",
"GSSAPI_TOKEN",
"GSSAPI_NO_DATA",
"OAUTH2",
"OAUTH2_RESP",
"CANCEL",
"FINAL",
/* LAST */
};
if(sasl->state != newstate)
infof(conn->data, "SASL %p state change from %s to %s\n",
(void *)sasl, names[sasl->state], names[newstate]);
#else
(void) conn;
#endif
sasl->state = newstate;
}
/*
* Curl_sasl_can_authenticate()
*
* Check if we have enough auth data and capabilities to authenticate.
*/
bool Curl_sasl_can_authenticate(struct SASL *sasl, struct connectdata *conn)
{
/* Have credentials been provided? */
if(conn->bits.user_passwd)
return TRUE;
/* EXTERNAL can authenticate without a user name and/or password */
if(sasl->authmechs & sasl->prefmech & SASL_MECH_EXTERNAL)
return TRUE;
return FALSE;
}
/*
* Curl_sasl_start()
*
* Calculate the required login details for SASL authentication.
*/
CURLcode Curl_sasl_start(struct SASL *sasl, struct connectdata *conn,
bool force_ir, saslprogress *progress)
{
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
unsigned int enabledmechs;
const char *mech = NULL;
char *resp = NULL;
size_t len = 0;
saslstate state1 = SASL_STOP;
saslstate state2 = SASL_FINAL;
const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
conn->host.name;
const long int port = SSL_IS_PROXY() ? conn->port : conn->remote_port;
#if defined(USE_KERBEROS5) || defined(USE_NTLM)
const char *service = data->set.str[STRING_SERVICE_NAME] ?
data->set.str[STRING_SERVICE_NAME] :
sasl->params->service;
#endif
sasl->force_ir = force_ir; /* Latch for future use */
sasl->authused = 0; /* No mechanism used yet */
enabledmechs = sasl->authmechs & sasl->prefmech;
*progress = SASL_IDLE;
/* Calculate the supported authentication mechanism, by decreasing order of
security, as well as the initial response where appropriate */
if((enabledmechs & SASL_MECH_EXTERNAL) && !conn->passwd[0]) {
mech = SASL_MECH_STRING_EXTERNAL;
state1 = SASL_EXTERNAL;
sasl->authused = SASL_MECH_EXTERNAL;
if(force_ir || data->set.sasl_ir)
result = Curl_auth_create_external_message(data, conn->user, &resp,
&len);
}
else if(conn->bits.user_passwd) {
#if defined(USE_KERBEROS5)
if((enabledmechs & SASL_MECH_GSSAPI) && Curl_auth_is_gssapi_supported() &&
Curl_auth_user_contains_domain(conn->user)) {
sasl->mutual_auth = FALSE;
mech = SASL_MECH_STRING_GSSAPI;
state1 = SASL_GSSAPI;
state2 = SASL_GSSAPI_TOKEN;
sasl->authused = SASL_MECH_GSSAPI;
if(force_ir || data->set.sasl_ir)
result = Curl_auth_create_gssapi_user_message(data, conn->user,
conn->passwd,
service,
data->conn->host.name,
sasl->mutual_auth,
NULL, &conn->krb5,
&resp, &len);
}
else
#endif
#ifndef CURL_DISABLE_CRYPTO_AUTH
if((enabledmechs & SASL_MECH_DIGEST_MD5) &&
Curl_auth_is_digest_supported()) {
mech = SASL_MECH_STRING_DIGEST_MD5;
state1 = SASL_DIGESTMD5;
sasl->authused = SASL_MECH_DIGEST_MD5;
}
else if(enabledmechs & SASL_MECH_CRAM_MD5) {
mech = SASL_MECH_STRING_CRAM_MD5;
state1 = SASL_CRAMMD5;
sasl->authused = SASL_MECH_CRAM_MD5;
}
else
#endif
#ifdef USE_NTLM
if((enabledmechs & SASL_MECH_NTLM) && Curl_auth_is_ntlm_supported()) {
mech = SASL_MECH_STRING_NTLM;
state1 = SASL_NTLM;
state2 = SASL_NTLM_TYPE2MSG;
sasl->authused = SASL_MECH_NTLM;
if(force_ir || data->set.sasl_ir)
result = Curl_auth_create_ntlm_type1_message(data,
conn->user, conn->passwd,
service,
hostname,
&conn->ntlm, &resp,
&len);
}
else
#endif
if((enabledmechs & SASL_MECH_OAUTHBEARER) && conn->oauth_bearer) {
mech = SASL_MECH_STRING_OAUTHBEARER;
state1 = SASL_OAUTH2;
state2 = SASL_OAUTH2_RESP;
sasl->authused = SASL_MECH_OAUTHBEARER;
if(force_ir || data->set.sasl_ir)
result = Curl_auth_create_oauth_bearer_message(data, conn->user,
hostname,
port,
conn->oauth_bearer,
&resp, &len);
}
else if((enabledmechs & SASL_MECH_XOAUTH2) && conn->oauth_bearer) {
mech = SASL_MECH_STRING_XOAUTH2;
state1 = SASL_OAUTH2;
sasl->authused = SASL_MECH_XOAUTH2;
if(force_ir || data->set.sasl_ir)
result = Curl_auth_create_xoauth_bearer_message(data, conn->user,
conn->oauth_bearer,
&resp, &len);
}
else if(enabledmechs & SASL_MECH_PLAIN) {
mech = SASL_MECH_STRING_PLAIN;
state1 = SASL_PLAIN;
sasl->authused = SASL_MECH_PLAIN;
if(force_ir || data->set.sasl_ir)
result = Curl_auth_create_plain_message(data, NULL, conn->user,
conn->passwd, &resp, &len);
}
else if(enabledmechs & SASL_MECH_LOGIN) {
mech = SASL_MECH_STRING_LOGIN;
state1 = SASL_LOGIN;
state2 = SASL_LOGIN_PASSWD;
sasl->authused = SASL_MECH_LOGIN;
if(force_ir || data->set.sasl_ir)
result = Curl_auth_create_login_message(data, conn->user, &resp, &len);
}
}
if(!result && mech) {
if(resp && sasl->params->maxirlen &&
strlen(mech) + len > sasl->params->maxirlen) {
free(resp);
resp = NULL;
}
result = sasl->params->sendauth(conn, mech, resp);
if(!result) {
*progress = SASL_INPROGRESS;
state(sasl, conn, resp ? state2 : state1);
}
}
free(resp);
return result;
}
/*
* Curl_sasl_continue()
*
* Continue the authentication.
*/
CURLcode Curl_sasl_continue(struct SASL *sasl, struct connectdata *conn,
int code, saslprogress *progress)
{
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
saslstate newstate = SASL_FINAL;
char *resp = NULL;
const char * const hostname = SSL_IS_PROXY() ? conn->http_proxy.host.name :
conn->host.name;
const long int port = SSL_IS_PROXY() ? conn->port : conn->remote_port;
#if !defined(CURL_DISABLE_CRYPTO_AUTH)
char *chlg = NULL;
size_t chlglen = 0;
#endif
#if !defined(CURL_DISABLE_CRYPTO_AUTH) || defined(USE_KERBEROS5) || \
defined(USE_NTLM)
const char *service = data->set.str[STRING_SERVICE_NAME] ?
data->set.str[STRING_SERVICE_NAME] :
sasl->params->service;
char *serverdata;
#endif
size_t len = 0;
*progress = SASL_INPROGRESS;
if(sasl->state == SASL_FINAL) {
if(code != sasl->params->finalcode)
result = CURLE_LOGIN_DENIED;
*progress = SASL_DONE;
state(sasl, conn, SASL_STOP);
return result;
}
if(sasl->state != SASL_CANCEL && sasl->state != SASL_OAUTH2_RESP &&
code != sasl->params->contcode) {
*progress = SASL_DONE;
state(sasl, conn, SASL_STOP);
return CURLE_LOGIN_DENIED;
}
switch(sasl->state) {
case SASL_STOP:
*progress = SASL_DONE;
return result;
case SASL_PLAIN:
result = Curl_auth_create_plain_message(data, NULL, conn->user,
conn->passwd, &resp, &len);
break;
case SASL_LOGIN:
result = Curl_auth_create_login_message(data, conn->user, &resp, &len);
newstate = SASL_LOGIN_PASSWD;
break;
case SASL_LOGIN_PASSWD:
result = Curl_auth_create_login_message(data, conn->passwd, &resp, &len);
break;
case SASL_EXTERNAL:
result = Curl_auth_create_external_message(data, conn->user, &resp, &len);
break;
#ifndef CURL_DISABLE_CRYPTO_AUTH
case SASL_CRAMMD5:
sasl->params->getmessage(data->state.buffer, &serverdata);
result = Curl_auth_decode_cram_md5_message(serverdata, &chlg, &chlglen);
if(!result)
result = Curl_auth_create_cram_md5_message(data, chlg, conn->user,
conn->passwd, &resp, &len);
free(chlg);
break;
case SASL_DIGESTMD5:
sasl->params->getmessage(data->state.buffer, &serverdata);
result = Curl_auth_create_digest_md5_message(data, serverdata,
conn->user, conn->passwd,
service,
&resp, &len);
newstate = SASL_DIGESTMD5_RESP;
break;
case SASL_DIGESTMD5_RESP:
resp = strdup("");
if(!resp)
result = CURLE_OUT_OF_MEMORY;
break;
#endif
#ifdef USE_NTLM
case SASL_NTLM:
/* Create the type-1 message */
result = Curl_auth_create_ntlm_type1_message(data,
conn->user, conn->passwd,
service, hostname,
&conn->ntlm, &resp, &len);
newstate = SASL_NTLM_TYPE2MSG;
break;
case SASL_NTLM_TYPE2MSG:
/* Decode the type-2 message */
sasl->params->getmessage(data->state.buffer, &serverdata);
result = Curl_auth_decode_ntlm_type2_message(data, serverdata,
&conn->ntlm);
if(!result)
result = Curl_auth_create_ntlm_type3_message(data, conn->user,
conn->passwd, &conn->ntlm,
&resp, &len);
break;
#endif
#if defined(USE_KERBEROS5)
case SASL_GSSAPI:
result = Curl_auth_create_gssapi_user_message(data, conn->user,
conn->passwd,
service,
data->conn->host.name,
sasl->mutual_auth, NULL,
&conn->krb5,
&resp, &len);
newstate = SASL_GSSAPI_TOKEN;
break;
case SASL_GSSAPI_TOKEN:
sasl->params->getmessage(data->state.buffer, &serverdata);
if(sasl->mutual_auth) {
/* Decode the user token challenge and create the optional response
message */
result = Curl_auth_create_gssapi_user_message(data, NULL, NULL,
NULL, NULL,
sasl->mutual_auth,
serverdata, &conn->krb5,
&resp, &len);
newstate = SASL_GSSAPI_NO_DATA;
}
else
/* Decode the security challenge and create the response message */
result = Curl_auth_create_gssapi_security_message(data, serverdata,
&conn->krb5,
&resp, &len);
break;
case SASL_GSSAPI_NO_DATA:
sasl->params->getmessage(data->state.buffer, &serverdata);
/* Decode the security challenge and create the response message */
result = Curl_auth_create_gssapi_security_message(data, serverdata,
&conn->krb5,
&resp, &len);
break;
#endif
case SASL_OAUTH2:
/* Create the authorisation message */
if(sasl->authused == SASL_MECH_OAUTHBEARER) {
result = Curl_auth_create_oauth_bearer_message(data, conn->user,
hostname,
port,
conn->oauth_bearer,
&resp, &len);
/* Failures maybe sent by the server as continuations for OAUTHBEARER */
newstate = SASL_OAUTH2_RESP;
}
else
result = Curl_auth_create_xoauth_bearer_message(data, conn->user,
conn->oauth_bearer,
&resp, &len);
break;
case SASL_OAUTH2_RESP:
/* The continuation is optional so check the response code */
if(code == sasl->params->finalcode) {
/* Final response was received so we are done */
*progress = SASL_DONE;
state(sasl, conn, SASL_STOP);
return result;
}
else if(code == sasl->params->contcode) {
/* Acknowledge the continuation by sending a 0x01 response base64
encoded */
resp = strdup("AQ==");
if(!resp)
result = CURLE_OUT_OF_MEMORY;
break;
}
else {
*progress = SASL_DONE;
state(sasl, conn, SASL_STOP);
return CURLE_LOGIN_DENIED;
}
case SASL_CANCEL:
/* Remove the offending mechanism from the supported list */
sasl->authmechs ^= sasl->authused;
/* Start an alternative SASL authentication */
result = Curl_sasl_start(sasl, conn, sasl->force_ir, progress);
newstate = sasl->state; /* Use state from Curl_sasl_start() */
break;
default:
failf(data, "Unsupported SASL authentication mechanism");
result = CURLE_UNSUPPORTED_PROTOCOL; /* Should not happen */
break;
}
switch(result) {
case CURLE_BAD_CONTENT_ENCODING:
/* Cancel dialog */
result = sasl->params->sendcont(conn, "*");
newstate = SASL_CANCEL;
break;
case CURLE_OK:
if(resp)
result = sasl->params->sendcont(conn, resp);
break;
default:
newstate = SASL_STOP; /* Stop on error */
*progress = SASL_DONE;
break;
}
free(resp);
state(sasl, conn, newstate);
return result;
}
#endif /* protocols are enabled that use SASL */

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#ifndef HEADER_CURL_SASL_H
#define HEADER_CURL_SASL_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2012 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <curl/curl.h>
struct Curl_easy;
struct connectdata;
/* Authentication mechanism flags */
#define SASL_MECH_LOGIN (1 << 0)
#define SASL_MECH_PLAIN (1 << 1)
#define SASL_MECH_CRAM_MD5 (1 << 2)
#define SASL_MECH_DIGEST_MD5 (1 << 3)
#define SASL_MECH_GSSAPI (1 << 4)
#define SASL_MECH_EXTERNAL (1 << 5)
#define SASL_MECH_NTLM (1 << 6)
#define SASL_MECH_XOAUTH2 (1 << 7)
#define SASL_MECH_OAUTHBEARER (1 << 8)
/* Authentication mechanism values */
#define SASL_AUTH_NONE 0
#define SASL_AUTH_ANY ~0U
#define SASL_AUTH_DEFAULT (SASL_AUTH_ANY & ~SASL_MECH_EXTERNAL)
/* Authentication mechanism strings */
#define SASL_MECH_STRING_LOGIN "LOGIN"
#define SASL_MECH_STRING_PLAIN "PLAIN"
#define SASL_MECH_STRING_CRAM_MD5 "CRAM-MD5"
#define SASL_MECH_STRING_DIGEST_MD5 "DIGEST-MD5"
#define SASL_MECH_STRING_GSSAPI "GSSAPI"
#define SASL_MECH_STRING_EXTERNAL "EXTERNAL"
#define SASL_MECH_STRING_NTLM "NTLM"
#define SASL_MECH_STRING_XOAUTH2 "XOAUTH2"
#define SASL_MECH_STRING_OAUTHBEARER "OAUTHBEARER"
/* SASL machine states */
typedef enum {
SASL_STOP,
SASL_PLAIN,
SASL_LOGIN,
SASL_LOGIN_PASSWD,
SASL_EXTERNAL,
SASL_CRAMMD5,
SASL_DIGESTMD5,
SASL_DIGESTMD5_RESP,
SASL_NTLM,
SASL_NTLM_TYPE2MSG,
SASL_GSSAPI,
SASL_GSSAPI_TOKEN,
SASL_GSSAPI_NO_DATA,
SASL_OAUTH2,
SASL_OAUTH2_RESP,
SASL_CANCEL,
SASL_FINAL
} saslstate;
/* Progress indicator */
typedef enum {
SASL_IDLE,
SASL_INPROGRESS,
SASL_DONE
} saslprogress;
/* Protocol dependent SASL parameters */
struct SASLproto {
const char *service; /* The service name */
int contcode; /* Code to receive when continuation is expected */
int finalcode; /* Code to receive upon authentication success */
size_t maxirlen; /* Maximum initial response length */
CURLcode (*sendauth)(struct connectdata *conn,
const char *mech, const char *ir);
/* Send authentication command */
CURLcode (*sendcont)(struct connectdata *conn, const char *contauth);
/* Send authentication continuation */
void (*getmessage)(char *buffer, char **outptr);
/* Get SASL response message */
};
/* Per-connection parameters */
struct SASL {
const struct SASLproto *params; /* Protocol dependent parameters */
saslstate state; /* Current machine state */
unsigned int authmechs; /* Accepted authentication mechanisms */
unsigned int prefmech; /* Preferred authentication mechanism */
unsigned int authused; /* Auth mechanism used for the connection */
bool resetprefs; /* For URL auth option parsing. */
bool mutual_auth; /* Mutual authentication enabled (GSSAPI only) */
bool force_ir; /* Protocol always supports initial response */
};
/* This is used to test whether the line starts with the given mechanism */
#define sasl_mech_equal(line, wordlen, mech) \
(wordlen == (sizeof(mech) - 1) / sizeof(char) && \
!memcmp(line, mech, wordlen))
/* This is used to cleanup any libraries or curl modules used by the sasl
functions */
void Curl_sasl_cleanup(struct connectdata *conn, unsigned int authused);
/* Convert a mechanism name to a token */
unsigned int Curl_sasl_decode_mech(const char *ptr,
size_t maxlen, size_t *len);
/* Parse the URL login options */
CURLcode Curl_sasl_parse_url_auth_option(struct SASL *sasl,
const char *value, size_t len);
/* Initializes an SASL structure */
void Curl_sasl_init(struct SASL *sasl, const struct SASLproto *params);
/* Check if we have enough auth data and capabilities to authenticate */
bool Curl_sasl_can_authenticate(struct SASL *sasl, struct connectdata *conn);
/* Calculate the required login details for SASL authentication */
CURLcode Curl_sasl_start(struct SASL *sasl, struct connectdata *conn,
bool force_ir, saslprogress *progress);
/* Continue an SASL authentication */
CURLcode Curl_sasl_continue(struct SASL *sasl, struct connectdata *conn,
int code, saslprogress *progress);
#endif /* HEADER_CURL_SASL_H */

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#ifndef HEADER_CURL_SECURITY_H
#define HEADER_CURL_SECURITY_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
struct Curl_sec_client_mech {
const char *name;
size_t size;
int (*init)(void *);
int (*auth)(void *, struct connectdata *);
void (*end)(void *);
int (*check_prot)(void *, int);
int (*overhead)(void *, int, int);
int (*encode)(void *, const void *, int, int, void **);
int (*decode)(void *, void *, int, int, struct connectdata *);
};
#define AUTH_OK 0
#define AUTH_CONTINUE 1
#define AUTH_ERROR 2
#ifdef HAVE_GSSAPI
int Curl_sec_read_msg(struct connectdata *conn, char *,
enum protection_level);
void Curl_sec_end(struct connectdata *);
CURLcode Curl_sec_login(struct connectdata *);
int Curl_sec_request_prot(struct connectdata *conn, const char *level);
extern struct Curl_sec_client_mech Curl_krb5_client_mech;
#endif
#endif /* HEADER_CURL_SECURITY_H */

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@ -0,0 +1,845 @@
#ifndef HEADER_CURL_SETUP_H
#define HEADER_CURL_SETUP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#if defined(BUILDING_LIBCURL) && !defined(CURL_NO_OLDIES)
#define CURL_NO_OLDIES
#endif
/*
* Define WIN32 when build target is Win32 API
*/
#if (defined(_WIN32) || defined(__WIN32__)) && !defined(WIN32) && \
!defined(__SYMBIAN32__)
#define WIN32
#endif
#ifdef WIN32
/*
* Don't include unneeded stuff in Windows headers to avoid compiler
* warnings and macro clashes.
* Make sure to define this macro before including any Windows headers.
*/
# ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# endif
# ifndef NOGDI
# define NOGDI
# endif
#endif
/*
* Include configuration script results or hand-crafted
* configuration file for platforms which lack config tool.
*/
#ifdef HAVE_CONFIG_H
#include "curl_config.h"
#else /* HAVE_CONFIG_H */
#ifdef _WIN32_WCE
# include "config-win32ce.h"
#else
# ifdef WIN32
# include "config-win32.h"
# endif
#endif
#if defined(macintosh) && defined(__MRC__)
# include "config-mac.h"
#endif
#ifdef __riscos__
# include "config-riscos.h"
#endif
#ifdef __AMIGA__
# include "config-amigaos.h"
#endif
#ifdef __SYMBIAN32__
# include "config-symbian.h"
#endif
#ifdef __OS400__
# include "config-os400.h"
#endif
#ifdef TPF
# include "config-tpf.h"
#endif
#ifdef __VXWORKS__
# include "config-vxworks.h"
#endif
#endif /* HAVE_CONFIG_H */
#if defined(_MSC_VER)
# pragma warning(push,1)
#endif
/* ================================================================ */
/* Definition of preprocessor macros/symbols which modify compiler */
/* behavior or generated code characteristics must be done here, */
/* as appropriate, before any system header file is included. It is */
/* also possible to have them defined in the config file included */
/* before this point. As a result of all this we frown inclusion of */
/* system header files in our config files, avoid this at any cost. */
/* ================================================================ */
/*
* AIX 4.3 and newer needs _THREAD_SAFE defined to build
* proper reentrant code. Others may also need it.
*/
#ifdef NEED_THREAD_SAFE
# ifndef _THREAD_SAFE
# define _THREAD_SAFE
# endif
#endif
/*
* Tru64 needs _REENTRANT set for a few function prototypes and
* things to appear in the system header files. Unixware needs it
* to build proper reentrant code. Others may also need it.
*/
#ifdef NEED_REENTRANT
# ifndef _REENTRANT
# define _REENTRANT
# endif
#endif
/* Solaris needs this to get a POSIX-conformant getpwuid_r */
#if defined(sun) || defined(__sun)
# ifndef _POSIX_PTHREAD_SEMANTICS
# define _POSIX_PTHREAD_SEMANTICS 1
# endif
#endif
/* ================================================================ */
/* If you need to include a system header file for your platform, */
/* please, do it beyond the point further indicated in this file. */
/* ================================================================ */
#include <curl/curl.h>
#define CURL_SIZEOF_CURL_OFF_T SIZEOF_CURL_OFF_T
/*
* Disable other protocols when http is the only one desired.
*/
#ifdef HTTP_ONLY
# ifndef CURL_DISABLE_TFTP
# define CURL_DISABLE_TFTP
# endif
# ifndef CURL_DISABLE_FTP
# define CURL_DISABLE_FTP
# endif
# ifndef CURL_DISABLE_LDAP
# define CURL_DISABLE_LDAP
# endif
# ifndef CURL_DISABLE_TELNET
# define CURL_DISABLE_TELNET
# endif
# ifndef CURL_DISABLE_DICT
# define CURL_DISABLE_DICT
# endif
# ifndef CURL_DISABLE_FILE
# define CURL_DISABLE_FILE
# endif
# ifndef CURL_DISABLE_RTSP
# define CURL_DISABLE_RTSP
# endif
# ifndef CURL_DISABLE_POP3
# define CURL_DISABLE_POP3
# endif
# ifndef CURL_DISABLE_IMAP
# define CURL_DISABLE_IMAP
# endif
# ifndef CURL_DISABLE_SMTP
# define CURL_DISABLE_SMTP
# endif
# ifndef CURL_DISABLE_GOPHER
# define CURL_DISABLE_GOPHER
# endif
# ifndef CURL_DISABLE_SMB
# define CURL_DISABLE_SMB
# endif
#endif
/*
* When http is disabled rtsp is not supported.
*/
#if defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_RTSP)
# define CURL_DISABLE_RTSP
#endif
/* ================================================================ */
/* No system header file shall be included in this file before this */
/* point. The only allowed ones are those included from curl/system.h */
/* ================================================================ */
/*
* OS/400 setup file includes some system headers.
*/
#ifdef __OS400__
# include "setup-os400.h"
#endif
/*
* VMS setup file includes some system headers.
*/
#ifdef __VMS
# include "setup-vms.h"
#endif
/*
* Use getaddrinfo to resolve the IPv4 address literal. If the current network
* interface doesn't support IPv4, but supports IPv6, NAT64, and DNS64,
* performing this task will result in a synthesized IPv6 address.
*/
#ifdef __APPLE__
#define USE_RESOLVE_ON_IPS 1
#endif
/*
* Include header files for windows builds before redefining anything.
* Use this preprocessor block only to include or exclude windows.h,
* winsock2.h, ws2tcpip.h or winsock.h. Any other windows thing belongs
* to any other further and independent block. Under Cygwin things work
* just as under linux (e.g. <sys/socket.h>) and the winsock headers should
* never be included when __CYGWIN__ is defined. configure script takes
* care of this, not defining HAVE_WINDOWS_H, HAVE_WINSOCK_H, HAVE_WINSOCK2_H,
* neither HAVE_WS2TCPIP_H when __CYGWIN__ is defined.
*/
#ifdef HAVE_WINDOWS_H
# if defined(UNICODE) && !defined(_UNICODE)
# define _UNICODE
# endif
# if defined(_UNICODE) && !defined(UNICODE)
# define UNICODE
# endif
# include <winerror.h>
# include <windows.h>
# ifdef HAVE_WINSOCK2_H
# include <winsock2.h>
# ifdef HAVE_WS2TCPIP_H
# include <ws2tcpip.h>
# endif
# else
# ifdef HAVE_WINSOCK_H
# include <winsock.h>
# endif
# endif
# include <tchar.h>
# ifdef UNICODE
typedef wchar_t *(*curl_wcsdup_callback)(const wchar_t *str);
# endif
#endif
/*
* Define USE_WINSOCK to 2 if we have and use WINSOCK2 API, else
* define USE_WINSOCK to 1 if we have and use WINSOCK API, else
* undefine USE_WINSOCK.
*/
#undef USE_WINSOCK
#ifdef HAVE_WINSOCK2_H
# define USE_WINSOCK 2
#else
# ifdef HAVE_WINSOCK_H
# define USE_WINSOCK 1
# endif
#endif
#ifdef USE_LWIPSOCK
# include <lwip/init.h>
# include <lwip/sockets.h>
# include <lwip/netdb.h>
#endif
#ifdef HAVE_EXTRA_STRICMP_H
# include <extra/stricmp.h>
#endif
#ifdef HAVE_EXTRA_STRDUP_H
# include <extra/strdup.h>
#endif
#ifdef TPF
# include <strings.h> /* for bzero, strcasecmp, and strncasecmp */
# include <string.h> /* for strcpy and strlen */
# include <stdlib.h> /* for rand and srand */
# include <sys/socket.h> /* for select and ioctl*/
# include <netdb.h> /* for in_addr_t definition */
# include <tpf/sysapi.h> /* for tpf_process_signals */
/* change which select is used for libcurl */
# define select(a,b,c,d,e) tpf_select_libcurl(a,b,c,d,e)
#endif
#ifdef __VXWORKS__
# include <sockLib.h> /* for generic BSD socket functions */
# include <ioLib.h> /* for basic I/O interface functions */
#endif
#ifdef __AMIGA__
# include <exec/types.h>
# include <exec/execbase.h>
# include <proto/exec.h>
# include <proto/dos.h>
# ifdef HAVE_PROTO_BSDSOCKET_H
# include <proto/bsdsocket.h> /* ensure bsdsocket.library use */
# define select(a,b,c,d,e) WaitSelect(a,b,c,d,e,0)
# endif
#endif
#include <stdio.h>
#ifdef HAVE_ASSERT_H
#include <assert.h>
#endif
#ifdef __TANDEM /* for nsr-tandem-nsk systems */
#include <floss.h>
#endif
#ifndef STDC_HEADERS /* no standard C headers! */
#include <curl/stdcheaders.h>
#endif
#ifdef __POCC__
# include <sys/types.h>
# include <unistd.h>
# define sys_nerr EILSEQ
#endif
/*
* Salford-C kludge section (mostly borrowed from wxWidgets).
*/
#ifdef __SALFORDC__
#pragma suppress 353 /* Possible nested comments */
#pragma suppress 593 /* Define not used */
#pragma suppress 61 /* enum has no name */
#pragma suppress 106 /* unnamed, unused parameter */
#include <clib.h>
#endif
/* Default Windows file API selection. */
#ifdef _WIN32
# if defined(_MSC_VER) && (_INTEGRAL_MAX_BITS >= 64)
# define USE_WIN32_LARGE_FILES
# elif defined(__MINGW32__)
# define USE_WIN32_LARGE_FILES
# else
# define USE_WIN32_SMALL_FILES
# endif
#endif
/*
* Large file (>2Gb) support using WIN32 functions.
*/
#ifdef USE_WIN32_LARGE_FILES
# include <io.h>
# include <sys/types.h>
# include <sys/stat.h>
# undef lseek
# define lseek(fdes,offset,whence) _lseeki64(fdes, offset, whence)
# undef fstat
# define fstat(fdes,stp) _fstati64(fdes, stp)
# undef stat
# define stat(fname,stp) _stati64(fname, stp)
# define struct_stat struct _stati64
# define LSEEK_ERROR (__int64)-1
#endif
/*
* Small file (<2Gb) support using WIN32 functions.
*/
#ifdef USE_WIN32_SMALL_FILES
# include <io.h>
# include <sys/types.h>
# include <sys/stat.h>
# ifndef _WIN32_WCE
# undef lseek
# define lseek(fdes,offset,whence) _lseek(fdes, (long)offset, whence)
# define fstat(fdes,stp) _fstat(fdes, stp)
# define stat(fname,stp) _stat(fname, stp)
# define struct_stat struct _stat
# endif
# define LSEEK_ERROR (long)-1
#endif
#ifndef struct_stat
# define struct_stat struct stat
#endif
#ifndef LSEEK_ERROR
# define LSEEK_ERROR (off_t)-1
#endif
#ifndef SIZEOF_TIME_T
/* assume default size of time_t to be 32 bit */
#define SIZEOF_TIME_T 4
#endif
/*
* Default sizeof(off_t) in case it hasn't been defined in config file.
*/
#ifndef SIZEOF_OFF_T
# if defined(__VMS) && !defined(__VAX)
# if defined(_LARGEFILE)
# define SIZEOF_OFF_T 8
# endif
# elif defined(__OS400__) && defined(__ILEC400__)
# if defined(_LARGE_FILES)
# define SIZEOF_OFF_T 8
# endif
# elif defined(__MVS__) && defined(__IBMC__)
# if defined(_LP64) || defined(_LARGE_FILES)
# define SIZEOF_OFF_T 8
# endif
# elif defined(__370__) && defined(__IBMC__)
# if defined(_LP64) || defined(_LARGE_FILES)
# define SIZEOF_OFF_T 8
# endif
# endif
# ifndef SIZEOF_OFF_T
# define SIZEOF_OFF_T 4
# endif
#endif
#if (SIZEOF_CURL_OFF_T == 4)
# define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFF)
#else
/* assume CURL_SIZEOF_CURL_OFF_T == 8 */
# define CURL_OFF_T_MAX CURL_OFF_T_C(0x7FFFFFFFFFFFFFFF)
#endif
#define CURL_OFF_T_MIN (-CURL_OFF_T_MAX - CURL_OFF_T_C(1))
#if (SIZEOF_TIME_T == 4)
# ifdef HAVE_TIME_T_UNSIGNED
# define TIME_T_MAX UINT_MAX
# define TIME_T_MIN 0
# else
# define TIME_T_MAX INT_MAX
# define TIME_T_MIN INT_MIN
# endif
#else
# ifdef HAVE_TIME_T_UNSIGNED
# define TIME_T_MAX 0xFFFFFFFFFFFFFFFF
# define TIME_T_MIN 0
# else
# define TIME_T_MAX 0x7FFFFFFFFFFFFFFF
# define TIME_T_MIN (-TIME_T_MAX - 1)
# endif
#endif
#ifndef SIZE_T_MAX
/* some limits.h headers have this defined, some don't */
#if defined(SIZEOF_SIZE_T) && (SIZEOF_SIZE_T > 4)
#define SIZE_T_MAX 18446744073709551615U
#else
#define SIZE_T_MAX 4294967295U
#endif
#endif
/*
* Arg 2 type for gethostname in case it hasn't been defined in config file.
*/
#ifndef GETHOSTNAME_TYPE_ARG2
# ifdef USE_WINSOCK
# define GETHOSTNAME_TYPE_ARG2 int
# else
# define GETHOSTNAME_TYPE_ARG2 size_t
# endif
#endif
/* Below we define some functions. They should
4. set the SIGALRM signal timeout
5. set dir/file naming defines
*/
#ifdef WIN32
# define DIR_CHAR "\\"
# define DOT_CHAR "_"
#else /* WIN32 */
# ifdef MSDOS /* Watt-32 */
# include <sys/ioctl.h>
# define select(n,r,w,x,t) select_s(n,r,w,x,t)
# define ioctl(x,y,z) ioctlsocket(x,y,(char *)(z))
# include <tcp.h>
# ifdef word
# undef word
# endif
# ifdef byte
# undef byte
# endif
# endif /* MSDOS */
# ifdef __minix
/* Minix 3 versions up to at least 3.1.3 are missing these prototypes */
extern char *strtok_r(char *s, const char *delim, char **last);
extern struct tm *gmtime_r(const time_t * const timep, struct tm *tmp);
# endif
# define DIR_CHAR "/"
# ifndef DOT_CHAR
# define DOT_CHAR "."
# endif
# ifdef MSDOS
# undef DOT_CHAR
# define DOT_CHAR "_"
# endif
# ifndef fileno /* sunos 4 have this as a macro! */
int fileno(FILE *stream);
# endif
#endif /* WIN32 */
/*
* msvc 6.0 requires PSDK in order to have INET6_ADDRSTRLEN
* defined in ws2tcpip.h as well as to provide IPv6 support.
* Does not apply if lwIP is used.
*/
#if defined(_MSC_VER) && !defined(__POCC__) && !defined(USE_LWIPSOCK)
# if !defined(HAVE_WS2TCPIP_H) || \
((_MSC_VER < 1300) && !defined(INET6_ADDRSTRLEN))
# undef HAVE_GETADDRINFO_THREADSAFE
# undef HAVE_FREEADDRINFO
# undef HAVE_GETADDRINFO
# undef HAVE_GETNAMEINFO
# undef ENABLE_IPV6
# endif
#endif
/* ---------------------------------------------------------------- */
/* resolver specialty compile-time defines */
/* CURLRES_* defines to use in the host*.c sources */
/* ---------------------------------------------------------------- */
/*
* lcc-win32 doesn't have _beginthreadex(), lacks threads support.
*/
#if defined(__LCC__) && defined(WIN32)
# undef USE_THREADS_POSIX
# undef USE_THREADS_WIN32
#endif
/*
* MSVC threads support requires a multi-threaded runtime library.
* _beginthreadex() is not available in single-threaded ones.
*/
#if defined(_MSC_VER) && !defined(__POCC__) && !defined(_MT)
# undef USE_THREADS_POSIX
# undef USE_THREADS_WIN32
#endif
/*
* Mutually exclusive CURLRES_* definitions.
*/
#ifdef USE_ARES
# define CURLRES_ASYNCH
# define CURLRES_ARES
/* now undef the stock libc functions just to avoid them being used */
# undef HAVE_GETADDRINFO
# undef HAVE_FREEADDRINFO
# undef HAVE_GETHOSTBYNAME
#elif defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)
# define CURLRES_ASYNCH
# define CURLRES_THREADED
#else
# define CURLRES_SYNCH
#endif
#ifdef ENABLE_IPV6
# define CURLRES_IPV6
#else
# define CURLRES_IPV4
#endif
/* ---------------------------------------------------------------- */
/*
* When using WINSOCK, TELNET protocol requires WINSOCK2 API.
*/
#if defined(USE_WINSOCK) && (USE_WINSOCK != 2)
# define CURL_DISABLE_TELNET 1
#endif
/*
* msvc 6.0 does not have struct sockaddr_storage and
* does not define IPPROTO_ESP in winsock2.h. But both
* are available if PSDK is properly installed.
*/
#if defined(_MSC_VER) && !defined(__POCC__)
# if !defined(HAVE_WINSOCK2_H) || ((_MSC_VER < 1300) && !defined(IPPROTO_ESP))
# undef HAVE_STRUCT_SOCKADDR_STORAGE
# endif
#endif
/*
* Intentionally fail to build when using msvc 6.0 without PSDK installed.
* The brave of heart can circumvent this, defining ALLOW_MSVC6_WITHOUT_PSDK
* in lib/config-win32.h although absolutely discouraged and unsupported.
*/
#if defined(_MSC_VER) && !defined(__POCC__)
# if !defined(HAVE_WINDOWS_H) || ((_MSC_VER < 1300) && !defined(_FILETIME_))
# if !defined(ALLOW_MSVC6_WITHOUT_PSDK)
# error MSVC 6.0 requires "February 2003 Platform SDK" a.k.a. \
"Windows Server 2003 PSDK"
# else
# define CURL_DISABLE_LDAP 1
# endif
# endif
#endif
#ifdef NETWARE
int netware_init(void);
#ifndef __NOVELL_LIBC__
#include <sys/bsdskt.h>
#include <sys/timeval.h>
#endif
#endif
#if defined(HAVE_LIBIDN2) && defined(HAVE_IDN2_H) && !defined(USE_WIN32_IDN)
/* The lib and header are present */
#define USE_LIBIDN2
#endif
#if defined(USE_LIBIDN2) && defined(USE_WIN32_IDN)
#error "Both libidn2 and WinIDN are enabled, choose one."
#endif
#define LIBIDN_REQUIRED_VERSION "0.4.1"
#if defined(USE_GNUTLS) || defined(USE_OPENSSL) || defined(USE_NSS) || \
defined(USE_POLARSSL) || defined(USE_MBEDTLS) || \
defined(USE_CYASSL) || defined(USE_SCHANNEL) || \
defined(USE_SECTRANSP) || defined(USE_GSKIT) || defined(USE_MESALINK)
#define USE_SSL /* SSL support has been enabled */
#endif
/* Single point where USE_SPNEGO definition might be defined */
#if !defined(CURL_DISABLE_CRYPTO_AUTH) && \
(defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI))
#define USE_SPNEGO
#endif
/* Single point where USE_KERBEROS5 definition might be defined */
#if !defined(CURL_DISABLE_CRYPTO_AUTH) && \
(defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI))
#define USE_KERBEROS5
#endif
/* Single point where USE_NTLM definition might be defined */
#if !defined(CURL_DISABLE_NTLM) && !defined(CURL_DISABLE_CRYPTO_AUTH)
#if defined(USE_OPENSSL) || defined(USE_WINDOWS_SSPI) || \
defined(USE_GNUTLS) || defined(USE_NSS) || defined(USE_SECTRANSP) || \
defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO) || \
defined(USE_MBEDTLS)
#define USE_NTLM
# if defined(USE_MBEDTLS)
/* Get definition of MBEDTLS_MD4_C */
# include <mbedtls/md4.h>
# endif
#endif
#endif
#ifdef CURL_WANTS_CA_BUNDLE_ENV
#error "No longer supported. Set CURLOPT_CAINFO at runtime instead."
#endif
#if defined(USE_LIBSSH2) || defined(USE_LIBSSH) || defined(USE_WOLFSSH)
#define USE_SSH
#endif
/*
* Provide a mechanism to silence picky compilers, such as gcc 4.6+.
* Parameters should of course normally not be unused, but for example when
* we have multiple implementations of the same interface it may happen.
*/
#if defined(__GNUC__) && ((__GNUC__ >= 3) || \
((__GNUC__ == 2) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 7)))
# define UNUSED_PARAM __attribute__((__unused__))
# define WARN_UNUSED_RESULT __attribute__((warn_unused_result))
#else
# define UNUSED_PARAM /*NOTHING*/
# define WARN_UNUSED_RESULT
#endif
/*
* Include macros and defines that should only be processed once.
*/
#ifndef HEADER_CURL_SETUP_ONCE_H
#include "curl_setup_once.h"
#endif
/*
* Definition of our NOP statement Object-like macro
*/
#ifndef Curl_nop_stmt
# define Curl_nop_stmt do { } WHILE_FALSE
#endif
/*
* Ensure that Winsock and lwIP TCP/IP stacks are not mixed.
*/
#if defined(__LWIP_OPT_H__) || defined(LWIP_HDR_OPT_H)
# if defined(SOCKET) || \
defined(USE_WINSOCK) || \
defined(HAVE_WINSOCK_H) || \
defined(HAVE_WINSOCK2_H) || \
defined(HAVE_WS2TCPIP_H)
# error "Winsock and lwIP TCP/IP stack definitions shall not coexist!"
# endif
#endif
/*
* Portable symbolic names for Winsock shutdown() mode flags.
*/
#ifdef USE_WINSOCK
# define SHUT_RD 0x00
# define SHUT_WR 0x01
# define SHUT_RDWR 0x02
#endif
/* Define S_ISREG if not defined by system headers, f.e. MSVC */
#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
#endif
/* Define S_ISDIR if not defined by system headers, f.e. MSVC */
#if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
/* In Windows the default file mode is text but an application can override it.
Therefore we specify it explicitly. https://github.com/curl/curl/pull/258
*/
#if defined(WIN32) || defined(MSDOS)
#define FOPEN_READTEXT "rt"
#define FOPEN_WRITETEXT "wt"
#define FOPEN_APPENDTEXT "at"
#elif defined(__CYGWIN__)
/* Cygwin has specific behavior we need to address when WIN32 is not defined.
https://cygwin.com/cygwin-ug-net/using-textbinary.html
For write we want our output to have line endings of LF and be compatible with
other Cygwin utilities. For read we want to handle input that may have line
endings either CRLF or LF so 't' is appropriate.
*/
#define FOPEN_READTEXT "rt"
#define FOPEN_WRITETEXT "w"
#define FOPEN_APPENDTEXT "a"
#else
#define FOPEN_READTEXT "r"
#define FOPEN_WRITETEXT "w"
#define FOPEN_APPENDTEXT "a"
#endif
/* WinSock destroys recv() buffer when send() failed.
* Enabled automatically for Windows and for Cygwin as Cygwin sockets are
* wrappers for WinSock sockets. https://github.com/curl/curl/issues/657
* Define DONT_USE_RECV_BEFORE_SEND_WORKAROUND to force disable workaround.
*/
#if !defined(DONT_USE_RECV_BEFORE_SEND_WORKAROUND)
# if defined(WIN32) || defined(__CYGWIN__)
# define USE_RECV_BEFORE_SEND_WORKAROUND
# endif
#else /* DONT_USE_RECV_BEFORE_SEND_WORKAROUND */
# ifdef USE_RECV_BEFORE_SEND_WORKAROUND
# undef USE_RECV_BEFORE_SEND_WORKAROUND
# endif
#endif /* DONT_USE_RECV_BEFORE_SEND_WORKAROUND */
/* Detect Windows App environment which has a restricted access
* to the Win32 APIs. */
# if (defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0602)) || \
defined(WINAPI_FAMILY)
# include <winapifamily.h>
# if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) && \
!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
# define CURL_WINDOWS_APP
# endif
# endif
/* for systems that don't detect this in configure, use a sensible default */
#ifndef CURL_SA_FAMILY_T
#define CURL_SA_FAMILY_T unsigned short
#endif
/* Some convenience macros to get the larger/smaller value out of two given.
We prefix with CURL to prevent name collisions. */
#define CURLMAX(x,y) ((x)>(y)?(x):(y))
#define CURLMIN(x,y) ((x)<(y)?(x):(y))
/* Some versions of the Android SDK is missing the declaration */
#if defined(HAVE_GETPWUID_R) && defined(HAVE_DECL_GETPWUID_R_MISSING)
struct passwd;
int getpwuid_r(uid_t uid, struct passwd *pwd, char *buf,
size_t buflen, struct passwd **result);
#endif
#ifdef DEBUGBUILD
#define UNITTEST
#else
#define UNITTEST static
#endif
#endif /* HEADER_CURL_SETUP_H */

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#ifndef HEADER_CURL_SETUP_ONCE_H
#define HEADER_CURL_SETUP_ONCE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Inclusion of common header files.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <ctype.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef NEED_MALLOC_H
#include <malloc.h>
#endif
#ifdef NEED_MEMORY_H
#include <memory.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#ifdef TIME_WITH_SYS_TIME
#include <time.h>
#endif
#else
#ifdef HAVE_TIME_H
#include <time.h>
#endif
#endif
#ifdef WIN32
#include <io.h>
#include <fcntl.h>
#endif
#if defined(HAVE_STDBOOL_H) && defined(HAVE_BOOL_T)
#include <stdbool.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef __hpux
# if !defined(_XOPEN_SOURCE_EXTENDED) || defined(_KERNEL)
# ifdef _APP32_64BIT_OFF_T
# define OLD_APP32_64BIT_OFF_T _APP32_64BIT_OFF_T
# undef _APP32_64BIT_OFF_T
# else
# undef OLD_APP32_64BIT_OFF_T
# endif
# endif
#endif
#ifdef HAVE_SYS_SOCKET_H
#include <sys/socket.h>
#endif
#ifdef __hpux
# if !defined(_XOPEN_SOURCE_EXTENDED) || defined(_KERNEL)
# ifdef OLD_APP32_64BIT_OFF_T
# define _APP32_64BIT_OFF_T OLD_APP32_64BIT_OFF_T
# undef OLD_APP32_64BIT_OFF_T
# endif
# endif
#endif
/*
* Definition of timeval struct for platforms that don't have it.
*/
#ifndef HAVE_STRUCT_TIMEVAL
struct timeval {
long tv_sec;
long tv_usec;
};
#endif
/*
* If we have the MSG_NOSIGNAL define, make sure we use
* it as the fourth argument of function send()
*/
#ifdef HAVE_MSG_NOSIGNAL
#define SEND_4TH_ARG MSG_NOSIGNAL
#else
#define SEND_4TH_ARG 0
#endif
#if defined(__minix)
/* Minix doesn't support recv on TCP sockets */
#define sread(x,y,z) (ssize_t)read((RECV_TYPE_ARG1)(x), \
(RECV_TYPE_ARG2)(y), \
(RECV_TYPE_ARG3)(z))
#elif defined(HAVE_RECV)
/*
* The definitions for the return type and arguments types
* of functions recv() and send() belong and come from the
* configuration file. Do not define them in any other place.
*
* HAVE_RECV is defined if you have a function named recv()
* which is used to read incoming data from sockets. If your
* function has another name then don't define HAVE_RECV.
*
* If HAVE_RECV is defined then RECV_TYPE_ARG1, RECV_TYPE_ARG2,
* RECV_TYPE_ARG3, RECV_TYPE_ARG4 and RECV_TYPE_RETV must also
* be defined.
*
* HAVE_SEND is defined if you have a function named send()
* which is used to write outgoing data on a connected socket.
* If yours has another name then don't define HAVE_SEND.
*
* If HAVE_SEND is defined then SEND_TYPE_ARG1, SEND_QUAL_ARG2,
* SEND_TYPE_ARG2, SEND_TYPE_ARG3, SEND_TYPE_ARG4 and
* SEND_TYPE_RETV must also be defined.
*/
#if !defined(RECV_TYPE_ARG1) || \
!defined(RECV_TYPE_ARG2) || \
!defined(RECV_TYPE_ARG3) || \
!defined(RECV_TYPE_ARG4) || \
!defined(RECV_TYPE_RETV)
/* */
Error Missing_definition_of_return_and_arguments_types_of_recv
/* */
#else
#define sread(x,y,z) (ssize_t)recv((RECV_TYPE_ARG1)(x), \
(RECV_TYPE_ARG2)(y), \
(RECV_TYPE_ARG3)(z), \
(RECV_TYPE_ARG4)(0))
#endif
#else /* HAVE_RECV */
#ifndef sread
/* */
Error Missing_definition_of_macro_sread
/* */
#endif
#endif /* HAVE_RECV */
#if defined(__minix)
/* Minix doesn't support send on TCP sockets */
#define swrite(x,y,z) (ssize_t)write((SEND_TYPE_ARG1)(x), \
(SEND_TYPE_ARG2)(y), \
(SEND_TYPE_ARG3)(z))
#elif defined(HAVE_SEND)
#if !defined(SEND_TYPE_ARG1) || \
!defined(SEND_QUAL_ARG2) || \
!defined(SEND_TYPE_ARG2) || \
!defined(SEND_TYPE_ARG3) || \
!defined(SEND_TYPE_ARG4) || \
!defined(SEND_TYPE_RETV)
/* */
Error Missing_definition_of_return_and_arguments_types_of_send
/* */
#else
#define swrite(x,y,z) (ssize_t)send((SEND_TYPE_ARG1)(x), \
(SEND_QUAL_ARG2 SEND_TYPE_ARG2)(y), \
(SEND_TYPE_ARG3)(z), \
(SEND_TYPE_ARG4)(SEND_4TH_ARG))
#endif
#else /* HAVE_SEND */
#ifndef swrite
/* */
Error Missing_definition_of_macro_swrite
/* */
#endif
#endif /* HAVE_SEND */
#if 0
#if defined(HAVE_RECVFROM)
/*
* Currently recvfrom is only used on udp sockets.
*/
#if !defined(RECVFROM_TYPE_ARG1) || \
!defined(RECVFROM_TYPE_ARG2) || \
!defined(RECVFROM_TYPE_ARG3) || \
!defined(RECVFROM_TYPE_ARG4) || \
!defined(RECVFROM_TYPE_ARG5) || \
!defined(RECVFROM_TYPE_ARG6) || \
!defined(RECVFROM_TYPE_RETV)
/* */
Error Missing_definition_of_return_and_arguments_types_of_recvfrom
/* */
#else
#define sreadfrom(s,b,bl,f,fl) (ssize_t)recvfrom((RECVFROM_TYPE_ARG1) (s), \
(RECVFROM_TYPE_ARG2 *)(b), \
(RECVFROM_TYPE_ARG3) (bl), \
(RECVFROM_TYPE_ARG4) (0), \
(RECVFROM_TYPE_ARG5 *)(f), \
(RECVFROM_TYPE_ARG6 *)(fl))
#endif
#else /* HAVE_RECVFROM */
#ifndef sreadfrom
/* */
Error Missing_definition_of_macro_sreadfrom
/* */
#endif
#endif /* HAVE_RECVFROM */
#ifdef RECVFROM_TYPE_ARG6_IS_VOID
# define RECVFROM_ARG6_T int
#else
# define RECVFROM_ARG6_T RECVFROM_TYPE_ARG6
#endif
#endif /* if 0 */
/*
* Function-like macro definition used to close a socket.
*/
#if defined(HAVE_CLOSESOCKET)
# define sclose(x) closesocket((x))
#elif defined(HAVE_CLOSESOCKET_CAMEL)
# define sclose(x) CloseSocket((x))
#elif defined(HAVE_CLOSE_S)
# define sclose(x) close_s((x))
#elif defined(USE_LWIPSOCK)
# define sclose(x) lwip_close((x))
#else
# define sclose(x) close((x))
#endif
/*
* Stack-independent version of fcntl() on sockets:
*/
#if defined(USE_LWIPSOCK)
# define sfcntl lwip_fcntl
#else
# define sfcntl fcntl
#endif
#define TOLOWER(x) (tolower((int) ((unsigned char)x)))
/*
* 'bool' stuff compatible with HP-UX headers.
*/
#if defined(__hpux) && !defined(HAVE_BOOL_T)
typedef int bool;
# define false 0
# define true 1
# define HAVE_BOOL_T
#endif
/*
* 'bool' exists on platforms with <stdbool.h>, i.e. C99 platforms.
* On non-C99 platforms there's no bool, so define an enum for that.
* On C99 platforms 'false' and 'true' also exist. Enum uses a
* global namespace though, so use bool_false and bool_true.
*/
#ifndef HAVE_BOOL_T
typedef enum {
bool_false = 0,
bool_true = 1
} bool;
/*
* Use a define to let 'true' and 'false' use those enums. There
* are currently no use of true and false in libcurl proper, but
* there are some in the examples. This will cater for any later
* code happening to use true and false.
*/
# define false bool_false
# define true bool_true
# define HAVE_BOOL_T
#endif
/*
* Redefine TRUE and FALSE too, to catch current use. With this
* change, 'bool found = 1' will give a warning on MIPSPro, but
* 'bool found = TRUE' will not. Change tested on IRIX/MIPSPro,
* AIX 5.1/Xlc, Tru64 5.1/cc, w/make test too.
*/
#ifndef TRUE
#define TRUE true
#endif
#ifndef FALSE
#define FALSE false
#endif
#include "curl_ctype.h"
/*
* Macro WHILE_FALSE may be used to build single-iteration do-while loops,
* avoiding compiler warnings. Mostly intended for other macro definitions.
*/
#define WHILE_FALSE while(0)
#if defined(_MSC_VER) && !defined(__POCC__)
# undef WHILE_FALSE
# if (_MSC_VER < 1500)
# define WHILE_FALSE while(1, 0)
# else
# define WHILE_FALSE \
__pragma(warning(push)) \
__pragma(warning(disable:4127)) \
while(0) \
__pragma(warning(pop))
# endif
#endif
/*
* Typedef to 'int' if sig_atomic_t is not an available 'typedefed' type.
*/
#ifndef HAVE_SIG_ATOMIC_T
typedef int sig_atomic_t;
#define HAVE_SIG_ATOMIC_T
#endif
/*
* Convenience SIG_ATOMIC_T definition
*/
#ifdef HAVE_SIG_ATOMIC_T_VOLATILE
#define SIG_ATOMIC_T static sig_atomic_t
#else
#define SIG_ATOMIC_T static volatile sig_atomic_t
#endif
/*
* Default return type for signal handlers.
*/
#ifndef RETSIGTYPE
#define RETSIGTYPE void
#endif
/*
* Macro used to include code only in debug builds.
*/
#ifdef DEBUGBUILD
#define DEBUGF(x) x
#else
#define DEBUGF(x) do { } WHILE_FALSE
#endif
/*
* Macro used to include assertion code only in debug builds.
*/
#if defined(DEBUGBUILD) && defined(HAVE_ASSERT_H)
#define DEBUGASSERT(x) assert(x)
#else
#define DEBUGASSERT(x) do { } WHILE_FALSE
#endif
/*
* Macro SOCKERRNO / SET_SOCKERRNO() returns / sets the *socket-related* errno
* (or equivalent) on this platform to hide platform details to code using it.
*/
#ifdef USE_WINSOCK
#define SOCKERRNO ((int)WSAGetLastError())
#define SET_SOCKERRNO(x) (WSASetLastError((int)(x)))
#else
#define SOCKERRNO (errno)
#define SET_SOCKERRNO(x) (errno = (x))
#endif
/*
* Portable error number symbolic names defined to Winsock error codes.
*/
#ifdef USE_WINSOCK
#undef EBADF /* override definition in errno.h */
#define EBADF WSAEBADF
#undef EINTR /* override definition in errno.h */
#define EINTR WSAEINTR
#undef EINVAL /* override definition in errno.h */
#define EINVAL WSAEINVAL
#undef EWOULDBLOCK /* override definition in errno.h */
#define EWOULDBLOCK WSAEWOULDBLOCK
#undef EINPROGRESS /* override definition in errno.h */
#define EINPROGRESS WSAEINPROGRESS
#undef EALREADY /* override definition in errno.h */
#define EALREADY WSAEALREADY
#undef ENOTSOCK /* override definition in errno.h */
#define ENOTSOCK WSAENOTSOCK
#undef EDESTADDRREQ /* override definition in errno.h */
#define EDESTADDRREQ WSAEDESTADDRREQ
#undef EMSGSIZE /* override definition in errno.h */
#define EMSGSIZE WSAEMSGSIZE
#undef EPROTOTYPE /* override definition in errno.h */
#define EPROTOTYPE WSAEPROTOTYPE
#undef ENOPROTOOPT /* override definition in errno.h */
#define ENOPROTOOPT WSAENOPROTOOPT
#undef EPROTONOSUPPORT /* override definition in errno.h */
#define EPROTONOSUPPORT WSAEPROTONOSUPPORT
#define ESOCKTNOSUPPORT WSAESOCKTNOSUPPORT
#undef EOPNOTSUPP /* override definition in errno.h */
#define EOPNOTSUPP WSAEOPNOTSUPP
#define EPFNOSUPPORT WSAEPFNOSUPPORT
#undef EAFNOSUPPORT /* override definition in errno.h */
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#undef EADDRINUSE /* override definition in errno.h */
#define EADDRINUSE WSAEADDRINUSE
#undef EADDRNOTAVAIL /* override definition in errno.h */
#define EADDRNOTAVAIL WSAEADDRNOTAVAIL
#undef ENETDOWN /* override definition in errno.h */
#define ENETDOWN WSAENETDOWN
#undef ENETUNREACH /* override definition in errno.h */
#define ENETUNREACH WSAENETUNREACH
#undef ENETRESET /* override definition in errno.h */
#define ENETRESET WSAENETRESET
#undef ECONNABORTED /* override definition in errno.h */
#define ECONNABORTED WSAECONNABORTED
#undef ECONNRESET /* override definition in errno.h */
#define ECONNRESET WSAECONNRESET
#undef ENOBUFS /* override definition in errno.h */
#define ENOBUFS WSAENOBUFS
#undef EISCONN /* override definition in errno.h */
#define EISCONN WSAEISCONN
#undef ENOTCONN /* override definition in errno.h */
#define ENOTCONN WSAENOTCONN
#define ESHUTDOWN WSAESHUTDOWN
#define ETOOMANYREFS WSAETOOMANYREFS
#undef ETIMEDOUT /* override definition in errno.h */
#define ETIMEDOUT WSAETIMEDOUT
#undef ECONNREFUSED /* override definition in errno.h */
#define ECONNREFUSED WSAECONNREFUSED
#undef ELOOP /* override definition in errno.h */
#define ELOOP WSAELOOP
#ifndef ENAMETOOLONG /* possible previous definition in errno.h */
#define ENAMETOOLONG WSAENAMETOOLONG
#endif
#define EHOSTDOWN WSAEHOSTDOWN
#undef EHOSTUNREACH /* override definition in errno.h */
#define EHOSTUNREACH WSAEHOSTUNREACH
#ifndef ENOTEMPTY /* possible previous definition in errno.h */
#define ENOTEMPTY WSAENOTEMPTY
#endif
#define EPROCLIM WSAEPROCLIM
#define EUSERS WSAEUSERS
#define EDQUOT WSAEDQUOT
#define ESTALE WSAESTALE
#define EREMOTE WSAEREMOTE
#endif
/*
* Macro argv_item_t hides platform details to code using it.
*/
#ifdef __VMS
#define argv_item_t __char_ptr32
#else
#define argv_item_t char *
#endif
/*
* We use this ZERO_NULL to avoid picky compiler warnings,
* when assigning a NULL pointer to a function pointer var.
*/
#define ZERO_NULL 0
#endif /* HEADER_CURL_SETUP_ONCE_H */

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#ifndef HEADER_CURL_SHA256_H
#define HEADER_CURL_SHA256_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Florin Petriuc, <petriuc.florin@gmail.com>
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_CRYPTO_AUTH
void Curl_sha256it(unsigned char *outbuffer,
const unsigned char *input);
#endif
#endif /* HEADER_CURL_SHA256_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_WINDOWS_SSPI
#include <curl/curl.h>
#include "curl_sspi.h"
#include "curl_multibyte.h"
#include "system_win32.h"
#include "warnless.h"
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
/* We use our own typedef here since some headers might lack these */
typedef PSecurityFunctionTable (APIENTRY *INITSECURITYINTERFACE_FN)(VOID);
/* See definition of SECURITY_ENTRYPOINT in sspi.h */
#ifdef UNICODE
# ifdef _WIN32_WCE
# define SECURITYENTRYPOINT L"InitSecurityInterfaceW"
# else
# define SECURITYENTRYPOINT "InitSecurityInterfaceW"
# endif
#else
# define SECURITYENTRYPOINT "InitSecurityInterfaceA"
#endif
/* Handle of security.dll or secur32.dll, depending on Windows version */
HMODULE s_hSecDll = NULL;
/* Pointer to SSPI dispatch table */
PSecurityFunctionTable s_pSecFn = NULL;
/*
* Curl_sspi_global_init()
*
* This is used to load the Security Service Provider Interface (SSPI)
* dynamic link library portably across all Windows versions, without
* the need to directly link libcurl, nor the application using it, at
* build time.
*
* Once this function has been executed, Windows SSPI functions can be
* called through the Security Service Provider Interface dispatch table.
*
* Parameters:
*
* None.
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_sspi_global_init(void)
{
INITSECURITYINTERFACE_FN pInitSecurityInterface;
/* If security interface is not yet initialized try to do this */
if(!s_hSecDll) {
/* Security Service Provider Interface (SSPI) functions are located in
* security.dll on WinNT 4.0 and in secur32.dll on Win9x. Win2K and XP
* have both these DLLs (security.dll forwards calls to secur32.dll) */
/* Load SSPI dll into the address space of the calling process */
if(Curl_verify_windows_version(4, 0, PLATFORM_WINNT, VERSION_EQUAL))
s_hSecDll = Curl_load_library(TEXT("security.dll"));
else
s_hSecDll = Curl_load_library(TEXT("secur32.dll"));
if(!s_hSecDll)
return CURLE_FAILED_INIT;
/* Get address of the InitSecurityInterfaceA function from the SSPI dll */
pInitSecurityInterface =
CURLX_FUNCTION_CAST(INITSECURITYINTERFACE_FN,
(GetProcAddress(s_hSecDll, SECURITYENTRYPOINT)));
if(!pInitSecurityInterface)
return CURLE_FAILED_INIT;
/* Get pointer to Security Service Provider Interface dispatch table */
s_pSecFn = pInitSecurityInterface();
if(!s_pSecFn)
return CURLE_FAILED_INIT;
}
return CURLE_OK;
}
/*
* Curl_sspi_global_cleanup()
*
* This deinitializes the Security Service Provider Interface from libcurl.
*
* Parameters:
*
* None.
*/
void Curl_sspi_global_cleanup(void)
{
if(s_hSecDll) {
FreeLibrary(s_hSecDll);
s_hSecDll = NULL;
s_pSecFn = NULL;
}
}
/*
* Curl_create_sspi_identity()
*
* This is used to populate a SSPI identity structure based on the supplied
* username and password.
*
* Parameters:
*
* userp [in] - The user name in the format User or Domain\User.
* passwdp [in] - The user's password.
* identity [in/out] - The identity structure.
*
* Returns CURLE_OK on success.
*/
CURLcode Curl_create_sspi_identity(const char *userp, const char *passwdp,
SEC_WINNT_AUTH_IDENTITY *identity)
{
xcharp_u useranddomain;
xcharp_u user, dup_user;
xcharp_u domain, dup_domain;
xcharp_u passwd, dup_passwd;
size_t domlen = 0;
domain.const_tchar_ptr = TEXT("");
/* Initialize the identity */
memset(identity, 0, sizeof(*identity));
useranddomain.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)userp);
if(!useranddomain.tchar_ptr)
return CURLE_OUT_OF_MEMORY;
user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('\\'));
if(!user.const_tchar_ptr)
user.const_tchar_ptr = _tcschr(useranddomain.const_tchar_ptr, TEXT('/'));
if(user.tchar_ptr) {
domain.tchar_ptr = useranddomain.tchar_ptr;
domlen = user.tchar_ptr - useranddomain.tchar_ptr;
user.tchar_ptr++;
}
else {
user.tchar_ptr = useranddomain.tchar_ptr;
domain.const_tchar_ptr = TEXT("");
domlen = 0;
}
/* Setup the identity's user and length */
dup_user.tchar_ptr = _tcsdup(user.tchar_ptr);
if(!dup_user.tchar_ptr) {
Curl_unicodefree(useranddomain.tchar_ptr);
return CURLE_OUT_OF_MEMORY;
}
identity->User = dup_user.tbyte_ptr;
identity->UserLength = curlx_uztoul(_tcslen(dup_user.tchar_ptr));
dup_user.tchar_ptr = NULL;
/* Setup the identity's domain and length */
dup_domain.tchar_ptr = malloc(sizeof(TCHAR) * (domlen + 1));
if(!dup_domain.tchar_ptr) {
Curl_unicodefree(useranddomain.tchar_ptr);
return CURLE_OUT_OF_MEMORY;
}
_tcsncpy(dup_domain.tchar_ptr, domain.tchar_ptr, domlen);
*(dup_domain.tchar_ptr + domlen) = TEXT('\0');
identity->Domain = dup_domain.tbyte_ptr;
identity->DomainLength = curlx_uztoul(domlen);
dup_domain.tchar_ptr = NULL;
Curl_unicodefree(useranddomain.tchar_ptr);
/* Setup the identity's password and length */
passwd.tchar_ptr = Curl_convert_UTF8_to_tchar((char *)passwdp);
if(!passwd.tchar_ptr)
return CURLE_OUT_OF_MEMORY;
dup_passwd.tchar_ptr = _tcsdup(passwd.tchar_ptr);
if(!dup_passwd.tchar_ptr) {
Curl_unicodefree(passwd.tchar_ptr);
return CURLE_OUT_OF_MEMORY;
}
identity->Password = dup_passwd.tbyte_ptr;
identity->PasswordLength = curlx_uztoul(_tcslen(dup_passwd.tchar_ptr));
dup_passwd.tchar_ptr = NULL;
Curl_unicodefree(passwd.tchar_ptr);
/* Setup the identity's flags */
identity->Flags = SECFLAG_WINNT_AUTH_IDENTITY;
return CURLE_OK;
}
/*
* Curl_sspi_free_identity()
*
* This is used to free the contents of a SSPI identifier structure.
*
* Parameters:
*
* identity [in/out] - The identity structure.
*/
void Curl_sspi_free_identity(SEC_WINNT_AUTH_IDENTITY *identity)
{
if(identity) {
Curl_safefree(identity->User);
Curl_safefree(identity->Password);
Curl_safefree(identity->Domain);
}
}
#endif /* USE_WINDOWS_SSPI */

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#ifndef HEADER_CURL_SSPI_H
#define HEADER_CURL_SSPI_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifdef USE_WINDOWS_SSPI
#include <curl/curl.h>
/*
* When including the following three headers, it is mandatory to define either
* SECURITY_WIN32 or SECURITY_KERNEL, indicating who is compiling the code.
*/
#undef SECURITY_WIN32
#undef SECURITY_KERNEL
#define SECURITY_WIN32 1
#include <security.h>
#include <sspi.h>
#include <rpc.h>
CURLcode Curl_sspi_global_init(void);
void Curl_sspi_global_cleanup(void);
/* This is used to populate the domain in a SSPI identity structure */
CURLcode Curl_override_sspi_http_realm(const char *chlg,
SEC_WINNT_AUTH_IDENTITY *identity);
/* This is used to generate an SSPI identity structure */
CURLcode Curl_create_sspi_identity(const char *userp, const char *passwdp,
SEC_WINNT_AUTH_IDENTITY *identity);
/* This is used to free an SSPI identity structure */
void Curl_sspi_free_identity(SEC_WINNT_AUTH_IDENTITY *identity);
/* Forward-declaration of global variables defined in curl_sspi.c */
extern HMODULE s_hSecDll;
extern PSecurityFunctionTable s_pSecFn;
/* Provide some definitions missing in old headers */
#define SP_NAME_DIGEST "WDigest"
#define SP_NAME_NTLM "NTLM"
#define SP_NAME_NEGOTIATE "Negotiate"
#define SP_NAME_KERBEROS "Kerberos"
#ifndef ISC_REQ_USE_HTTP_STYLE
#define ISC_REQ_USE_HTTP_STYLE 0x01000000
#endif
#ifndef ISC_RET_REPLAY_DETECT
#define ISC_RET_REPLAY_DETECT 0x00000004
#endif
#ifndef ISC_RET_SEQUENCE_DETECT
#define ISC_RET_SEQUENCE_DETECT 0x00000008
#endif
#ifndef ISC_RET_CONFIDENTIALITY
#define ISC_RET_CONFIDENTIALITY 0x00000010
#endif
#ifndef ISC_RET_ALLOCATED_MEMORY
#define ISC_RET_ALLOCATED_MEMORY 0x00000100
#endif
#ifndef ISC_RET_STREAM
#define ISC_RET_STREAM 0x00008000
#endif
#ifndef SEC_E_INSUFFICIENT_MEMORY
# define SEC_E_INSUFFICIENT_MEMORY ((HRESULT)0x80090300L)
#endif
#ifndef SEC_E_INVALID_HANDLE
# define SEC_E_INVALID_HANDLE ((HRESULT)0x80090301L)
#endif
#ifndef SEC_E_UNSUPPORTED_FUNCTION
# define SEC_E_UNSUPPORTED_FUNCTION ((HRESULT)0x80090302L)
#endif
#ifndef SEC_E_TARGET_UNKNOWN
# define SEC_E_TARGET_UNKNOWN ((HRESULT)0x80090303L)
#endif
#ifndef SEC_E_INTERNAL_ERROR
# define SEC_E_INTERNAL_ERROR ((HRESULT)0x80090304L)
#endif
#ifndef SEC_E_SECPKG_NOT_FOUND
# define SEC_E_SECPKG_NOT_FOUND ((HRESULT)0x80090305L)
#endif
#ifndef SEC_E_NOT_OWNER
# define SEC_E_NOT_OWNER ((HRESULT)0x80090306L)
#endif
#ifndef SEC_E_CANNOT_INSTALL
# define SEC_E_CANNOT_INSTALL ((HRESULT)0x80090307L)
#endif
#ifndef SEC_E_INVALID_TOKEN
# define SEC_E_INVALID_TOKEN ((HRESULT)0x80090308L)
#endif
#ifndef SEC_E_CANNOT_PACK
# define SEC_E_CANNOT_PACK ((HRESULT)0x80090309L)
#endif
#ifndef SEC_E_QOP_NOT_SUPPORTED
# define SEC_E_QOP_NOT_SUPPORTED ((HRESULT)0x8009030AL)
#endif
#ifndef SEC_E_NO_IMPERSONATION
# define SEC_E_NO_IMPERSONATION ((HRESULT)0x8009030BL)
#endif
#ifndef SEC_E_LOGON_DENIED
# define SEC_E_LOGON_DENIED ((HRESULT)0x8009030CL)
#endif
#ifndef SEC_E_UNKNOWN_CREDENTIALS
# define SEC_E_UNKNOWN_CREDENTIALS ((HRESULT)0x8009030DL)
#endif
#ifndef SEC_E_NO_CREDENTIALS
# define SEC_E_NO_CREDENTIALS ((HRESULT)0x8009030EL)
#endif
#ifndef SEC_E_MESSAGE_ALTERED
# define SEC_E_MESSAGE_ALTERED ((HRESULT)0x8009030FL)
#endif
#ifndef SEC_E_OUT_OF_SEQUENCE
# define SEC_E_OUT_OF_SEQUENCE ((HRESULT)0x80090310L)
#endif
#ifndef SEC_E_NO_AUTHENTICATING_AUTHORITY
# define SEC_E_NO_AUTHENTICATING_AUTHORITY ((HRESULT)0x80090311L)
#endif
#ifndef SEC_E_BAD_PKGID
# define SEC_E_BAD_PKGID ((HRESULT)0x80090316L)
#endif
#ifndef SEC_E_CONTEXT_EXPIRED
# define SEC_E_CONTEXT_EXPIRED ((HRESULT)0x80090317L)
#endif
#ifndef SEC_E_INCOMPLETE_MESSAGE
# define SEC_E_INCOMPLETE_MESSAGE ((HRESULT)0x80090318L)
#endif
#ifndef SEC_E_INCOMPLETE_CREDENTIALS
# define SEC_E_INCOMPLETE_CREDENTIALS ((HRESULT)0x80090320L)
#endif
#ifndef SEC_E_BUFFER_TOO_SMALL
# define SEC_E_BUFFER_TOO_SMALL ((HRESULT)0x80090321L)
#endif
#ifndef SEC_E_WRONG_PRINCIPAL
# define SEC_E_WRONG_PRINCIPAL ((HRESULT)0x80090322L)
#endif
#ifndef SEC_E_TIME_SKEW
# define SEC_E_TIME_SKEW ((HRESULT)0x80090324L)
#endif
#ifndef SEC_E_UNTRUSTED_ROOT
# define SEC_E_UNTRUSTED_ROOT ((HRESULT)0x80090325L)
#endif
#ifndef SEC_E_ILLEGAL_MESSAGE
# define SEC_E_ILLEGAL_MESSAGE ((HRESULT)0x80090326L)
#endif
#ifndef SEC_E_CERT_UNKNOWN
# define SEC_E_CERT_UNKNOWN ((HRESULT)0x80090327L)
#endif
#ifndef SEC_E_CERT_EXPIRED
# define SEC_E_CERT_EXPIRED ((HRESULT)0x80090328L)
#endif
#ifndef SEC_E_ENCRYPT_FAILURE
# define SEC_E_ENCRYPT_FAILURE ((HRESULT)0x80090329L)
#endif
#ifndef SEC_E_DECRYPT_FAILURE
# define SEC_E_DECRYPT_FAILURE ((HRESULT)0x80090330L)
#endif
#ifndef SEC_E_ALGORITHM_MISMATCH
# define SEC_E_ALGORITHM_MISMATCH ((HRESULT)0x80090331L)
#endif
#ifndef SEC_E_SECURITY_QOS_FAILED
# define SEC_E_SECURITY_QOS_FAILED ((HRESULT)0x80090332L)
#endif
#ifndef SEC_E_UNFINISHED_CONTEXT_DELETED
# define SEC_E_UNFINISHED_CONTEXT_DELETED ((HRESULT)0x80090333L)
#endif
#ifndef SEC_E_NO_TGT_REPLY
# define SEC_E_NO_TGT_REPLY ((HRESULT)0x80090334L)
#endif
#ifndef SEC_E_NO_IP_ADDRESSES
# define SEC_E_NO_IP_ADDRESSES ((HRESULT)0x80090335L)
#endif
#ifndef SEC_E_WRONG_CREDENTIAL_HANDLE
# define SEC_E_WRONG_CREDENTIAL_HANDLE ((HRESULT)0x80090336L)
#endif
#ifndef SEC_E_CRYPTO_SYSTEM_INVALID
# define SEC_E_CRYPTO_SYSTEM_INVALID ((HRESULT)0x80090337L)
#endif
#ifndef SEC_E_MAX_REFERRALS_EXCEEDED
# define SEC_E_MAX_REFERRALS_EXCEEDED ((HRESULT)0x80090338L)
#endif
#ifndef SEC_E_MUST_BE_KDC
# define SEC_E_MUST_BE_KDC ((HRESULT)0x80090339L)
#endif
#ifndef SEC_E_STRONG_CRYPTO_NOT_SUPPORTED
# define SEC_E_STRONG_CRYPTO_NOT_SUPPORTED ((HRESULT)0x8009033AL)
#endif
#ifndef SEC_E_TOO_MANY_PRINCIPALS
# define SEC_E_TOO_MANY_PRINCIPALS ((HRESULT)0x8009033BL)
#endif
#ifndef SEC_E_NO_PA_DATA
# define SEC_E_NO_PA_DATA ((HRESULT)0x8009033CL)
#endif
#ifndef SEC_E_PKINIT_NAME_MISMATCH
# define SEC_E_PKINIT_NAME_MISMATCH ((HRESULT)0x8009033DL)
#endif
#ifndef SEC_E_SMARTCARD_LOGON_REQUIRED
# define SEC_E_SMARTCARD_LOGON_REQUIRED ((HRESULT)0x8009033EL)
#endif
#ifndef SEC_E_SHUTDOWN_IN_PROGRESS
# define SEC_E_SHUTDOWN_IN_PROGRESS ((HRESULT)0x8009033FL)
#endif
#ifndef SEC_E_KDC_INVALID_REQUEST
# define SEC_E_KDC_INVALID_REQUEST ((HRESULT)0x80090340L)
#endif
#ifndef SEC_E_KDC_UNABLE_TO_REFER
# define SEC_E_KDC_UNABLE_TO_REFER ((HRESULT)0x80090341L)
#endif
#ifndef SEC_E_KDC_UNKNOWN_ETYPE
# define SEC_E_KDC_UNKNOWN_ETYPE ((HRESULT)0x80090342L)
#endif
#ifndef SEC_E_UNSUPPORTED_PREAUTH
# define SEC_E_UNSUPPORTED_PREAUTH ((HRESULT)0x80090343L)
#endif
#ifndef SEC_E_DELEGATION_REQUIRED
# define SEC_E_DELEGATION_REQUIRED ((HRESULT)0x80090345L)
#endif
#ifndef SEC_E_BAD_BINDINGS
# define SEC_E_BAD_BINDINGS ((HRESULT)0x80090346L)
#endif
#ifndef SEC_E_MULTIPLE_ACCOUNTS
# define SEC_E_MULTIPLE_ACCOUNTS ((HRESULT)0x80090347L)
#endif
#ifndef SEC_E_NO_KERB_KEY
# define SEC_E_NO_KERB_KEY ((HRESULT)0x80090348L)
#endif
#ifndef SEC_E_CERT_WRONG_USAGE
# define SEC_E_CERT_WRONG_USAGE ((HRESULT)0x80090349L)
#endif
#ifndef SEC_E_DOWNGRADE_DETECTED
# define SEC_E_DOWNGRADE_DETECTED ((HRESULT)0x80090350L)
#endif
#ifndef SEC_E_SMARTCARD_CERT_REVOKED
# define SEC_E_SMARTCARD_CERT_REVOKED ((HRESULT)0x80090351L)
#endif
#ifndef SEC_E_ISSUING_CA_UNTRUSTED
# define SEC_E_ISSUING_CA_UNTRUSTED ((HRESULT)0x80090352L)
#endif
#ifndef SEC_E_REVOCATION_OFFLINE_C
# define SEC_E_REVOCATION_OFFLINE_C ((HRESULT)0x80090353L)
#endif
#ifndef SEC_E_PKINIT_CLIENT_FAILURE
# define SEC_E_PKINIT_CLIENT_FAILURE ((HRESULT)0x80090354L)
#endif
#ifndef SEC_E_SMARTCARD_CERT_EXPIRED
# define SEC_E_SMARTCARD_CERT_EXPIRED ((HRESULT)0x80090355L)
#endif
#ifndef SEC_E_NO_S4U_PROT_SUPPORT
# define SEC_E_NO_S4U_PROT_SUPPORT ((HRESULT)0x80090356L)
#endif
#ifndef SEC_E_CROSSREALM_DELEGATION_FAILURE
# define SEC_E_CROSSREALM_DELEGATION_FAILURE ((HRESULT)0x80090357L)
#endif
#ifndef SEC_E_REVOCATION_OFFLINE_KDC
# define SEC_E_REVOCATION_OFFLINE_KDC ((HRESULT)0x80090358L)
#endif
#ifndef SEC_E_ISSUING_CA_UNTRUSTED_KDC
# define SEC_E_ISSUING_CA_UNTRUSTED_KDC ((HRESULT)0x80090359L)
#endif
#ifndef SEC_E_KDC_CERT_EXPIRED
# define SEC_E_KDC_CERT_EXPIRED ((HRESULT)0x8009035AL)
#endif
#ifndef SEC_E_KDC_CERT_REVOKED
# define SEC_E_KDC_CERT_REVOKED ((HRESULT)0x8009035BL)
#endif
#ifndef SEC_E_INVALID_PARAMETER
# define SEC_E_INVALID_PARAMETER ((HRESULT)0x8009035DL)
#endif
#ifndef SEC_E_DELEGATION_POLICY
# define SEC_E_DELEGATION_POLICY ((HRESULT)0x8009035EL)
#endif
#ifndef SEC_E_POLICY_NLTM_ONLY
# define SEC_E_POLICY_NLTM_ONLY ((HRESULT)0x8009035FL)
#endif
#ifndef SEC_I_CONTINUE_NEEDED
# define SEC_I_CONTINUE_NEEDED ((HRESULT)0x00090312L)
#endif
#ifndef SEC_I_COMPLETE_NEEDED
# define SEC_I_COMPLETE_NEEDED ((HRESULT)0x00090313L)
#endif
#ifndef SEC_I_COMPLETE_AND_CONTINUE
# define SEC_I_COMPLETE_AND_CONTINUE ((HRESULT)0x00090314L)
#endif
#ifndef SEC_I_LOCAL_LOGON
# define SEC_I_LOCAL_LOGON ((HRESULT)0x00090315L)
#endif
#ifndef SEC_I_CONTEXT_EXPIRED
# define SEC_I_CONTEXT_EXPIRED ((HRESULT)0x00090317L)
#endif
#ifndef SEC_I_INCOMPLETE_CREDENTIALS
# define SEC_I_INCOMPLETE_CREDENTIALS ((HRESULT)0x00090320L)
#endif
#ifndef SEC_I_RENEGOTIATE
# define SEC_I_RENEGOTIATE ((HRESULT)0x00090321L)
#endif
#ifndef SEC_I_NO_LSA_CONTEXT
# define SEC_I_NO_LSA_CONTEXT ((HRESULT)0x00090323L)
#endif
#ifndef SEC_I_SIGNATURE_NEEDED
# define SEC_I_SIGNATURE_NEEDED ((HRESULT)0x0009035CL)
#endif
#ifndef CRYPT_E_REVOKED
# define CRYPT_E_REVOKED ((HRESULT)0x80092010L)
#endif
#ifdef UNICODE
# define SECFLAG_WINNT_AUTH_IDENTITY \
(unsigned long)SEC_WINNT_AUTH_IDENTITY_UNICODE
#else
# define SECFLAG_WINNT_AUTH_IDENTITY \
(unsigned long)SEC_WINNT_AUTH_IDENTITY_ANSI
#endif
/*
* Definitions required from ntsecapi.h are directly provided below this point
* to avoid including ntsecapi.h due to a conflict with OpenSSL's safestack.h
*/
#define KERB_WRAP_NO_ENCRYPT 0x80000001
#endif /* USE_WINDOWS_SSPI */
#endif /* HEADER_CURL_SSPI_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#if defined(USE_THREADS_POSIX)
# ifdef HAVE_PTHREAD_H
# include <pthread.h>
# endif
#elif defined(USE_THREADS_WIN32)
# ifdef HAVE_PROCESS_H
# include <process.h>
# endif
#endif
#include "curl_threads.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
#if defined(USE_THREADS_POSIX)
struct curl_actual_call {
unsigned int (*func)(void *);
void *arg;
};
static void *curl_thread_create_thunk(void *arg)
{
struct curl_actual_call * ac = arg;
unsigned int (*func)(void *) = ac->func;
void *real_arg = ac->arg;
free(ac);
(*func)(real_arg);
return 0;
}
curl_thread_t Curl_thread_create(unsigned int (*func) (void *), void *arg)
{
curl_thread_t t = malloc(sizeof(pthread_t));
struct curl_actual_call *ac = malloc(sizeof(struct curl_actual_call));
if(!(ac && t))
goto err;
ac->func = func;
ac->arg = arg;
if(pthread_create(t, NULL, curl_thread_create_thunk, ac) != 0)
goto err;
return t;
err:
free(t);
free(ac);
return curl_thread_t_null;
}
void Curl_thread_destroy(curl_thread_t hnd)
{
if(hnd != curl_thread_t_null) {
pthread_detach(*hnd);
free(hnd);
}
}
int Curl_thread_join(curl_thread_t *hnd)
{
int ret = (pthread_join(**hnd, NULL) == 0);
free(*hnd);
*hnd = curl_thread_t_null;
return ret;
}
#elif defined(USE_THREADS_WIN32)
/* !checksrc! disable SPACEBEFOREPAREN 1 */
curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void *),
void *arg)
{
#ifdef _WIN32_WCE
typedef HANDLE curl_win_thread_handle_t;
#elif defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR)
typedef unsigned long curl_win_thread_handle_t;
#else
typedef uintptr_t curl_win_thread_handle_t;
#endif
curl_thread_t t;
curl_win_thread_handle_t thread_handle;
#ifdef _WIN32_WCE
thread_handle = CreateThread(NULL, 0, func, arg, 0, NULL);
#else
thread_handle = _beginthreadex(NULL, 0, func, arg, 0, NULL);
#endif
t = (curl_thread_t)thread_handle;
if((t == 0) || (t == LongToHandle(-1L))) {
#ifdef _WIN32_WCE
DWORD gle = GetLastError();
errno = ((gle == ERROR_ACCESS_DENIED ||
gle == ERROR_NOT_ENOUGH_MEMORY) ?
EACCES : EINVAL);
#endif
return curl_thread_t_null;
}
return t;
}
void Curl_thread_destroy(curl_thread_t hnd)
{
CloseHandle(hnd);
}
int Curl_thread_join(curl_thread_t *hnd)
{
#if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
(_WIN32_WINNT < _WIN32_WINNT_VISTA)
int ret = (WaitForSingleObject(*hnd, INFINITE) == WAIT_OBJECT_0);
#else
int ret = (WaitForSingleObjectEx(*hnd, INFINITE, FALSE) == WAIT_OBJECT_0);
#endif
Curl_thread_destroy(*hnd);
*hnd = curl_thread_t_null;
return ret;
}
#endif /* USE_THREADS_* */

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#ifndef HEADER_CURL_THREADS_H
#define HEADER_CURL_THREADS_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_THREADS_POSIX)
# define CURL_STDCALL
# define curl_mutex_t pthread_mutex_t
# define curl_thread_t pthread_t *
# define curl_thread_t_null (pthread_t *)0
# define Curl_mutex_init(m) pthread_mutex_init(m, NULL)
# define Curl_mutex_acquire(m) pthread_mutex_lock(m)
# define Curl_mutex_release(m) pthread_mutex_unlock(m)
# define Curl_mutex_destroy(m) pthread_mutex_destroy(m)
#elif defined(USE_THREADS_WIN32)
# define CURL_STDCALL __stdcall
# define curl_mutex_t CRITICAL_SECTION
# define curl_thread_t HANDLE
# define curl_thread_t_null (HANDLE)0
# if !defined(_WIN32_WINNT) || !defined(_WIN32_WINNT_VISTA) || \
(_WIN32_WINNT < _WIN32_WINNT_VISTA) || \
(defined(__MINGW32__) && !defined(__MINGW64_VERSION_MAJOR))
# define Curl_mutex_init(m) InitializeCriticalSection(m)
# else
# define Curl_mutex_init(m) InitializeCriticalSectionEx(m, 0, 1)
# endif
# define Curl_mutex_acquire(m) EnterCriticalSection(m)
# define Curl_mutex_release(m) LeaveCriticalSection(m)
# define Curl_mutex_destroy(m) DeleteCriticalSection(m)
#endif
#if defined(USE_THREADS_POSIX) || defined(USE_THREADS_WIN32)
/* !checksrc! disable SPACEBEFOREPAREN 1 */
curl_thread_t Curl_thread_create(unsigned int (CURL_STDCALL *func) (void *),
void *arg);
void Curl_thread_destroy(curl_thread_t hnd);
int Curl_thread_join(curl_thread_t *hnd);
#endif /* USE_THREADS_POSIX || USE_THREADS_WIN32 */
#endif /* HEADER_CURL_THREADS_H */

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#ifndef HEADER_CURL_CURLX_H
#define HEADER_CURL_CURLX_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Defines protos and includes all header files that provide the curlx_*
* functions. The curlx_* functions are not part of the libcurl API, but are
* stand-alone functions whose sources can be built and linked by apps if need
* be.
*/
#include <curl/mprintf.h>
/* this is still a public header file that provides the curl_mprintf()
functions while they still are offered publicly. They will be made library-
private one day */
#include "strcase.h"
/* "strcase.h" provides the strcasecompare protos */
#include "strtoofft.h"
/* "strtoofft.h" provides this function: curlx_strtoofft(), returns a
curl_off_t number from a given string.
*/
#include "nonblock.h"
/* "nonblock.h" provides curlx_nonblock() */
#include "warnless.h"
/* "warnless.h" provides functions:
curlx_ultous()
curlx_ultouc()
curlx_uztosi()
*/
/* Now setup curlx_ * names for the functions that are to become curlx_ and
be removed from a future libcurl official API:
curlx_getenv
curlx_mprintf (and its variations)
curlx_strcasecompare
curlx_strncasecompare
*/
#define curlx_getenv curl_getenv
#define curlx_mvsnprintf curl_mvsnprintf
#define curlx_msnprintf curl_msnprintf
#define curlx_maprintf curl_maprintf
#define curlx_mvaprintf curl_mvaprintf
#define curlx_msprintf curl_msprintf
#define curlx_mprintf curl_mprintf
#define curlx_mfprintf curl_mfprintf
#define curlx_mvsprintf curl_mvsprintf
#define curlx_mvprintf curl_mvprintf
#define curlx_mvfprintf curl_mvfprintf
#ifdef ENABLE_CURLX_PRINTF
/* If this define is set, we define all "standard" printf() functions to use
the curlx_* version instead. It makes the source code transparent and
easier to understand/patch. Undefine them first. */
# undef printf
# undef fprintf
# undef sprintf
# undef msnprintf
# undef vprintf
# undef vfprintf
# undef vsprintf
# undef mvsnprintf
# undef aprintf
# undef vaprintf
# define printf curlx_mprintf
# define fprintf curlx_mfprintf
# define sprintf curlx_msprintf
# define msnprintf curlx_msnprintf
# define vprintf curlx_mvprintf
# define vfprintf curlx_mvfprintf
# define mvsnprintf curlx_mvsnprintf
# define aprintf curlx_maprintf
# define vaprintf curlx_mvaprintf
#endif /* ENABLE_CURLX_PRINTF */
#endif /* HEADER_CURL_CURLX_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_DICT
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_SELECT_H
#include <sys/select.h>
#endif
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "escape.h"
#include "progress.h"
#include "dict.h"
#include "strcase.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Forward declarations.
*/
static CURLcode dict_do(struct connectdata *conn, bool *done);
/*
* DICT protocol handler.
*/
const struct Curl_handler Curl_handler_dict = {
"DICT", /* scheme */
ZERO_NULL, /* setup_connection */
dict_do, /* do_it */
ZERO_NULL, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_DICT, /* defport */
CURLPROTO_DICT, /* protocol */
PROTOPT_NONE | PROTOPT_NOURLQUERY /* flags */
};
static char *unescape_word(struct Curl_easy *data, const char *inputbuff)
{
char *newp = NULL;
char *dictp;
size_t len;
CURLcode result = Curl_urldecode(data, inputbuff, 0, &newp, &len, FALSE);
if(!newp || result)
return NULL;
dictp = malloc(len*2 + 1); /* add one for terminating zero */
if(dictp) {
char *ptr;
char ch;
int olen = 0;
/* According to RFC2229 section 2.2, these letters need to be escaped with
\[letter] */
for(ptr = newp;
(ch = *ptr) != 0;
ptr++) {
if((ch <= 32) || (ch == 127) ||
(ch == '\'') || (ch == '\"') || (ch == '\\')) {
dictp[olen++] = '\\';
}
dictp[olen++] = ch;
}
dictp[olen] = 0;
}
free(newp);
return dictp;
}
static CURLcode dict_do(struct connectdata *conn, bool *done)
{
char *word;
char *eword;
char *ppath;
char *database = NULL;
char *strategy = NULL;
char *nthdef = NULL; /* This is not part of the protocol, but required
by RFC 2229 */
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
char *path = data->state.up.path;
*done = TRUE; /* unconditionally */
if(conn->bits.user_passwd) {
/* AUTH is missing */
}
if(strncasecompare(path, DICT_MATCH, sizeof(DICT_MATCH)-1) ||
strncasecompare(path, DICT_MATCH2, sizeof(DICT_MATCH2)-1) ||
strncasecompare(path, DICT_MATCH3, sizeof(DICT_MATCH3)-1)) {
word = strchr(path, ':');
if(word) {
word++;
database = strchr(word, ':');
if(database) {
*database++ = (char)0;
strategy = strchr(database, ':');
if(strategy) {
*strategy++ = (char)0;
nthdef = strchr(strategy, ':');
if(nthdef) {
*nthdef = (char)0;
}
}
}
}
if((word == NULL) || (*word == (char)0)) {
infof(data, "lookup word is missing\n");
word = (char *)"default";
}
if((database == NULL) || (*database == (char)0)) {
database = (char *)"!";
}
if((strategy == NULL) || (*strategy == (char)0)) {
strategy = (char *)".";
}
eword = unescape_word(data, word);
if(!eword)
return CURLE_OUT_OF_MEMORY;
result = Curl_sendf(sockfd, conn,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n"
"MATCH "
"%s " /* database */
"%s " /* strategy */
"%s\r\n" /* word */
"QUIT\r\n",
database,
strategy,
eword
);
free(eword);
if(result) {
failf(data, "Failed sending DICT request");
return result;
}
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1); /* no upload */
}
else if(strncasecompare(path, DICT_DEFINE, sizeof(DICT_DEFINE)-1) ||
strncasecompare(path, DICT_DEFINE2, sizeof(DICT_DEFINE2)-1) ||
strncasecompare(path, DICT_DEFINE3, sizeof(DICT_DEFINE3)-1)) {
word = strchr(path, ':');
if(word) {
word++;
database = strchr(word, ':');
if(database) {
*database++ = (char)0;
nthdef = strchr(database, ':');
if(nthdef) {
*nthdef = (char)0;
}
}
}
if((word == NULL) || (*word == (char)0)) {
infof(data, "lookup word is missing\n");
word = (char *)"default";
}
if((database == NULL) || (*database == (char)0)) {
database = (char *)"!";
}
eword = unescape_word(data, word);
if(!eword)
return CURLE_OUT_OF_MEMORY;
result = Curl_sendf(sockfd, conn,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n"
"DEFINE "
"%s " /* database */
"%s\r\n" /* word */
"QUIT\r\n",
database,
eword);
free(eword);
if(result) {
failf(data, "Failed sending DICT request");
return result;
}
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
}
else {
ppath = strchr(path, '/');
if(ppath) {
int i;
ppath++;
for(i = 0; ppath[i]; i++) {
if(ppath[i] == ':')
ppath[i] = ' ';
}
result = Curl_sendf(sockfd, conn,
"CLIENT " LIBCURL_NAME " " LIBCURL_VERSION "\r\n"
"%s\r\n"
"QUIT\r\n", ppath);
if(result) {
failf(data, "Failed sending DICT request");
return result;
}
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
}
}
return CURLE_OK;
}
#endif /*CURL_DISABLE_DICT*/

29
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#ifndef HEADER_CURL_DICT_H
#define HEADER_CURL_DICT_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_DICT
extern const struct Curl_handler Curl_handler_dict;
#endif
#endif /* HEADER_CURL_DICT_H */

967
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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2018 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_DOH
#include "urldata.h"
#include "curl_addrinfo.h"
#include "doh.h"
#include "sendf.h"
#include "multiif.h"
#include "url.h"
#include "share.h"
#include "curl_base64.h"
#include "connect.h"
#include "strdup.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define DNS_CLASS_IN 0x01
#define DOH_MAX_RESPONSE_SIZE 3000 /* bytes */
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static const char * const errors[]={
"",
"Bad label",
"Out of range",
"Label loop",
"Too small",
"Out of memory",
"RDATA length",
"Malformat",
"Bad RCODE",
"Unexpected TYPE",
"Unexpected CLASS",
"No content",
"Bad ID"
};
static const char *doh_strerror(DOHcode code)
{
if((code >= DOH_OK) && (code <= DOH_DNS_BAD_ID))
return errors[code];
return "bad error code";
}
#endif
#ifdef DEBUGBUILD
#define UNITTEST
#else
#define UNITTEST static
#endif
UNITTEST DOHcode doh_encode(const char *host,
DNStype dnstype,
unsigned char *dnsp, /* buffer */
size_t len, /* buffer size */
size_t *olen) /* output length */
{
size_t hostlen = strlen(host);
unsigned char *orig = dnsp;
const char *hostp = host;
if(len < (12 + hostlen + 4))
return DOH_TOO_SMALL_BUFFER;
*dnsp++ = 0; /* 16 bit id */
*dnsp++ = 0;
*dnsp++ = 0x01; /* |QR| Opcode |AA|TC|RD| Set the RD bit */
*dnsp++ = '\0'; /* |RA| Z | RCODE | */
*dnsp++ = '\0';
*dnsp++ = 1; /* QDCOUNT (number of entries in the question section) */
*dnsp++ = '\0';
*dnsp++ = '\0'; /* ANCOUNT */
*dnsp++ = '\0';
*dnsp++ = '\0'; /* NSCOUNT */
*dnsp++ = '\0';
*dnsp++ = '\0'; /* ARCOUNT */
/* store a QNAME */
do {
char *dot = strchr(hostp, '.');
size_t labellen;
bool found = false;
if(dot) {
found = true;
labellen = dot - hostp;
}
else
labellen = strlen(hostp);
if(labellen > 63) {
/* too long label, error out */
*olen = 0;
return DOH_DNS_BAD_LABEL;
}
*dnsp++ = (unsigned char)labellen;
memcpy(dnsp, hostp, labellen);
dnsp += labellen;
hostp += labellen + 1;
if(!found) {
*dnsp++ = 0; /* terminating zero */
break;
}
} while(1);
*dnsp++ = '\0'; /* upper 8 bit TYPE */
*dnsp++ = (unsigned char)dnstype;
*dnsp++ = '\0'; /* upper 8 bit CLASS */
*dnsp++ = DNS_CLASS_IN; /* IN - "the Internet" */
*olen = dnsp - orig;
return DOH_OK;
}
static size_t
doh_write_cb(void *contents, size_t size, size_t nmemb, void *userp)
{
size_t realsize = size * nmemb;
struct dohresponse *mem = (struct dohresponse *)userp;
if((mem->size + realsize) > DOH_MAX_RESPONSE_SIZE)
/* suspiciously much for us */
return 0;
mem->memory = Curl_saferealloc(mem->memory, mem->size + realsize);
if(!mem->memory)
/* out of memory! */
return 0;
memcpy(&(mem->memory[mem->size]), contents, realsize);
mem->size += realsize;
return realsize;
}
/* called from multi.c when this DOH transfer is complete */
static int Curl_doh_done(struct Curl_easy *doh, CURLcode result)
{
struct Curl_easy *data = doh->set.dohfor;
/* so one of the DOH request done for the 'data' transfer is now complete! */
data->req.doh.pending--;
infof(data, "a DOH request is completed, %u to go\n", data->req.doh.pending);
if(result)
infof(data, "DOH request %s\n", curl_easy_strerror(result));
if(!data->req.doh.pending) {
/* DOH completed */
curl_slist_free_all(data->req.doh.headers);
data->req.doh.headers = NULL;
Curl_expire(data, 0, EXPIRE_RUN_NOW);
}
return 0;
}
#define ERROR_CHECK_SETOPT(x,y) \
do { \
result = curl_easy_setopt(doh, x, y); \
if(result) \
goto error; \
} WHILE_FALSE
static CURLcode dohprobe(struct Curl_easy *data,
struct dnsprobe *p, DNStype dnstype,
const char *host,
const char *url, CURLM *multi,
struct curl_slist *headers)
{
struct Curl_easy *doh = NULL;
char *nurl = NULL;
CURLcode result = CURLE_OK;
timediff_t timeout_ms;
DOHcode d = doh_encode(host, dnstype, p->dohbuffer, sizeof(p->dohbuffer),
&p->dohlen);
if(d) {
failf(data, "Failed to encode DOH packet [%d]\n", d);
return CURLE_OUT_OF_MEMORY;
}
p->dnstype = dnstype;
p->serverdoh.memory = NULL;
/* the memory will be grown as needed by realloc in the doh_write_cb
function */
p->serverdoh.size = 0;
/* Note: this is code for sending the DoH request with GET but there's still
no logic that actually enables this. We should either add that ability or
yank out the GET code. Discuss! */
if(data->set.doh_get) {
char *b64;
size_t b64len;
result = Curl_base64url_encode(data, (char *)p->dohbuffer, p->dohlen,
&b64, &b64len);
if(result)
goto error;
nurl = aprintf("%s?dns=%s", url, b64);
free(b64);
if(!nurl) {
result = CURLE_OUT_OF_MEMORY;
goto error;
}
url = nurl;
}
timeout_ms = Curl_timeleft(data, NULL, TRUE);
/* Curl_open() is the internal version of curl_easy_init() */
result = Curl_open(&doh);
if(!result) {
/* pass in the struct pointer via a local variable to please coverity and
the gcc typecheck helpers */
struct dohresponse *resp = &p->serverdoh;
ERROR_CHECK_SETOPT(CURLOPT_URL, url);
ERROR_CHECK_SETOPT(CURLOPT_WRITEFUNCTION, doh_write_cb);
ERROR_CHECK_SETOPT(CURLOPT_WRITEDATA, resp);
if(!data->set.doh_get) {
ERROR_CHECK_SETOPT(CURLOPT_POSTFIELDS, p->dohbuffer);
ERROR_CHECK_SETOPT(CURLOPT_POSTFIELDSIZE, (long)p->dohlen);
}
ERROR_CHECK_SETOPT(CURLOPT_HTTPHEADER, headers);
#ifdef USE_NGHTTP2
ERROR_CHECK_SETOPT(CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_2TLS);
#endif
#ifndef CURLDEBUG
/* enforce HTTPS if not debug */
ERROR_CHECK_SETOPT(CURLOPT_PROTOCOLS, CURLPROTO_HTTPS);
#endif
ERROR_CHECK_SETOPT(CURLOPT_TIMEOUT_MS, (long)timeout_ms);
if(data->set.verbose)
ERROR_CHECK_SETOPT(CURLOPT_VERBOSE, 1L);
if(data->set.no_signal)
ERROR_CHECK_SETOPT(CURLOPT_NOSIGNAL, 1L);
/* Inherit *some* SSL options from the user's transfer. This is a
best-guess as to which options are needed for compatibility. #3661 */
if(data->set.ssl.falsestart)
ERROR_CHECK_SETOPT(CURLOPT_SSL_FALSESTART, 1L);
if(data->set.ssl.primary.verifyhost)
ERROR_CHECK_SETOPT(CURLOPT_SSL_VERIFYHOST, 2L);
if(data->set.proxy_ssl.primary.verifyhost)
ERROR_CHECK_SETOPT(CURLOPT_PROXY_SSL_VERIFYHOST, 2L);
if(data->set.ssl.primary.verifypeer)
ERROR_CHECK_SETOPT(CURLOPT_SSL_VERIFYPEER, 1L);
if(data->set.proxy_ssl.primary.verifypeer)
ERROR_CHECK_SETOPT(CURLOPT_PROXY_SSL_VERIFYPEER, 1L);
if(data->set.ssl.primary.verifystatus)
ERROR_CHECK_SETOPT(CURLOPT_SSL_VERIFYSTATUS, 1L);
if(data->set.str[STRING_SSL_CAFILE_ORIG]) {
ERROR_CHECK_SETOPT(CURLOPT_CAINFO,
data->set.str[STRING_SSL_CAFILE_ORIG]);
}
if(data->set.str[STRING_SSL_CAFILE_PROXY]) {
ERROR_CHECK_SETOPT(CURLOPT_PROXY_CAINFO,
data->set.str[STRING_SSL_CAFILE_PROXY]);
}
if(data->set.str[STRING_SSL_CAPATH_ORIG]) {
ERROR_CHECK_SETOPT(CURLOPT_CAPATH,
data->set.str[STRING_SSL_CAPATH_ORIG]);
}
if(data->set.str[STRING_SSL_CAPATH_PROXY]) {
ERROR_CHECK_SETOPT(CURLOPT_PROXY_CAPATH,
data->set.str[STRING_SSL_CAPATH_PROXY]);
}
if(data->set.str[STRING_SSL_CRLFILE_ORIG]) {
ERROR_CHECK_SETOPT(CURLOPT_CRLFILE,
data->set.str[STRING_SSL_CRLFILE_ORIG]);
}
if(data->set.str[STRING_SSL_CRLFILE_PROXY]) {
ERROR_CHECK_SETOPT(CURLOPT_PROXY_CRLFILE,
data->set.str[STRING_SSL_CRLFILE_PROXY]);
}
if(data->set.ssl.certinfo)
ERROR_CHECK_SETOPT(CURLOPT_CERTINFO, 1L);
if(data->set.str[STRING_SSL_RANDOM_FILE]) {
ERROR_CHECK_SETOPT(CURLOPT_RANDOM_FILE,
data->set.str[STRING_SSL_RANDOM_FILE]);
}
if(data->set.str[STRING_SSL_EGDSOCKET]) {
ERROR_CHECK_SETOPT(CURLOPT_EGDSOCKET,
data->set.str[STRING_SSL_EGDSOCKET]);
}
if(data->set.ssl.no_revoke)
ERROR_CHECK_SETOPT(CURLOPT_SSL_OPTIONS, CURLSSLOPT_NO_REVOKE);
if(data->set.proxy_ssl.no_revoke)
ERROR_CHECK_SETOPT(CURLOPT_PROXY_SSL_OPTIONS, CURLSSLOPT_NO_REVOKE);
if(data->set.ssl.fsslctx)
ERROR_CHECK_SETOPT(CURLOPT_SSL_CTX_FUNCTION, data->set.ssl.fsslctx);
if(data->set.ssl.fsslctxp)
ERROR_CHECK_SETOPT(CURLOPT_SSL_CTX_DATA, data->set.ssl.fsslctxp);
doh->set.fmultidone = Curl_doh_done;
doh->set.dohfor = data; /* identify for which transfer this is done */
p->easy = doh;
/* add this transfer to the multi handle */
if(curl_multi_add_handle(multi, doh))
goto error;
}
else
goto error;
free(nurl);
return CURLE_OK;
error:
free(nurl);
Curl_close(doh);
return result;
}
/*
* Curl_doh() resolves a name using DOH. It resolves a name and returns a
* 'Curl_addrinfo *' with the address information.
*/
Curl_addrinfo *Curl_doh(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
struct Curl_easy *data = conn->data;
CURLcode result = CURLE_OK;
*waitp = TRUE; /* this never returns synchronously */
(void)conn;
(void)hostname;
(void)port;
/* start clean, consider allocating this struct on demand */
memset(&data->req.doh, 0, sizeof(struct dohdata));
data->req.doh.host = hostname;
data->req.doh.port = port;
data->req.doh.headers =
curl_slist_append(NULL,
"Content-Type: application/dns-message");
if(!data->req.doh.headers)
goto error;
if(conn->ip_version != CURL_IPRESOLVE_V6) {
/* create IPv4 DOH request */
result = dohprobe(data, &data->req.doh.probe[0], DNS_TYPE_A,
hostname, data->set.str[STRING_DOH],
data->multi, data->req.doh.headers);
if(result)
goto error;
data->req.doh.pending++;
}
if(conn->ip_version != CURL_IPRESOLVE_V4) {
/* create IPv6 DOH request */
result = dohprobe(data, &data->req.doh.probe[1], DNS_TYPE_AAAA,
hostname, data->set.str[STRING_DOH],
data->multi, data->req.doh.headers);
if(result)
goto error;
data->req.doh.pending++;
}
return NULL;
error:
curl_slist_free_all(data->req.doh.headers);
data->req.doh.headers = NULL;
curl_easy_cleanup(data->req.doh.probe[0].easy);
data->req.doh.probe[0].easy = NULL;
curl_easy_cleanup(data->req.doh.probe[1].easy);
data->req.doh.probe[1].easy = NULL;
return NULL;
}
static DOHcode skipqname(unsigned char *doh, size_t dohlen,
unsigned int *indexp)
{
unsigned char length;
do {
if(dohlen < (*indexp + 1))
return DOH_DNS_OUT_OF_RANGE;
length = doh[*indexp];
if((length & 0xc0) == 0xc0) {
/* name pointer, advance over it and be done */
if(dohlen < (*indexp + 2))
return DOH_DNS_OUT_OF_RANGE;
*indexp += 2;
break;
}
if(length & 0xc0)
return DOH_DNS_BAD_LABEL;
if(dohlen < (*indexp + 1 + length))
return DOH_DNS_OUT_OF_RANGE;
*indexp += 1 + length;
} while(length);
return DOH_OK;
}
static unsigned short get16bit(unsigned char *doh, int index)
{
return (unsigned short)((doh[index] << 8) | doh[index + 1]);
}
static unsigned int get32bit(unsigned char *doh, int index)
{
return (doh[index] << 24) | (doh[index + 1] << 16) |
(doh[index + 2] << 8) | doh[index + 3];
}
static DOHcode store_a(unsigned char *doh, int index, struct dohentry *d)
{
/* silently ignore addresses over the limit */
if(d->numaddr < DOH_MAX_ADDR) {
struct dohaddr *a = &d->addr[d->numaddr];
a->type = DNS_TYPE_A;
memcpy(&a->ip.v4, &doh[index], 4);
d->numaddr++;
}
return DOH_OK;
}
static DOHcode store_aaaa(unsigned char *doh, int index, struct dohentry *d)
{
/* silently ignore addresses over the limit */
if(d->numaddr < DOH_MAX_ADDR) {
struct dohaddr *a = &d->addr[d->numaddr];
a->type = DNS_TYPE_AAAA;
memcpy(&a->ip.v6, &doh[index], 16);
d->numaddr++;
}
return DOH_OK;
}
static DOHcode cnameappend(struct cnamestore *c,
unsigned char *src,
size_t len)
{
if(!c->alloc) {
c->allocsize = len + 1;
c->alloc = malloc(c->allocsize);
if(!c->alloc)
return DOH_OUT_OF_MEM;
}
else if(c->allocsize < (c->allocsize + len + 1)) {
char *ptr;
c->allocsize += len + 1;
ptr = realloc(c->alloc, c->allocsize);
if(!ptr) {
free(c->alloc);
return DOH_OUT_OF_MEM;
}
c->alloc = ptr;
}
memcpy(&c->alloc[c->len], src, len);
c->len += len;
c->alloc[c->len] = 0; /* keep it zero terminated */
return DOH_OK;
}
static DOHcode store_cname(unsigned char *doh,
size_t dohlen,
unsigned int index,
struct dohentry *d)
{
struct cnamestore *c;
unsigned int loop = 128; /* a valid DNS name can never loop this much */
unsigned char length;
if(d->numcname == DOH_MAX_CNAME)
return DOH_OK; /* skip! */
c = &d->cname[d->numcname++];
do {
if(index >= dohlen)
return DOH_DNS_OUT_OF_RANGE;
length = doh[index];
if((length & 0xc0) == 0xc0) {
int newpos;
/* name pointer, get the new offset (14 bits) */
if((index + 1) >= dohlen)
return DOH_DNS_OUT_OF_RANGE;
/* move to the the new index */
newpos = (length & 0x3f) << 8 | doh[index + 1];
index = newpos;
continue;
}
else if(length & 0xc0)
return DOH_DNS_BAD_LABEL; /* bad input */
else
index++;
if(length) {
DOHcode rc;
if(c->len) {
rc = cnameappend(c, (unsigned char *)".", 1);
if(rc)
return rc;
}
if((index + length) > dohlen)
return DOH_DNS_BAD_LABEL;
rc = cnameappend(c, &doh[index], length);
if(rc)
return rc;
index += length;
}
} while(length && --loop);
if(!loop)
return DOH_DNS_LABEL_LOOP;
return DOH_OK;
}
static DOHcode rdata(unsigned char *doh,
size_t dohlen,
unsigned short rdlength,
unsigned short type,
int index,
struct dohentry *d)
{
/* RDATA
- A (TYPE 1): 4 bytes
- AAAA (TYPE 28): 16 bytes
- NS (TYPE 2): N bytes */
DOHcode rc;
switch(type) {
case DNS_TYPE_A:
if(rdlength != 4)
return DOH_DNS_RDATA_LEN;
rc = store_a(doh, index, d);
if(rc)
return rc;
break;
case DNS_TYPE_AAAA:
if(rdlength != 16)
return DOH_DNS_RDATA_LEN;
rc = store_aaaa(doh, index, d);
if(rc)
return rc;
break;
case DNS_TYPE_CNAME:
rc = store_cname(doh, dohlen, index, d);
if(rc)
return rc;
break;
default:
/* unsupported type, just skip it */
break;
}
return DOH_OK;
}
static void init_dohentry(struct dohentry *de)
{
memset(de, 0, sizeof(*de));
de->ttl = INT_MAX;
}
UNITTEST DOHcode doh_decode(unsigned char *doh,
size_t dohlen,
DNStype dnstype,
struct dohentry *d)
{
unsigned char rcode;
unsigned short qdcount;
unsigned short ancount;
unsigned short type = 0;
unsigned short rdlength;
unsigned short nscount;
unsigned short arcount;
unsigned int index = 12;
DOHcode rc;
if(dohlen < 12)
return DOH_TOO_SMALL_BUFFER; /* too small */
if(!doh || doh[0] || doh[1])
return DOH_DNS_BAD_ID; /* bad ID */
rcode = doh[3] & 0x0f;
if(rcode)
return DOH_DNS_BAD_RCODE; /* bad rcode */
qdcount = get16bit(doh, 4);
while(qdcount) {
rc = skipqname(doh, dohlen, &index);
if(rc)
return rc; /* bad qname */
if(dohlen < (index + 4))
return DOH_DNS_OUT_OF_RANGE;
index += 4; /* skip question's type and class */
qdcount--;
}
ancount = get16bit(doh, 6);
while(ancount) {
unsigned short class;
unsigned int ttl;
rc = skipqname(doh, dohlen, &index);
if(rc)
return rc; /* bad qname */
if(dohlen < (index + 2))
return DOH_DNS_OUT_OF_RANGE;
type = get16bit(doh, index);
if((type != DNS_TYPE_CNAME) && (type != dnstype))
/* Not the same type as was asked for nor CNAME */
return DOH_DNS_UNEXPECTED_TYPE;
index += 2;
if(dohlen < (index + 2))
return DOH_DNS_OUT_OF_RANGE;
class = get16bit(doh, index);
if(DNS_CLASS_IN != class)
return DOH_DNS_UNEXPECTED_CLASS; /* unsupported */
index += 2;
if(dohlen < (index + 4))
return DOH_DNS_OUT_OF_RANGE;
ttl = get32bit(doh, index);
if(ttl < d->ttl)
d->ttl = ttl;
index += 4;
if(dohlen < (index + 2))
return DOH_DNS_OUT_OF_RANGE;
rdlength = get16bit(doh, index);
index += 2;
if(dohlen < (index + rdlength))
return DOH_DNS_OUT_OF_RANGE;
rc = rdata(doh, dohlen, rdlength, type, index, d);
if(rc)
return rc; /* bad rdata */
index += rdlength;
ancount--;
}
nscount = get16bit(doh, 8);
while(nscount) {
rc = skipqname(doh, dohlen, &index);
if(rc)
return rc; /* bad qname */
if(dohlen < (index + 8))
return DOH_DNS_OUT_OF_RANGE;
index += 2 + 2 + 4; /* type, class and ttl */
if(dohlen < (index + 2))
return DOH_DNS_OUT_OF_RANGE;
rdlength = get16bit(doh, index);
index += 2;
if(dohlen < (index + rdlength))
return DOH_DNS_OUT_OF_RANGE;
index += rdlength;
nscount--;
}
arcount = get16bit(doh, 10);
while(arcount) {
rc = skipqname(doh, dohlen, &index);
if(rc)
return rc; /* bad qname */
if(dohlen < (index + 8))
return DOH_DNS_OUT_OF_RANGE;
index += 2 + 2 + 4; /* type, class and ttl */
if(dohlen < (index + 2))
return DOH_DNS_OUT_OF_RANGE;
rdlength = get16bit(doh, index);
index += 2;
if(dohlen < (index + rdlength))
return DOH_DNS_OUT_OF_RANGE;
index += rdlength;
arcount--;
}
if(index != dohlen)
return DOH_DNS_MALFORMAT; /* something is wrong */
if((type != DNS_TYPE_NS) && !d->numcname && !d->numaddr)
/* nothing stored! */
return DOH_NO_CONTENT;
return DOH_OK; /* ok */
}
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static void showdoh(struct Curl_easy *data,
struct dohentry *d)
{
int i;
infof(data, "TTL: %u seconds\n", d->ttl);
for(i = 0; i < d->numaddr; i++) {
struct dohaddr *a = &d->addr[i];
if(a->type == DNS_TYPE_A) {
infof(data, "DOH A: %u.%u.%u.%u\n",
a->ip.v4[0], a->ip.v4[1],
a->ip.v4[2], a->ip.v4[3]);
}
else if(a->type == DNS_TYPE_AAAA) {
int j;
char buffer[128];
char *ptr;
size_t len;
msnprintf(buffer, 128, "DOH AAAA: ");
ptr = &buffer[10];
len = 118;
for(j = 0; j < 16; j += 2) {
size_t l;
msnprintf(ptr, len, "%s%02x%02x", j?":":"", d->addr[i].ip.v6[j],
d->addr[i].ip.v6[j + 1]);
l = strlen(ptr);
len -= l;
ptr += l;
}
infof(data, "%s\n", buffer);
}
}
for(i = 0; i < d->numcname; i++) {
infof(data, "CNAME: %s\n", d->cname[i].alloc);
}
}
#else
#define showdoh(x,y)
#endif
/*
* doh2ai()
*
* This function returns a pointer to the first element of a newly allocated
* Curl_addrinfo struct linked list filled with the data from a set of DOH
* lookups. Curl_addrinfo is meant to work like the addrinfo struct does for
* a IPv6 stack, but usable also for IPv4, all hosts and environments.
*
* The memory allocated by this function *MUST* be free'd later on calling
* Curl_freeaddrinfo(). For each successful call to this function there
* must be an associated call later to Curl_freeaddrinfo().
*/
static Curl_addrinfo *
doh2ai(const struct dohentry *de, const char *hostname, int port)
{
Curl_addrinfo *ai;
Curl_addrinfo *prevai = NULL;
Curl_addrinfo *firstai = NULL;
struct sockaddr_in *addr;
#ifdef ENABLE_IPV6
struct sockaddr_in6 *addr6;
#endif
CURLcode result = CURLE_OK;
int i;
if(!de)
/* no input == no output! */
return NULL;
for(i = 0; i < de->numaddr; i++) {
size_t ss_size;
CURL_SA_FAMILY_T addrtype;
if(de->addr[i].type == DNS_TYPE_AAAA) {
#ifndef ENABLE_IPV6
/* we can't handle IPv6 addresses */
continue;
#else
ss_size = sizeof(struct sockaddr_in6);
addrtype = AF_INET6;
#endif
}
else {
ss_size = sizeof(struct sockaddr_in);
addrtype = AF_INET;
}
ai = calloc(1, sizeof(Curl_addrinfo));
if(!ai) {
result = CURLE_OUT_OF_MEMORY;
break;
}
ai->ai_canonname = strdup(hostname);
if(!ai->ai_canonname) {
result = CURLE_OUT_OF_MEMORY;
free(ai);
break;
}
ai->ai_addr = calloc(1, ss_size);
if(!ai->ai_addr) {
result = CURLE_OUT_OF_MEMORY;
free(ai->ai_canonname);
free(ai);
break;
}
if(!firstai)
/* store the pointer we want to return from this function */
firstai = ai;
if(prevai)
/* make the previous entry point to this */
prevai->ai_next = ai;
ai->ai_family = addrtype;
/* we return all names as STREAM, so when using this address for TFTP
the type must be ignored and conn->socktype be used instead! */
ai->ai_socktype = SOCK_STREAM;
ai->ai_addrlen = (curl_socklen_t)ss_size;
/* leave the rest of the struct filled with zero */
switch(ai->ai_family) {
case AF_INET:
addr = (void *)ai->ai_addr; /* storage area for this info */
DEBUGASSERT(sizeof(struct in_addr) == sizeof(de->addr[i].ip.v4));
memcpy(&addr->sin_addr, &de->addr[i].ip.v4, sizeof(struct in_addr));
addr->sin_family = (CURL_SA_FAMILY_T)addrtype;
addr->sin_port = htons((unsigned short)port);
break;
#ifdef ENABLE_IPV6
case AF_INET6:
addr6 = (void *)ai->ai_addr; /* storage area for this info */
DEBUGASSERT(sizeof(struct in6_addr) == sizeof(de->addr[i].ip.v6));
memcpy(&addr6->sin6_addr, &de->addr[i].ip.v6, sizeof(struct in6_addr));
addr6->sin6_family = (CURL_SA_FAMILY_T)addrtype;
addr6->sin6_port = htons((unsigned short)port);
break;
#endif
}
prevai = ai;
}
if(result) {
Curl_freeaddrinfo(firstai);
firstai = NULL;
}
return firstai;
}
#ifndef CURL_DISABLE_VERBOSE_STRINGS
static const char *type2name(DNStype dnstype)
{
return (dnstype == DNS_TYPE_A)?"A":"AAAA";
}
#endif
UNITTEST void de_cleanup(struct dohentry *d)
{
int i = 0;
for(i = 0; i < d->numcname; i++) {
free(d->cname[i].alloc);
}
}
CURLcode Curl_doh_is_resolved(struct connectdata *conn,
struct Curl_dns_entry **dnsp)
{
struct Curl_easy *data = conn->data;
*dnsp = NULL; /* defaults to no response */
if(!data->req.doh.probe[0].easy && !data->req.doh.probe[1].easy) {
failf(data, "Could not DOH-resolve: %s", conn->async.hostname);
return conn->bits.proxy?CURLE_COULDNT_RESOLVE_PROXY:
CURLE_COULDNT_RESOLVE_HOST;
}
else if(!data->req.doh.pending) {
DOHcode rc;
DOHcode rc2;
struct dohentry de;
/* remove DOH handles from multi handle and close them */
curl_multi_remove_handle(data->multi, data->req.doh.probe[0].easy);
Curl_close(data->req.doh.probe[0].easy);
curl_multi_remove_handle(data->multi, data->req.doh.probe[1].easy);
Curl_close(data->req.doh.probe[1].easy);
/* parse the responses, create the struct and return it! */
init_dohentry(&de);
rc = doh_decode(data->req.doh.probe[0].serverdoh.memory,
data->req.doh.probe[0].serverdoh.size,
data->req.doh.probe[0].dnstype,
&de);
free(data->req.doh.probe[0].serverdoh.memory);
if(rc) {
infof(data, "DOH: %s type %s for %s\n", doh_strerror(rc),
type2name(data->req.doh.probe[0].dnstype),
data->req.doh.host);
}
rc2 = doh_decode(data->req.doh.probe[1].serverdoh.memory,
data->req.doh.probe[1].serverdoh.size,
data->req.doh.probe[1].dnstype,
&de);
free(data->req.doh.probe[1].serverdoh.memory);
if(rc2) {
infof(data, "DOH: %s type %s for %s\n", doh_strerror(rc2),
type2name(data->req.doh.probe[1].dnstype),
data->req.doh.host);
}
if(!rc || !rc2) {
struct Curl_dns_entry *dns;
struct Curl_addrinfo *ai;
infof(data, "DOH Host name: %s\n", data->req.doh.host);
showdoh(data, &de);
ai = doh2ai(&de, data->req.doh.host, data->req.doh.port);
if(!ai) {
de_cleanup(&de);
return CURLE_OUT_OF_MEMORY;
}
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
/* we got a response, store it in the cache */
dns = Curl_cache_addr(data, ai, data->req.doh.host, data->req.doh.port);
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
de_cleanup(&de);
if(!dns)
/* returned failure, bail out nicely */
Curl_freeaddrinfo(ai);
else {
conn->async.dns = dns;
*dnsp = dns;
return CURLE_OK;
}
}
de_cleanup(&de);
return CURLE_COULDNT_RESOLVE_HOST;
}
return CURLE_OK;
}
#endif /* CURL_DISABLE_DOH */

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#ifndef HEADER_CURL_DOH_H
#define HEADER_CURL_DOH_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2018 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "urldata.h"
#include "curl_addrinfo.h"
#ifndef CURL_DISABLE_DOH
/*
* Curl_doh() resolve a name using DoH (DNS-over-HTTPS). It resolves a name
* and returns a 'Curl_addrinfo *' with the address information.
*/
Curl_addrinfo *Curl_doh(struct connectdata *conn,
const char *hostname,
int port,
int *waitp);
CURLcode Curl_doh_is_resolved(struct connectdata *conn,
struct Curl_dns_entry **dns);
int Curl_doh_getsock(struct connectdata *conn, curl_socket_t *socks,
int numsocks);
typedef enum {
DOH_OK,
DOH_DNS_BAD_LABEL, /* 1 */
DOH_DNS_OUT_OF_RANGE, /* 2 */
DOH_DNS_LABEL_LOOP, /* 3 */
DOH_TOO_SMALL_BUFFER, /* 4 */
DOH_OUT_OF_MEM, /* 5 */
DOH_DNS_RDATA_LEN, /* 6 */
DOH_DNS_MALFORMAT, /* 7 */
DOH_DNS_BAD_RCODE, /* 8 - no such name */
DOH_DNS_UNEXPECTED_TYPE, /* 9 */
DOH_DNS_UNEXPECTED_CLASS, /* 10 */
DOH_NO_CONTENT, /* 11 */
DOH_DNS_BAD_ID /* 12 */
} DOHcode;
typedef enum {
DNS_TYPE_A = 1,
DNS_TYPE_NS = 2,
DNS_TYPE_CNAME = 5,
DNS_TYPE_AAAA = 28
} DNStype;
#define DOH_MAX_ADDR 24
#define DOH_MAX_CNAME 4
struct cnamestore {
size_t len; /* length of cname */
char *alloc; /* allocated pointer */
size_t allocsize; /* allocated size */
};
struct dohaddr {
int type;
union {
unsigned char v4[4]; /* network byte order */
unsigned char v6[16];
} ip;
};
struct dohentry {
unsigned int ttl;
int numaddr;
struct dohaddr addr[DOH_MAX_ADDR];
int numcname;
struct cnamestore cname[DOH_MAX_CNAME];
};
#ifdef DEBUGBUILD
DOHcode doh_encode(const char *host,
DNStype dnstype,
unsigned char *dnsp, /* buffer */
size_t len, /* buffer size */
size_t *olen); /* output length */
DOHcode doh_decode(unsigned char *doh,
size_t dohlen,
DNStype dnstype,
struct dohentry *d);
void de_cleanup(struct dohentry *d);
#endif
#else /* if DOH is disabled */
#define Curl_doh(a,b,c,d) NULL
#define Curl_doh_is_resolved(x,y) CURLE_COULDNT_RESOLVE_HOST
#endif
#endif /* HEADER_CURL_DOH_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "dotdot.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* "Remove Dot Segments"
* https://tools.ietf.org/html/rfc3986#section-5.2.4
*/
/*
* Curl_dedotdotify()
* @unittest: 1395
*
* This function gets a zero-terminated path with dot and dotdot sequences
* passed in and strips them off according to the rules in RFC 3986 section
* 5.2.4.
*
* The function handles a query part ('?' + stuff) appended but it expects
* that fragments ('#' + stuff) have already been cut off.
*
* RETURNS
*
* an allocated dedotdotified output string
*/
char *Curl_dedotdotify(const char *input)
{
size_t inlen = strlen(input);
char *clone;
size_t clen = inlen; /* the length of the cloned input */
char *out = malloc(inlen + 1);
char *outptr;
char *orgclone;
char *queryp;
if(!out)
return NULL; /* out of memory */
*out = 0; /* zero terminates, for inputs like "./" */
/* get a cloned copy of the input */
clone = strdup(input);
if(!clone) {
free(out);
return NULL;
}
orgclone = clone;
outptr = out;
if(!*clone) {
/* zero length string, return that */
free(out);
return clone;
}
/*
* To handle query-parts properly, we must find it and remove it during the
* dotdot-operation and then append it again at the end to the output
* string.
*/
queryp = strchr(clone, '?');
if(queryp)
*queryp = 0;
do {
/* A. If the input buffer begins with a prefix of "../" or "./", then
remove that prefix from the input buffer; otherwise, */
if(!strncmp("./", clone, 2)) {
clone += 2;
clen -= 2;
}
else if(!strncmp("../", clone, 3)) {
clone += 3;
clen -= 3;
}
/* B. if the input buffer begins with a prefix of "/./" or "/.", where
"." is a complete path segment, then replace that prefix with "/" in
the input buffer; otherwise, */
else if(!strncmp("/./", clone, 3)) {
clone += 2;
clen -= 2;
}
else if(!strcmp("/.", clone)) {
clone[1]='/';
clone++;
clen -= 1;
}
/* C. if the input buffer begins with a prefix of "/../" or "/..", where
".." is a complete path segment, then replace that prefix with "/" in
the input buffer and remove the last segment and its preceding "/" (if
any) from the output buffer; otherwise, */
else if(!strncmp("/../", clone, 4)) {
clone += 3;
clen -= 3;
/* remove the last segment from the output buffer */
while(outptr > out) {
outptr--;
if(*outptr == '/')
break;
}
*outptr = 0; /* zero-terminate where it stops */
}
else if(!strcmp("/..", clone)) {
clone[2]='/';
clone += 2;
clen -= 2;
/* remove the last segment from the output buffer */
while(outptr > out) {
outptr--;
if(*outptr == '/')
break;
}
*outptr = 0; /* zero-terminate where it stops */
}
/* D. if the input buffer consists only of "." or "..", then remove
that from the input buffer; otherwise, */
else if(!strcmp(".", clone) || !strcmp("..", clone)) {
*clone = 0;
*out = 0;
}
else {
/* E. move the first path segment in the input buffer to the end of
the output buffer, including the initial "/" character (if any) and
any subsequent characters up to, but not including, the next "/"
character or the end of the input buffer. */
do {
*outptr++ = *clone++;
clen--;
} while(*clone && (*clone != '/'));
*outptr = 0;
}
} while(*clone);
if(queryp) {
size_t qlen;
/* There was a query part, append that to the output. The 'clone' string
may now have been altered so we copy from the original input string
from the correct index. */
size_t oindex = queryp - orgclone;
qlen = strlen(&input[oindex]);
memcpy(outptr, &input[oindex], qlen + 1); /* include the end zero byte */
}
free(orgclone);
return out;
}

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#ifndef HEADER_CURL_DOTDOT_H
#define HEADER_CURL_DOTDOT_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
char *Curl_dedotdotify(const char *input);
#endif /* HEADER_CURL_DOTDOT_H */

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#ifndef HEADER_CURL_EASYIF_H
#define HEADER_CURL_EASYIF_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/*
* Prototypes for library-wide functions provided by easy.c
*/
#ifdef CURLDEBUG
CURL_EXTERN CURLcode curl_easy_perform_ev(struct Curl_easy *easy);
#endif
#endif /* HEADER_CURL_EASYIF_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* Escape and unescape URL encoding in strings. The functions return a new
* allocated string or NULL if an error occurred. */
#include "curl_setup.h"
#include <curl/curl.h>
#include "urldata.h"
#include "warnless.h"
#include "non-ascii.h"
#include "escape.h"
#include "strdup.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
/* Portable character check (remember EBCDIC). Do not use isalnum() because
its behavior is altered by the current locale.
See https://tools.ietf.org/html/rfc3986#section-2.3
*/
bool Curl_isunreserved(unsigned char in)
{
switch(in) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
case 'a': case 'b': case 'c': case 'd': case 'e':
case 'f': case 'g': case 'h': case 'i': case 'j':
case 'k': case 'l': case 'm': case 'n': case 'o':
case 'p': case 'q': case 'r': case 's': case 't':
case 'u': case 'v': case 'w': case 'x': case 'y': case 'z':
case 'A': case 'B': case 'C': case 'D': case 'E':
case 'F': case 'G': case 'H': case 'I': case 'J':
case 'K': case 'L': case 'M': case 'N': case 'O':
case 'P': case 'Q': case 'R': case 'S': case 'T':
case 'U': case 'V': case 'W': case 'X': case 'Y': case 'Z':
case '-': case '.': case '_': case '~':
return TRUE;
default:
break;
}
return FALSE;
}
/* for ABI-compatibility with previous versions */
char *curl_escape(const char *string, int inlength)
{
return curl_easy_escape(NULL, string, inlength);
}
/* for ABI-compatibility with previous versions */
char *curl_unescape(const char *string, int length)
{
return curl_easy_unescape(NULL, string, length, NULL);
}
char *curl_easy_escape(struct Curl_easy *data, const char *string,
int inlength)
{
size_t alloc;
char *ns;
char *testing_ptr = NULL;
size_t newlen;
size_t strindex = 0;
size_t length;
CURLcode result;
if(inlength < 0)
return NULL;
alloc = (inlength?(size_t)inlength:strlen(string)) + 1;
newlen = alloc;
ns = malloc(alloc);
if(!ns)
return NULL;
length = alloc-1;
while(length--) {
unsigned char in = *string; /* we need to treat the characters unsigned */
if(Curl_isunreserved(in))
/* just copy this */
ns[strindex++] = in;
else {
/* encode it */
newlen += 2; /* the size grows with two, since this'll become a %XX */
if(newlen > alloc) {
alloc *= 2;
testing_ptr = Curl_saferealloc(ns, alloc);
if(!testing_ptr)
return NULL;
ns = testing_ptr;
}
result = Curl_convert_to_network(data, (char *)&in, 1);
if(result) {
/* Curl_convert_to_network calls failf if unsuccessful */
free(ns);
return NULL;
}
msnprintf(&ns[strindex], 4, "%%%02X", in);
strindex += 3;
}
string++;
}
ns[strindex] = 0; /* terminate it */
return ns;
}
/*
* Curl_urldecode() URL decodes the given string.
*
* Optionally detects control characters (byte codes lower than 32) in the
* data and rejects such data.
*
* Returns a pointer to a malloced string in *ostring with length given in
* *olen. If length == 0, the length is assumed to be strlen(string).
*
* 'data' can be set to NULL but then this function can't convert network
* data to host for non-ascii.
*/
CURLcode Curl_urldecode(struct Curl_easy *data,
const char *string, size_t length,
char **ostring, size_t *olen,
bool reject_ctrl)
{
size_t alloc = (length?length:strlen(string)) + 1;
char *ns = malloc(alloc);
size_t strindex = 0;
unsigned long hex;
CURLcode result = CURLE_OK;
if(!ns)
return CURLE_OUT_OF_MEMORY;
while(--alloc > 0) {
unsigned char in = *string;
if(('%' == in) && (alloc > 2) &&
ISXDIGIT(string[1]) && ISXDIGIT(string[2])) {
/* this is two hexadecimal digits following a '%' */
char hexstr[3];
char *ptr;
hexstr[0] = string[1];
hexstr[1] = string[2];
hexstr[2] = 0;
hex = strtoul(hexstr, &ptr, 16);
in = curlx_ultouc(hex); /* this long is never bigger than 255 anyway */
if(data) {
result = Curl_convert_from_network(data, (char *)&in, 1);
if(result) {
/* Curl_convert_from_network calls failf if unsuccessful */
free(ns);
return result;
}
}
string += 2;
alloc -= 2;
}
if(reject_ctrl && (in < 0x20)) {
free(ns);
return CURLE_URL_MALFORMAT;
}
ns[strindex++] = in;
string++;
}
ns[strindex] = 0; /* terminate it */
if(olen)
/* store output size */
*olen = strindex;
/* store output string */
*ostring = ns;
return CURLE_OK;
}
/*
* Unescapes the given URL escaped string of given length. Returns a
* pointer to a malloced string with length given in *olen.
* If length == 0, the length is assumed to be strlen(string).
* If olen == NULL, no output length is stored.
*/
char *curl_easy_unescape(struct Curl_easy *data, const char *string,
int length, int *olen)
{
char *str = NULL;
if(length >= 0) {
size_t inputlen = length;
size_t outputlen;
CURLcode res = Curl_urldecode(data, string, inputlen, &str, &outputlen,
FALSE);
if(res)
return NULL;
if(olen) {
if(outputlen <= (size_t) INT_MAX)
*olen = curlx_uztosi(outputlen);
else
/* too large to return in an int, fail! */
Curl_safefree(str);
}
}
return str;
}
/* For operating systems/environments that use different malloc/free
systems for the app and for this library, we provide a free that uses
the library's memory system */
void curl_free(void *p)
{
free(p);
}

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#ifndef HEADER_CURL_ESCAPE_H
#define HEADER_CURL_ESCAPE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/* Escape and unescape URL encoding in strings. The functions return a new
* allocated string or NULL if an error occurred. */
bool Curl_isunreserved(unsigned char in);
CURLcode Curl_urldecode(struct Curl_easy *data,
const char *string, size_t length,
char **ostring, size_t *olen,
bool reject_crlf);
#endif /* HEADER_CURL_ESCAPE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FILE
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#ifdef HAVE_SYS_IOCTL_H
#include <sys/ioctl.h>
#endif
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include "strtoofft.h"
#include "urldata.h"
#include <curl/curl.h>
#include "progress.h"
#include "sendf.h"
#include "escape.h"
#include "file.h"
#include "speedcheck.h"
#include "getinfo.h"
#include "transfer.h"
#include "url.h"
#include "parsedate.h" /* for the week day and month names */
#include "warnless.h"
#include "curl_range.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#if defined(WIN32) || defined(MSDOS) || defined(__EMX__) || \
defined(__SYMBIAN32__)
#define DOS_FILESYSTEM 1
#endif
#ifdef OPEN_NEEDS_ARG3
# define open_readonly(p,f) open((p),(f),(0))
#else
# define open_readonly(p,f) open((p),(f))
#endif
/*
* Forward declarations.
*/
static CURLcode file_do(struct connectdata *, bool *done);
static CURLcode file_done(struct connectdata *conn,
CURLcode status, bool premature);
static CURLcode file_connect(struct connectdata *conn, bool *done);
static CURLcode file_disconnect(struct connectdata *conn,
bool dead_connection);
static CURLcode file_setup_connection(struct connectdata *conn);
/*
* FILE scheme handler.
*/
const struct Curl_handler Curl_handler_file = {
"FILE", /* scheme */
file_setup_connection, /* setup_connection */
file_do, /* do_it */
file_done, /* done */
ZERO_NULL, /* do_more */
file_connect, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
file_disconnect, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
0, /* defport */
CURLPROTO_FILE, /* protocol */
PROTOPT_NONETWORK | PROTOPT_NOURLQUERY /* flags */
};
static CURLcode file_setup_connection(struct connectdata *conn)
{
/* allocate the FILE specific struct */
conn->data->req.protop = calloc(1, sizeof(struct FILEPROTO));
if(!conn->data->req.protop)
return CURLE_OUT_OF_MEMORY;
return CURLE_OK;
}
/*
* file_connect() gets called from Curl_protocol_connect() to allow us to
* do protocol-specific actions at connect-time. We emulate a
* connect-then-transfer protocol and "connect" to the file here
*/
static CURLcode file_connect(struct connectdata *conn, bool *done)
{
struct Curl_easy *data = conn->data;
char *real_path;
struct FILEPROTO *file = data->req.protop;
int fd;
#ifdef DOS_FILESYSTEM
size_t i;
char *actual_path;
#endif
size_t real_path_len;
CURLcode result = Curl_urldecode(data, data->state.up.path, 0, &real_path,
&real_path_len, FALSE);
if(result)
return result;
#ifdef DOS_FILESYSTEM
/* If the first character is a slash, and there's
something that looks like a drive at the beginning of
the path, skip the slash. If we remove the initial
slash in all cases, paths without drive letters end up
relative to the current directory which isn't how
browsers work.
Some browsers accept | instead of : as the drive letter
separator, so we do too.
On other platforms, we need the slash to indicate an
absolute pathname. On Windows, absolute paths start
with a drive letter.
*/
actual_path = real_path;
if((actual_path[0] == '/') &&
actual_path[1] &&
(actual_path[2] == ':' || actual_path[2] == '|')) {
actual_path[2] = ':';
actual_path++;
real_path_len--;
}
/* change path separators from '/' to '\\' for DOS, Windows and OS/2 */
for(i = 0; i < real_path_len; ++i)
if(actual_path[i] == '/')
actual_path[i] = '\\';
else if(!actual_path[i]) { /* binary zero */
Curl_safefree(real_path);
return CURLE_URL_MALFORMAT;
}
fd = open_readonly(actual_path, O_RDONLY|O_BINARY);
file->path = actual_path;
#else
if(memchr(real_path, 0, real_path_len)) {
/* binary zeroes indicate foul play */
Curl_safefree(real_path);
return CURLE_URL_MALFORMAT;
}
fd = open_readonly(real_path, O_RDONLY);
file->path = real_path;
#endif
file->freepath = real_path; /* free this when done */
file->fd = fd;
if(!data->set.upload && (fd == -1)) {
failf(data, "Couldn't open file %s", data->state.up.path);
file_done(conn, CURLE_FILE_COULDNT_READ_FILE, FALSE);
return CURLE_FILE_COULDNT_READ_FILE;
}
*done = TRUE;
return CURLE_OK;
}
static CURLcode file_done(struct connectdata *conn,
CURLcode status, bool premature)
{
struct FILEPROTO *file = conn->data->req.protop;
(void)status; /* not used */
(void)premature; /* not used */
if(file) {
Curl_safefree(file->freepath);
file->path = NULL;
if(file->fd != -1)
close(file->fd);
file->fd = -1;
}
return CURLE_OK;
}
static CURLcode file_disconnect(struct connectdata *conn,
bool dead_connection)
{
struct FILEPROTO *file = conn->data->req.protop;
(void)dead_connection; /* not used */
if(file) {
Curl_safefree(file->freepath);
file->path = NULL;
if(file->fd != -1)
close(file->fd);
file->fd = -1;
}
return CURLE_OK;
}
#ifdef DOS_FILESYSTEM
#define DIRSEP '\\'
#else
#define DIRSEP '/'
#endif
static CURLcode file_upload(struct connectdata *conn)
{
struct FILEPROTO *file = conn->data->req.protop;
const char *dir = strchr(file->path, DIRSEP);
int fd;
int mode;
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
char *buf = data->state.buffer;
curl_off_t bytecount = 0;
struct_stat file_stat;
const char *buf2;
/*
* Since FILE: doesn't do the full init, we need to provide some extra
* assignments here.
*/
conn->data->req.upload_fromhere = buf;
if(!dir)
return CURLE_FILE_COULDNT_READ_FILE; /* fix: better error code */
if(!dir[1])
return CURLE_FILE_COULDNT_READ_FILE; /* fix: better error code */
#ifdef O_BINARY
#define MODE_DEFAULT O_WRONLY|O_CREAT|O_BINARY
#else
#define MODE_DEFAULT O_WRONLY|O_CREAT
#endif
if(data->state.resume_from)
mode = MODE_DEFAULT|O_APPEND;
else
mode = MODE_DEFAULT|O_TRUNC;
fd = open(file->path, mode, conn->data->set.new_file_perms);
if(fd < 0) {
failf(data, "Can't open %s for writing", file->path);
return CURLE_WRITE_ERROR;
}
if(-1 != data->state.infilesize)
/* known size of data to "upload" */
Curl_pgrsSetUploadSize(data, data->state.infilesize);
/* treat the negative resume offset value as the case of "-" */
if(data->state.resume_from < 0) {
if(fstat(fd, &file_stat)) {
close(fd);
failf(data, "Can't get the size of %s", file->path);
return CURLE_WRITE_ERROR;
}
data->state.resume_from = (curl_off_t)file_stat.st_size;
}
while(!result) {
size_t nread;
size_t nwrite;
size_t readcount;
result = Curl_fillreadbuffer(conn, data->set.buffer_size, &readcount);
if(result)
break;
if(!readcount)
break;
nread = readcount;
/*skip bytes before resume point*/
if(data->state.resume_from) {
if((curl_off_t)nread <= data->state.resume_from) {
data->state.resume_from -= nread;
nread = 0;
buf2 = buf;
}
else {
buf2 = buf + data->state.resume_from;
nread -= (size_t)data->state.resume_from;
data->state.resume_from = 0;
}
}
else
buf2 = buf;
/* write the data to the target */
nwrite = write(fd, buf2, nread);
if(nwrite != nread) {
result = CURLE_SEND_ERROR;
break;
}
bytecount += nread;
Curl_pgrsSetUploadCounter(data, bytecount);
if(Curl_pgrsUpdate(conn))
result = CURLE_ABORTED_BY_CALLBACK;
else
result = Curl_speedcheck(data, Curl_now());
}
if(!result && Curl_pgrsUpdate(conn))
result = CURLE_ABORTED_BY_CALLBACK;
close(fd);
return result;
}
/*
* file_do() is the protocol-specific function for the do-phase, separated
* from the connect-phase above. Other protocols merely setup the transfer in
* the do-phase, to have it done in the main transfer loop but since some
* platforms we support don't allow select()ing etc on file handles (as
* opposed to sockets) we instead perform the whole do-operation in this
* function.
*/
static CURLcode file_do(struct connectdata *conn, bool *done)
{
/* This implementation ignores the host name in conformance with
RFC 1738. Only local files (reachable via the standard file system)
are supported. This means that files on remotely mounted directories
(via NFS, Samba, NT sharing) can be accessed through a file:// URL
*/
CURLcode result = CURLE_OK;
struct_stat statbuf; /* struct_stat instead of struct stat just to allow the
Windows version to have a different struct without
having to redefine the simple word 'stat' */
curl_off_t expected_size = 0;
bool size_known;
bool fstated = FALSE;
struct Curl_easy *data = conn->data;
char *buf = data->state.buffer;
curl_off_t bytecount = 0;
int fd;
struct FILEPROTO *file;
*done = TRUE; /* unconditionally */
Curl_pgrsStartNow(data);
if(data->set.upload)
return file_upload(conn);
file = conn->data->req.protop;
/* get the fd from the connection phase */
fd = file->fd;
/* VMS: This only works reliable for STREAMLF files */
if(-1 != fstat(fd, &statbuf)) {
/* we could stat it, then read out the size */
expected_size = statbuf.st_size;
/* and store the modification time */
data->info.filetime = statbuf.st_mtime;
fstated = TRUE;
}
if(fstated && !data->state.range && data->set.timecondition) {
if(!Curl_meets_timecondition(data, data->info.filetime)) {
*done = TRUE;
return CURLE_OK;
}
}
if(fstated) {
time_t filetime;
struct tm buffer;
const struct tm *tm = &buffer;
char header[80];
msnprintf(header, sizeof(header),
"Content-Length: %" CURL_FORMAT_CURL_OFF_T "\r\n",
expected_size);
result = Curl_client_write(conn, CLIENTWRITE_HEADER, header, 0);
if(result)
return result;
result = Curl_client_write(conn, CLIENTWRITE_HEADER,
(char *)"Accept-ranges: bytes\r\n", 0);
if(result)
return result;
filetime = (time_t)statbuf.st_mtime;
result = Curl_gmtime(filetime, &buffer);
if(result)
return result;
/* format: "Tue, 15 Nov 1994 12:45:26 GMT" */
msnprintf(header, sizeof(header),
"Last-Modified: %s, %02d %s %4d %02d:%02d:%02d GMT\r\n%s",
Curl_wkday[tm->tm_wday?tm->tm_wday-1:6],
tm->tm_mday,
Curl_month[tm->tm_mon],
tm->tm_year + 1900,
tm->tm_hour,
tm->tm_min,
tm->tm_sec,
data->set.opt_no_body ? "": "\r\n");
result = Curl_client_write(conn, CLIENTWRITE_HEADER, header, 0);
if(result)
return result;
/* set the file size to make it available post transfer */
Curl_pgrsSetDownloadSize(data, expected_size);
if(data->set.opt_no_body)
return result;
}
/* Check whether file range has been specified */
result = Curl_range(conn);
if(result)
return result;
/* Adjust the start offset in case we want to get the N last bytes
* of the stream if the filesize could be determined */
if(data->state.resume_from < 0) {
if(!fstated) {
failf(data, "Can't get the size of file.");
return CURLE_READ_ERROR;
}
data->state.resume_from += (curl_off_t)statbuf.st_size;
}
if(data->state.resume_from <= expected_size)
expected_size -= data->state.resume_from;
else {
failf(data, "failed to resume file:// transfer");
return CURLE_BAD_DOWNLOAD_RESUME;
}
/* A high water mark has been specified so we obey... */
if(data->req.maxdownload > 0)
expected_size = data->req.maxdownload;
if(!fstated || (expected_size == 0))
size_known = FALSE;
else
size_known = TRUE;
/* The following is a shortcut implementation of file reading
this is both more efficient than the former call to download() and
it avoids problems with select() and recv() on file descriptors
in Winsock */
if(fstated)
Curl_pgrsSetDownloadSize(data, expected_size);
if(data->state.resume_from) {
if(data->state.resume_from !=
lseek(fd, data->state.resume_from, SEEK_SET))
return CURLE_BAD_DOWNLOAD_RESUME;
}
Curl_pgrsTime(data, TIMER_STARTTRANSFER);
while(!result) {
ssize_t nread;
/* Don't fill a whole buffer if we want less than all data */
size_t bytestoread;
if(size_known) {
bytestoread = (expected_size < data->set.buffer_size) ?
curlx_sotouz(expected_size) : (size_t)data->set.buffer_size;
}
else
bytestoread = data->set.buffer_size-1;
nread = read(fd, buf, bytestoread);
if(nread > 0)
buf[nread] = 0;
if(nread <= 0 || (size_known && (expected_size == 0)))
break;
bytecount += nread;
if(size_known)
expected_size -= nread;
result = Curl_client_write(conn, CLIENTWRITE_BODY, buf, nread);
if(result)
return result;
Curl_pgrsSetDownloadCounter(data, bytecount);
if(Curl_pgrsUpdate(conn))
result = CURLE_ABORTED_BY_CALLBACK;
else
result = Curl_speedcheck(data, Curl_now());
}
if(Curl_pgrsUpdate(conn))
result = CURLE_ABORTED_BY_CALLBACK;
return result;
}
#endif

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#ifndef HEADER_CURL_FILE_H
#define HEADER_CURL_FILE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
/****************************************************************************
* FILE unique setup
***************************************************************************/
struct FILEPROTO {
char *path; /* the path we operate on */
char *freepath; /* pointer to the allocated block we must free, this might
differ from the 'path' pointer */
int fd; /* open file descriptor to read from! */
};
#ifndef CURL_DISABLE_FILE
extern const struct Curl_handler Curl_handler_file;
#endif
#endif /* HEADER_CURL_FILE_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2010 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FTP
#include "strdup.h"
#include "fileinfo.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
struct fileinfo *Curl_fileinfo_alloc(void)
{
return calloc(1, sizeof(struct fileinfo));
}
void Curl_fileinfo_cleanup(struct fileinfo *finfo)
{
if(!finfo)
return;
Curl_safefree(finfo->info.b_data);
free(finfo);
}
#endif

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#ifndef HEADER_CURL_FILEINFO_H
#define HEADER_CURL_FILEINFO_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2010 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <curl/curl.h>
#include "llist.h"
struct fileinfo {
struct curl_fileinfo info;
struct curl_llist_element list;
};
struct fileinfo *Curl_fileinfo_alloc(void);
void Curl_fileinfo_cleanup(struct fileinfo *finfo);
#endif /* HEADER_CURL_FILEINFO_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "formdata.h"
#if !defined(CURL_DISABLE_HTTP) && !defined(CURL_DISABLE_MIME)
#if defined(HAVE_LIBGEN_H) && defined(HAVE_BASENAME)
#include <libgen.h>
#endif
#include "urldata.h" /* for struct Curl_easy */
#include "mime.h"
#include "non-ascii.h"
#include "vtls/vtls.h"
#include "strcase.h"
#include "sendf.h"
#include "strdup.h"
#include "rand.h"
#include "warnless.h"
/* The last 3 #include files should be in this order */
#include "curl_printf.h"
#include "curl_memory.h"
#include "memdebug.h"
#define HTTPPOST_PTRNAME CURL_HTTPPOST_PTRNAME
#define HTTPPOST_FILENAME CURL_HTTPPOST_FILENAME
#define HTTPPOST_PTRCONTENTS CURL_HTTPPOST_PTRCONTENTS
#define HTTPPOST_READFILE CURL_HTTPPOST_READFILE
#define HTTPPOST_PTRBUFFER CURL_HTTPPOST_PTRBUFFER
#define HTTPPOST_CALLBACK CURL_HTTPPOST_CALLBACK
#define HTTPPOST_BUFFER CURL_HTTPPOST_BUFFER
/***************************************************************************
*
* AddHttpPost()
*
* Adds a HttpPost structure to the list, if parent_post is given becomes
* a subpost of parent_post instead of a direct list element.
*
* Returns newly allocated HttpPost on success and NULL if malloc failed.
*
***************************************************************************/
static struct curl_httppost *
AddHttpPost(char *name, size_t namelength,
char *value, curl_off_t contentslength,
char *buffer, size_t bufferlength,
char *contenttype,
long flags,
struct curl_slist *contentHeader,
char *showfilename, char *userp,
struct curl_httppost *parent_post,
struct curl_httppost **httppost,
struct curl_httppost **last_post)
{
struct curl_httppost *post;
post = calloc(1, sizeof(struct curl_httppost));
if(post) {
post->name = name;
post->namelength = (long)(name?(namelength?namelength:strlen(name)):0);
post->contents = value;
post->contentlen = contentslength;
post->buffer = buffer;
post->bufferlength = (long)bufferlength;
post->contenttype = contenttype;
post->contentheader = contentHeader;
post->showfilename = showfilename;
post->userp = userp;
post->flags = flags | CURL_HTTPPOST_LARGE;
}
else
return NULL;
if(parent_post) {
/* now, point our 'more' to the original 'more' */
post->more = parent_post->more;
/* then move the original 'more' to point to ourselves */
parent_post->more = post;
}
else {
/* make the previous point to this */
if(*last_post)
(*last_post)->next = post;
else
(*httppost) = post;
(*last_post) = post;
}
return post;
}
/***************************************************************************
*
* AddFormInfo()
*
* Adds a FormInfo structure to the list presented by parent_form_info.
*
* Returns newly allocated FormInfo on success and NULL if malloc failed/
* parent_form_info is NULL.
*
***************************************************************************/
static FormInfo * AddFormInfo(char *value,
char *contenttype,
FormInfo *parent_form_info)
{
FormInfo *form_info;
form_info = calloc(1, sizeof(struct FormInfo));
if(form_info) {
if(value)
form_info->value = value;
if(contenttype)
form_info->contenttype = contenttype;
form_info->flags = HTTPPOST_FILENAME;
}
else
return NULL;
if(parent_form_info) {
/* now, point our 'more' to the original 'more' */
form_info->more = parent_form_info->more;
/* then move the original 'more' to point to ourselves */
parent_form_info->more = form_info;
}
return form_info;
}
/***************************************************************************
*
* FormAdd()
*
* Stores a formpost parameter and builds the appropriate linked list.
*
* Has two principal functionalities: using files and byte arrays as
* post parts. Byte arrays are either copied or just the pointer is stored
* (as the user requests) while for files only the filename and not the
* content is stored.
*
* While you may have only one byte array for each name, multiple filenames
* are allowed (and because of this feature CURLFORM_END is needed after
* using CURLFORM_FILE).
*
* Examples:
*
* Simple name/value pair with copied contents:
* curl_formadd (&post, &last, CURLFORM_COPYNAME, "name",
* CURLFORM_COPYCONTENTS, "value", CURLFORM_END);
*
* name/value pair where only the content pointer is remembered:
* curl_formadd (&post, &last, CURLFORM_COPYNAME, "name",
* CURLFORM_PTRCONTENTS, ptr, CURLFORM_CONTENTSLENGTH, 10, CURLFORM_END);
* (if CURLFORM_CONTENTSLENGTH is missing strlen () is used)
*
* storing a filename (CONTENTTYPE is optional!):
* curl_formadd (&post, &last, CURLFORM_COPYNAME, "name",
* CURLFORM_FILE, "filename1", CURLFORM_CONTENTTYPE, "plain/text",
* CURLFORM_END);
*
* storing multiple filenames:
* curl_formadd (&post, &last, CURLFORM_COPYNAME, "name",
* CURLFORM_FILE, "filename1", CURLFORM_FILE, "filename2", CURLFORM_END);
*
* Returns:
* CURL_FORMADD_OK on success
* CURL_FORMADD_MEMORY if the FormInfo allocation fails
* CURL_FORMADD_OPTION_TWICE if one option is given twice for one Form
* CURL_FORMADD_NULL if a null pointer was given for a char
* CURL_FORMADD_MEMORY if the allocation of a FormInfo struct failed
* CURL_FORMADD_UNKNOWN_OPTION if an unknown option was used
* CURL_FORMADD_INCOMPLETE if the some FormInfo is not complete (or error)
* CURL_FORMADD_MEMORY if a HttpPost struct cannot be allocated
* CURL_FORMADD_MEMORY if some allocation for string copying failed.
* CURL_FORMADD_ILLEGAL_ARRAY if an illegal option is used in an array
*
***************************************************************************/
static
CURLFORMcode FormAdd(struct curl_httppost **httppost,
struct curl_httppost **last_post,
va_list params)
{
FormInfo *first_form, *current_form, *form = NULL;
CURLFORMcode return_value = CURL_FORMADD_OK;
const char *prevtype = NULL;
struct curl_httppost *post = NULL;
CURLformoption option;
struct curl_forms *forms = NULL;
char *array_value = NULL; /* value read from an array */
/* This is a state variable, that if TRUE means that we're parsing an
array that we got passed to us. If FALSE we're parsing the input
va_list arguments. */
bool array_state = FALSE;
/*
* We need to allocate the first struct to fill in.
*/
first_form = calloc(1, sizeof(struct FormInfo));
if(!first_form)
return CURL_FORMADD_MEMORY;
current_form = first_form;
/*
* Loop through all the options set. Break if we have an error to report.
*/
while(return_value == CURL_FORMADD_OK) {
/* first see if we have more parts of the array param */
if(array_state && forms) {
/* get the upcoming option from the given array */
option = forms->option;
array_value = (char *)forms->value;
forms++; /* advance this to next entry */
if(CURLFORM_END == option) {
/* end of array state */
array_state = FALSE;
continue;
}
}
else {
/* This is not array-state, get next option */
option = va_arg(params, CURLformoption);
if(CURLFORM_END == option)
break;
}
switch(option) {
case CURLFORM_ARRAY:
if(array_state)
/* we don't support an array from within an array */
return_value = CURL_FORMADD_ILLEGAL_ARRAY;
else {
forms = va_arg(params, struct curl_forms *);
if(forms)
array_state = TRUE;
else
return_value = CURL_FORMADD_NULL;
}
break;
/*
* Set the Name property.
*/
case CURLFORM_PTRNAME:
#ifdef CURL_DOES_CONVERSIONS
/* Treat CURLFORM_PTR like CURLFORM_COPYNAME so that libcurl will copy
* the data in all cases so that we'll have safe memory for the eventual
* conversion.
*/
#else
current_form->flags |= HTTPPOST_PTRNAME; /* fall through */
#endif
/* FALLTHROUGH */
case CURLFORM_COPYNAME:
if(current_form->name)
return_value = CURL_FORMADD_OPTION_TWICE;
else {
char *name = array_state?
array_value:va_arg(params, char *);
if(name)
current_form->name = name; /* store for the moment */
else
return_value = CURL_FORMADD_NULL;
}
break;
case CURLFORM_NAMELENGTH:
if(current_form->namelength)
return_value = CURL_FORMADD_OPTION_TWICE;
else
current_form->namelength =
array_state?(size_t)array_value:(size_t)va_arg(params, long);
break;
/*
* Set the contents property.
*/
case CURLFORM_PTRCONTENTS:
current_form->flags |= HTTPPOST_PTRCONTENTS;
/* FALLTHROUGH */
case CURLFORM_COPYCONTENTS:
if(current_form->value)
return_value = CURL_FORMADD_OPTION_TWICE;
else {
char *value =
array_state?array_value:va_arg(params, char *);
if(value)
current_form->value = value; /* store for the moment */
else
return_value = CURL_FORMADD_NULL;
}
break;
case CURLFORM_CONTENTSLENGTH:
current_form->contentslength =
array_state?(size_t)array_value:(size_t)va_arg(params, long);
break;
case CURLFORM_CONTENTLEN:
current_form->flags |= CURL_HTTPPOST_LARGE;
current_form->contentslength =
array_state?(curl_off_t)(size_t)array_value:va_arg(params, curl_off_t);
break;
/* Get contents from a given file name */
case CURLFORM_FILECONTENT:
if(current_form->flags & (HTTPPOST_PTRCONTENTS|HTTPPOST_READFILE))
return_value = CURL_FORMADD_OPTION_TWICE;
else {
const char *filename = array_state?
array_value:va_arg(params, char *);
if(filename) {
current_form->value = strdup(filename);
if(!current_form->value)
return_value = CURL_FORMADD_MEMORY;
else {
current_form->flags |= HTTPPOST_READFILE;
current_form->value_alloc = TRUE;
}
}
else
return_value = CURL_FORMADD_NULL;
}
break;
/* We upload a file */
case CURLFORM_FILE:
{
const char *filename = array_state?array_value:
va_arg(params, char *);
if(current_form->value) {
if(current_form->flags & HTTPPOST_FILENAME) {
if(filename) {
char *fname = strdup(filename);
if(!fname)
return_value = CURL_FORMADD_MEMORY;
else {
form = AddFormInfo(fname, NULL, current_form);
if(!form) {
free(fname);
return_value = CURL_FORMADD_MEMORY;
}
else {
form->value_alloc = TRUE;
current_form = form;
form = NULL;
}
}
}
else
return_value = CURL_FORMADD_NULL;
}
else
return_value = CURL_FORMADD_OPTION_TWICE;
}
else {
if(filename) {
current_form->value = strdup(filename);
if(!current_form->value)
return_value = CURL_FORMADD_MEMORY;
else {
current_form->flags |= HTTPPOST_FILENAME;
current_form->value_alloc = TRUE;
}
}
else
return_value = CURL_FORMADD_NULL;
}
break;
}
case CURLFORM_BUFFERPTR:
current_form->flags |= HTTPPOST_PTRBUFFER|HTTPPOST_BUFFER;
if(current_form->buffer)
return_value = CURL_FORMADD_OPTION_TWICE;
else {
char *buffer =
array_state?array_value:va_arg(params, char *);
if(buffer) {
current_form->buffer = buffer; /* store for the moment */
current_form->value = buffer; /* make it non-NULL to be accepted
as fine */
}
else
return_value = CURL_FORMADD_NULL;
}
break;
case CURLFORM_BUFFERLENGTH:
if(current_form->bufferlength)
return_value = CURL_FORMADD_OPTION_TWICE;
else
current_form->bufferlength =
array_state?(size_t)array_value:(size_t)va_arg(params, long);
break;
case CURLFORM_STREAM:
current_form->flags |= HTTPPOST_CALLBACK;
if(current_form->userp)
return_value = CURL_FORMADD_OPTION_TWICE;
else {
char *userp =
array_state?array_value:va_arg(params, char *);
if(userp) {
current_form->userp = userp;
current_form->value = userp; /* this isn't strictly true but we
derive a value from this later on
and we need this non-NULL to be
accepted as a fine form part */
}
else
return_value = CURL_FORMADD_NULL;
}
break;
case CURLFORM_CONTENTTYPE:
{
const char *contenttype =
array_state?array_value:va_arg(params, char *);
if(current_form->contenttype) {
if(current_form->flags & HTTPPOST_FILENAME) {
if(contenttype) {
char *type = strdup(contenttype);
if(!type)
return_value = CURL_FORMADD_MEMORY;
else {
form = AddFormInfo(NULL, type, current_form);
if(!form) {
free(type);
return_value = CURL_FORMADD_MEMORY;
}
else {
form->contenttype_alloc = TRUE;
current_form = form;
form = NULL;
}
}
}
else
return_value = CURL_FORMADD_NULL;
}
else
return_value = CURL_FORMADD_OPTION_TWICE;
}
else {
if(contenttype) {
current_form->contenttype = strdup(contenttype);
if(!current_form->contenttype)
return_value = CURL_FORMADD_MEMORY;
else
current_form->contenttype_alloc = TRUE;
}
else
return_value = CURL_FORMADD_NULL;
}
break;
}
case CURLFORM_CONTENTHEADER:
{
/* this "cast increases required alignment of target type" but
we consider it OK anyway */
struct curl_slist *list = array_state?
(struct curl_slist *)(void *)array_value:
va_arg(params, struct curl_slist *);
if(current_form->contentheader)
return_value = CURL_FORMADD_OPTION_TWICE;
else
current_form->contentheader = list;
break;
}
case CURLFORM_FILENAME:
case CURLFORM_BUFFER:
{
const char *filename = array_state?array_value:
va_arg(params, char *);
if(current_form->showfilename)
return_value = CURL_FORMADD_OPTION_TWICE;
else {
current_form->showfilename = strdup(filename);
if(!current_form->showfilename)
return_value = CURL_FORMADD_MEMORY;
else
current_form->showfilename_alloc = TRUE;
}
break;
}
default:
return_value = CURL_FORMADD_UNKNOWN_OPTION;
break;
}
}
if(CURL_FORMADD_OK != return_value) {
/* On error, free allocated fields for all nodes of the FormInfo linked
list without deallocating nodes. List nodes are deallocated later on */
FormInfo *ptr;
for(ptr = first_form; ptr != NULL; ptr = ptr->more) {
if(ptr->name_alloc) {
Curl_safefree(ptr->name);
ptr->name_alloc = FALSE;
}
if(ptr->value_alloc) {
Curl_safefree(ptr->value);
ptr->value_alloc = FALSE;
}
if(ptr->contenttype_alloc) {
Curl_safefree(ptr->contenttype);
ptr->contenttype_alloc = FALSE;
}
if(ptr->showfilename_alloc) {
Curl_safefree(ptr->showfilename);
ptr->showfilename_alloc = FALSE;
}
}
}
if(CURL_FORMADD_OK == return_value) {
/* go through the list, check for completeness and if everything is
* alright add the HttpPost item otherwise set return_value accordingly */
post = NULL;
for(form = first_form;
form != NULL;
form = form->more) {
if(((!form->name || !form->value) && !post) ||
( (form->contentslength) &&
(form->flags & HTTPPOST_FILENAME) ) ||
( (form->flags & HTTPPOST_FILENAME) &&
(form->flags & HTTPPOST_PTRCONTENTS) ) ||
( (!form->buffer) &&
(form->flags & HTTPPOST_BUFFER) &&
(form->flags & HTTPPOST_PTRBUFFER) ) ||
( (form->flags & HTTPPOST_READFILE) &&
(form->flags & HTTPPOST_PTRCONTENTS) )
) {
return_value = CURL_FORMADD_INCOMPLETE;
break;
}
if(((form->flags & HTTPPOST_FILENAME) ||
(form->flags & HTTPPOST_BUFFER)) &&
!form->contenttype) {
char *f = (form->flags & HTTPPOST_BUFFER)?
form->showfilename : form->value;
char const *type;
type = Curl_mime_contenttype(f);
if(!type)
type = prevtype;
if(!type)
type = FILE_CONTENTTYPE_DEFAULT;
/* our contenttype is missing */
form->contenttype = strdup(type);
if(!form->contenttype) {
return_value = CURL_FORMADD_MEMORY;
break;
}
form->contenttype_alloc = TRUE;
}
if(form->name && form->namelength) {
/* Name should not contain nul bytes. */
size_t i;
for(i = 0; i < form->namelength; i++)
if(!form->name[i]) {
return_value = CURL_FORMADD_NULL;
break;
}
if(return_value != CURL_FORMADD_OK)
break;
}
if(!(form->flags & HTTPPOST_PTRNAME) &&
(form == first_form) ) {
/* Note that there's small risk that form->name is NULL here if the
app passed in a bad combo, so we better check for that first. */
if(form->name) {
/* copy name (without strdup; possibly not nul-terminated) */
form->name = Curl_memdup(form->name, form->namelength?
form->namelength:
strlen(form->name) + 1);
}
if(!form->name) {
return_value = CURL_FORMADD_MEMORY;
break;
}
form->name_alloc = TRUE;
}
if(!(form->flags & (HTTPPOST_FILENAME | HTTPPOST_READFILE |
HTTPPOST_PTRCONTENTS | HTTPPOST_PTRBUFFER |
HTTPPOST_CALLBACK)) && form->value) {
/* copy value (without strdup; possibly contains null characters) */
size_t clen = (size_t) form->contentslength;
if(!clen)
clen = strlen(form->value) + 1;
form->value = Curl_memdup(form->value, clen);
if(!form->value) {
return_value = CURL_FORMADD_MEMORY;
break;
}
form->value_alloc = TRUE;
}
post = AddHttpPost(form->name, form->namelength,
form->value, form->contentslength,
form->buffer, form->bufferlength,
form->contenttype, form->flags,
form->contentheader, form->showfilename,
form->userp,
post, httppost,
last_post);
if(!post) {
return_value = CURL_FORMADD_MEMORY;
break;
}
if(form->contenttype)
prevtype = form->contenttype;
}
if(CURL_FORMADD_OK != return_value) {
/* On error, free allocated fields for nodes of the FormInfo linked
list which are not already owned by the httppost linked list
without deallocating nodes. List nodes are deallocated later on */
FormInfo *ptr;
for(ptr = form; ptr != NULL; ptr = ptr->more) {
if(ptr->name_alloc) {
Curl_safefree(ptr->name);
ptr->name_alloc = FALSE;
}
if(ptr->value_alloc) {
Curl_safefree(ptr->value);
ptr->value_alloc = FALSE;
}
if(ptr->contenttype_alloc) {
Curl_safefree(ptr->contenttype);
ptr->contenttype_alloc = FALSE;
}
if(ptr->showfilename_alloc) {
Curl_safefree(ptr->showfilename);
ptr->showfilename_alloc = FALSE;
}
}
}
}
/* Always deallocate FormInfo linked list nodes without touching node
fields given that these have either been deallocated or are owned
now by the httppost linked list */
while(first_form) {
FormInfo *ptr = first_form->more;
free(first_form);
first_form = ptr;
}
return return_value;
}
/*
* curl_formadd() is a public API to add a section to the multipart formpost.
*
* @unittest: 1308
*/
CURLFORMcode curl_formadd(struct curl_httppost **httppost,
struct curl_httppost **last_post,
...)
{
va_list arg;
CURLFORMcode result;
va_start(arg, last_post);
result = FormAdd(httppost, last_post, arg);
va_end(arg);
return result;
}
/*
* curl_formget()
* Serialize a curl_httppost struct.
* Returns 0 on success.
*
* @unittest: 1308
*/
int curl_formget(struct curl_httppost *form, void *arg,
curl_formget_callback append)
{
CURLcode result;
curl_mimepart toppart;
Curl_mime_initpart(&toppart, NULL); /* default form is empty */
result = Curl_getformdata(NULL, &toppart, form, NULL);
if(!result)
result = Curl_mime_prepare_headers(&toppart, "multipart/form-data",
NULL, MIMESTRATEGY_FORM);
while(!result) {
char buffer[8192];
size_t nread = Curl_mime_read(buffer, 1, sizeof(buffer), &toppart);
if(!nread)
break;
switch(nread) {
default:
if(append(arg, buffer, nread) != nread)
result = CURLE_READ_ERROR;
break;
case CURL_READFUNC_ABORT:
case CURL_READFUNC_PAUSE:
break;
}
}
Curl_mime_cleanpart(&toppart);
return (int) result;
}
/*
* curl_formfree() is an external function to free up a whole form post
* chain
*/
void curl_formfree(struct curl_httppost *form)
{
struct curl_httppost *next;
if(!form)
/* no form to free, just get out of this */
return;
do {
next = form->next; /* the following form line */
/* recurse to sub-contents */
curl_formfree(form->more);
if(!(form->flags & HTTPPOST_PTRNAME))
free(form->name); /* free the name */
if(!(form->flags &
(HTTPPOST_PTRCONTENTS|HTTPPOST_BUFFER|HTTPPOST_CALLBACK))
)
free(form->contents); /* free the contents */
free(form->contenttype); /* free the content type */
free(form->showfilename); /* free the faked file name */
free(form); /* free the struct */
form = next;
} while(form); /* continue */
}
/* Set mime part name, taking care of non nul-terminated name string. */
static CURLcode setname(curl_mimepart *part, const char *name, size_t len)
{
char *zname;
CURLcode res;
if(!name || !len)
return curl_mime_name(part, name);
zname = malloc(len + 1);
if(!zname)
return CURLE_OUT_OF_MEMORY;
memcpy(zname, name, len);
zname[len] = '\0';
res = curl_mime_name(part, zname);
free(zname);
return res;
}
/*
* Curl_getformdata() converts a linked list of "meta data" into a mime
* structure. The input list is in 'post', while the output is stored in
* mime part at '*finalform'.
*
* This function will not do a failf() for the potential memory failures but
* should for all other errors it spots. Just note that this function MAY get
* a NULL pointer in the 'data' argument.
*/
CURLcode Curl_getformdata(struct Curl_easy *data,
curl_mimepart *finalform,
struct curl_httppost *post,
curl_read_callback fread_func)
{
CURLcode result = CURLE_OK;
curl_mime *form = NULL;
curl_mimepart *part;
struct curl_httppost *file;
Curl_mime_cleanpart(finalform); /* default form is empty */
if(!post)
return result; /* no input => no output! */
form = curl_mime_init(data);
if(!form)
result = CURLE_OUT_OF_MEMORY;
if(!result)
result = curl_mime_subparts(finalform, form);
/* Process each top part. */
for(; !result && post; post = post->next) {
/* If we have more than a file here, create a mime subpart and fill it. */
curl_mime *multipart = form;
if(post->more) {
part = curl_mime_addpart(form);
if(!part)
result = CURLE_OUT_OF_MEMORY;
if(!result)
result = setname(part, post->name, post->namelength);
if(!result) {
multipart = curl_mime_init(data);
if(!multipart)
result = CURLE_OUT_OF_MEMORY;
}
if(!result)
result = curl_mime_subparts(part, multipart);
}
/* Generate all the part contents. */
for(file = post; !result && file; file = file->more) {
/* Create the part. */
part = curl_mime_addpart(multipart);
if(!part)
result = CURLE_OUT_OF_MEMORY;
/* Set the headers. */
if(!result)
result = curl_mime_headers(part, file->contentheader, 0);
/* Set the content type. */
if(!result && file->contenttype)
result = curl_mime_type(part, file->contenttype);
/* Set field name. */
if(!result && !post->more)
result = setname(part, post->name, post->namelength);
/* Process contents. */
if(!result) {
curl_off_t clen = post->contentslength;
if(post->flags & CURL_HTTPPOST_LARGE)
clen = post->contentlen;
if(!clen)
clen = -1;
if(post->flags & (HTTPPOST_FILENAME | HTTPPOST_READFILE)) {
if(!strcmp(file->contents, "-")) {
/* There are a few cases where the code below won't work; in
particular, freopen(stdin) by the caller is not guaranteed
to result as expected. This feature has been kept for backward
compatibility: use of "-" pseudo file name should be avoided. */
result = curl_mime_data_cb(part, (curl_off_t) -1,
(curl_read_callback) fread,
CURLX_FUNCTION_CAST(curl_seek_callback,
fseek),
NULL, (void *) stdin);
}
else
result = curl_mime_filedata(part, file->contents);
if(!result && (post->flags & HTTPPOST_READFILE))
result = curl_mime_filename(part, NULL);
}
else if(post->flags & HTTPPOST_BUFFER)
result = curl_mime_data(part, post->buffer,
post->bufferlength? post->bufferlength: -1);
else if(post->flags & HTTPPOST_CALLBACK)
/* the contents should be read with the callback and the size is set
with the contentslength */
result = curl_mime_data_cb(part, clen,
fread_func, NULL, NULL, post->userp);
else {
result = curl_mime_data(part, post->contents, (ssize_t) clen);
#ifdef CURL_DOES_CONVERSIONS
/* Convert textual contents now. */
if(!result && data && part->datasize)
result = Curl_convert_to_network(data, part->data, part->datasize);
#endif
}
}
/* Set fake file name. */
if(!result && post->showfilename)
if(post->more || (post->flags & (HTTPPOST_FILENAME | HTTPPOST_BUFFER |
HTTPPOST_CALLBACK)))
result = curl_mime_filename(part, post->showfilename);
}
}
if(result)
Curl_mime_cleanpart(finalform);
return result;
}
#else
/* if disabled */
CURLFORMcode curl_formadd(struct curl_httppost **httppost,
struct curl_httppost **last_post,
...)
{
(void)httppost;
(void)last_post;
return CURL_FORMADD_DISABLED;
}
int curl_formget(struct curl_httppost *form, void *arg,
curl_formget_callback append)
{
(void) form;
(void) arg;
(void) append;
return CURL_FORMADD_DISABLED;
}
void curl_formfree(struct curl_httppost *form)
{
(void)form;
/* does nothing HTTP is disabled */
}
#endif /* if disabled */

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#ifndef HEADER_CURL_FORMDATA_H
#define HEADER_CURL_FORMDATA_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_MIME
/* used by FormAdd for temporary storage */
typedef struct FormInfo {
char *name;
bool name_alloc;
size_t namelength;
char *value;
bool value_alloc;
curl_off_t contentslength;
char *contenttype;
bool contenttype_alloc;
long flags;
char *buffer; /* pointer to existing buffer used for file upload */
size_t bufferlength;
char *showfilename; /* The file name to show. If not set, the actual
file name will be used */
bool showfilename_alloc;
char *userp; /* pointer for the read callback */
struct curl_slist *contentheader;
struct FormInfo *more;
} FormInfo;
CURLcode Curl_getformdata(struct Curl_easy *data,
curl_mimepart *,
struct curl_httppost *post,
curl_read_callback fread_func);
#else
/* disabled */
#define Curl_getformdata(a,b,c,d) CURLE_NOT_BUILT_IN
#endif
#endif /* HEADER_CURL_FORMDATA_H */

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#ifndef HEADER_CURL_FTP_H
#define HEADER_CURL_FTP_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "pingpong.h"
#ifndef CURL_DISABLE_FTP
extern const struct Curl_handler Curl_handler_ftp;
#ifdef USE_SSL
extern const struct Curl_handler Curl_handler_ftps;
#endif
CURLcode Curl_ftpsend(struct connectdata *, const char *cmd);
CURLcode Curl_GetFTPResponse(ssize_t *nread, struct connectdata *conn,
int *ftpcode);
#endif /* CURL_DISABLE_FTP */
/****************************************************************************
* FTP unique setup
***************************************************************************/
typedef enum {
FTP_STOP, /* do nothing state, stops the state machine */
FTP_WAIT220, /* waiting for the initial 220 response immediately after
a connect */
FTP_AUTH,
FTP_USER,
FTP_PASS,
FTP_ACCT,
FTP_PBSZ,
FTP_PROT,
FTP_CCC,
FTP_PWD,
FTP_SYST,
FTP_NAMEFMT,
FTP_QUOTE, /* waiting for a response to a command sent in a quote list */
FTP_RETR_PREQUOTE,
FTP_STOR_PREQUOTE,
FTP_POSTQUOTE,
FTP_CWD, /* change dir */
FTP_MKD, /* if the dir didn't exist */
FTP_MDTM, /* to figure out the datestamp */
FTP_TYPE, /* to set type when doing a head-like request */
FTP_LIST_TYPE, /* set type when about to do a dir list */
FTP_RETR_TYPE, /* set type when about to RETR a file */
FTP_STOR_TYPE, /* set type when about to STOR a file */
FTP_SIZE, /* get the remote file's size for head-like request */
FTP_RETR_SIZE, /* get the remote file's size for RETR */
FTP_STOR_SIZE, /* get the size for STOR */
FTP_REST, /* when used to check if the server supports it in head-like */
FTP_RETR_REST, /* when asking for "resume" in for RETR */
FTP_PORT, /* generic state for PORT, LPRT and EPRT, check count1 */
FTP_PRET, /* generic state for PRET RETR, PRET STOR and PRET LIST/NLST */
FTP_PASV, /* generic state for PASV and EPSV, check count1 */
FTP_LIST, /* generic state for LIST, NLST or a custom list command */
FTP_RETR,
FTP_STOR, /* generic state for STOR and APPE */
FTP_QUIT,
FTP_LAST /* never used */
} ftpstate;
struct ftp_parselist_data; /* defined later in ftplistparser.c */
struct ftp_wc {
struct ftp_parselist_data *parser;
struct {
curl_write_callback write_function;
FILE *file_descriptor;
} backup;
};
typedef enum {
FTPFILE_MULTICWD = 1, /* as defined by RFC1738 */
FTPFILE_NOCWD = 2, /* use SIZE / RETR / STOR on the full path */
FTPFILE_SINGLECWD = 3 /* make one CWD, then SIZE / RETR / STOR on the
file */
} curl_ftpfile;
/* This FTP struct is used in the Curl_easy. All FTP data that is
connection-oriented must be in FTP_conn to properly deal with the fact that
perhaps the Curl_easy is changed between the times the connection is
used. */
struct FTP {
char *user; /* user name string */
char *passwd; /* password string */
char *path; /* points to the urlpieces struct field */
char *pathalloc; /* if non-NULL a pointer to an allocated path */
/* transfer a file/body or not, done as a typedefed enum just to make
debuggers display the full symbol and not just the numerical value */
curl_pp_transfer transfer;
curl_off_t downloadsize;
};
/* ftp_conn is used for struct connection-oriented data in the connectdata
struct */
struct ftp_conn {
struct pingpong pp;
char *entrypath; /* the PWD reply when we logged on */
char **dirs; /* realloc()ed array for path components */
int dirdepth; /* number of entries used in the 'dirs' array */
int diralloc; /* number of entries allocated for the 'dirs' array */
char *file; /* decoded file */
bool dont_check; /* Set to TRUE to prevent the final (post-transfer)
file size and 226/250 status check. It should still
read the line, just ignore the result. */
bool ctl_valid; /* Tells Curl_ftp_quit() whether or not to do anything. If
the connection has timed out or been closed, this
should be FALSE when it gets to Curl_ftp_quit() */
bool cwddone; /* if it has been determined that the proper CWD combo
already has been done */
int cwdcount; /* number of CWD commands issued */
bool cwdfail; /* set TRUE if a CWD command fails, as then we must prevent
caching the current directory */
bool wait_data_conn; /* this is set TRUE if data connection is waited */
char *prevpath; /* conn->path from the previous transfer */
curl_ftpfile prevmethod; /* ftp method in previous transfer */
char transfertype; /* set by ftp_transfertype for use by Curl_client_write()a
and others (A/I or zero) */
int count1; /* general purpose counter for the state machine */
int count2; /* general purpose counter for the state machine */
int count3; /* general purpose counter for the state machine */
ftpstate state; /* always use ftp.c:state() to change state! */
ftpstate state_saved; /* transfer type saved to be reloaded after
data connection is established */
curl_off_t retr_size_saved; /* Size of retrieved file saved */
char *server_os; /* The target server operating system. */
curl_off_t known_filesize; /* file size is different from -1, if wildcard
LIST parsing was done and wc_statemach set
it */
/* newhost is the (allocated) IP addr or host name to connect the data
connection to */
char *newhost; /* this is the pair to connect the DATA... */
unsigned short newport; /* connection to */
};
#define DEFAULT_ACCEPT_TIMEOUT 60000 /* milliseconds == one minute */
#endif /* HEADER_CURL_FTP_H */

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#ifndef HEADER_CURL_FTPLISTPARSER_H
#define HEADER_CURL_FTPLISTPARSER_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_FTP
/* WRITEFUNCTION callback for parsing LIST responses */
size_t Curl_ftp_parselist(char *buffer, size_t size, size_t nmemb,
void *connptr);
struct ftp_parselist_data; /* defined inside ftplibparser.c */
CURLcode Curl_ftp_parselist_geterror(struct ftp_parselist_data *pl_data);
struct ftp_parselist_data *Curl_ftp_parselist_data_alloc(void);
void Curl_ftp_parselist_data_free(struct ftp_parselist_data **pl_data);
#endif /* CURL_DISABLE_FTP */
#endif /* HEADER_CURL_FTPLISTPARSER_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "curl_memory.h"
#include "memdebug.h"
static
char *GetEnv(const char *variable)
{
#if defined(_WIN32_WCE) || defined(CURL_WINDOWS_APP)
(void)variable;
return NULL;
#else
#ifdef WIN32
char env[MAX_PATH]; /* MAX_PATH is from windef.h */
char *temp = getenv(variable);
env[0] = '\0';
if(temp != NULL)
ExpandEnvironmentStringsA(temp, env, sizeof(env));
return (env[0] != '\0')?strdup(env):NULL;
#else
char *env = getenv(variable);
return (env && env[0])?strdup(env):NULL;
#endif
#endif
}
char *curl_getenv(const char *v)
{
return GetEnv(v);
}

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "urldata.h"
#include "getinfo.h"
#include "vtls/vtls.h"
#include "connect.h" /* Curl_getconnectinfo() */
#include "progress.h"
/* The last #include files should be: */
#include "curl_memory.h"
#include "memdebug.h"
/*
* Initialize statistical and informational data.
*
* This function is called in curl_easy_reset, curl_easy_duphandle and at the
* beginning of a perform session. It must reset the session-info variables,
* in particular all variables in struct PureInfo.
*/
CURLcode Curl_initinfo(struct Curl_easy *data)
{
struct Progress *pro = &data->progress;
struct PureInfo *info = &data->info;
pro->t_nslookup = 0;
pro->t_connect = 0;
pro->t_appconnect = 0;
pro->t_pretransfer = 0;
pro->t_starttransfer = 0;
pro->timespent = 0;
pro->t_redirect = 0;
pro->is_t_startransfer_set = false;
info->httpcode = 0;
info->httpproxycode = 0;
info->httpversion = 0;
info->filetime = -1; /* -1 is an illegal time and thus means unknown */
info->timecond = FALSE;
info->header_size = 0;
info->request_size = 0;
info->proxyauthavail = 0;
info->httpauthavail = 0;
info->numconnects = 0;
free(info->contenttype);
info->contenttype = NULL;
free(info->wouldredirect);
info->wouldredirect = NULL;
info->conn_primary_ip[0] = '\0';
info->conn_local_ip[0] = '\0';
info->conn_primary_port = 0;
info->conn_local_port = 0;
info->conn_scheme = 0;
info->conn_protocol = 0;
#ifdef USE_SSL
Curl_ssl_free_certinfo(data);
#endif
return CURLE_OK;
}
static CURLcode getinfo_char(struct Curl_easy *data, CURLINFO info,
const char **param_charp)
{
switch(info) {
case CURLINFO_EFFECTIVE_URL:
*param_charp = data->change.url?data->change.url:(char *)"";
break;
case CURLINFO_CONTENT_TYPE:
*param_charp = data->info.contenttype;
break;
case CURLINFO_PRIVATE:
*param_charp = (char *) data->set.private_data;
break;
case CURLINFO_FTP_ENTRY_PATH:
/* Return the entrypath string from the most recent connection.
This pointer was copied from the connectdata structure by FTP.
The actual string may be free()ed by subsequent libcurl calls so
it must be copied to a safer area before the next libcurl call.
Callers must never free it themselves. */
*param_charp = data->state.most_recent_ftp_entrypath;
break;
case CURLINFO_REDIRECT_URL:
/* Return the URL this request would have been redirected to if that
option had been enabled! */
*param_charp = data->info.wouldredirect;
break;
case CURLINFO_PRIMARY_IP:
/* Return the ip address of the most recent (primary) connection */
*param_charp = data->info.conn_primary_ip;
break;
case CURLINFO_LOCAL_IP:
/* Return the source/local ip address of the most recent (primary)
connection */
*param_charp = data->info.conn_local_ip;
break;
case CURLINFO_RTSP_SESSION_ID:
*param_charp = data->set.str[STRING_RTSP_SESSION_ID];
break;
case CURLINFO_SCHEME:
*param_charp = data->info.conn_scheme;
break;
default:
return CURLE_UNKNOWN_OPTION;
}
return CURLE_OK;
}
static CURLcode getinfo_long(struct Curl_easy *data, CURLINFO info,
long *param_longp)
{
curl_socket_t sockfd;
union {
unsigned long *to_ulong;
long *to_long;
} lptr;
switch(info) {
case CURLINFO_RESPONSE_CODE:
*param_longp = data->info.httpcode;
break;
case CURLINFO_HTTP_CONNECTCODE:
*param_longp = data->info.httpproxycode;
break;
case CURLINFO_FILETIME:
if(data->info.filetime > LONG_MAX)
*param_longp = LONG_MAX;
else if(data->info.filetime < LONG_MIN)
*param_longp = LONG_MIN;
else
*param_longp = (long)data->info.filetime;
break;
case CURLINFO_HEADER_SIZE:
*param_longp = (long)data->info.header_size;
break;
case CURLINFO_REQUEST_SIZE:
*param_longp = (long)data->info.request_size;
break;
case CURLINFO_SSL_VERIFYRESULT:
*param_longp = data->set.ssl.certverifyresult;
break;
case CURLINFO_PROXY_SSL_VERIFYRESULT:
*param_longp = data->set.proxy_ssl.certverifyresult;
break;
case CURLINFO_REDIRECT_COUNT:
*param_longp = data->set.followlocation;
break;
case CURLINFO_HTTPAUTH_AVAIL:
lptr.to_long = param_longp;
*lptr.to_ulong = data->info.httpauthavail;
break;
case CURLINFO_PROXYAUTH_AVAIL:
lptr.to_long = param_longp;
*lptr.to_ulong = data->info.proxyauthavail;
break;
case CURLINFO_OS_ERRNO:
*param_longp = data->state.os_errno;
break;
case CURLINFO_NUM_CONNECTS:
*param_longp = data->info.numconnects;
break;
case CURLINFO_LASTSOCKET:
sockfd = Curl_getconnectinfo(data, NULL);
/* note: this is not a good conversion for systems with 64 bit sockets and
32 bit longs */
if(sockfd != CURL_SOCKET_BAD)
*param_longp = (long)sockfd;
else
/* this interface is documented to return -1 in case of badness, which
may not be the same as the CURL_SOCKET_BAD value */
*param_longp = -1;
break;
case CURLINFO_PRIMARY_PORT:
/* Return the (remote) port of the most recent (primary) connection */
*param_longp = data->info.conn_primary_port;
break;
case CURLINFO_LOCAL_PORT:
/* Return the local port of the most recent (primary) connection */
*param_longp = data->info.conn_local_port;
break;
case CURLINFO_CONDITION_UNMET:
/* return if the condition prevented the document to get transferred */
*param_longp = data->info.timecond ? 1L : 0L;
break;
case CURLINFO_RTSP_CLIENT_CSEQ:
*param_longp = data->state.rtsp_next_client_CSeq;
break;
case CURLINFO_RTSP_SERVER_CSEQ:
*param_longp = data->state.rtsp_next_server_CSeq;
break;
case CURLINFO_RTSP_CSEQ_RECV:
*param_longp = data->state.rtsp_CSeq_recv;
break;
case CURLINFO_HTTP_VERSION:
switch(data->info.httpversion) {
case 10:
*param_longp = CURL_HTTP_VERSION_1_0;
break;
case 11:
*param_longp = CURL_HTTP_VERSION_1_1;
break;
case 20:
*param_longp = CURL_HTTP_VERSION_2_0;
break;
default:
*param_longp = CURL_HTTP_VERSION_NONE;
break;
}
break;
case CURLINFO_PROTOCOL:
*param_longp = data->info.conn_protocol;
break;
default:
return CURLE_UNKNOWN_OPTION;
}
return CURLE_OK;
}
#define DOUBLE_SECS(x) (double)(x)/1000000
static CURLcode getinfo_offt(struct Curl_easy *data, CURLINFO info,
curl_off_t *param_offt)
{
switch(info) {
case CURLINFO_FILETIME_T:
*param_offt = (curl_off_t)data->info.filetime;
break;
case CURLINFO_SIZE_UPLOAD_T:
*param_offt = data->progress.uploaded;
break;
case CURLINFO_SIZE_DOWNLOAD_T:
*param_offt = data->progress.downloaded;
break;
case CURLINFO_SPEED_DOWNLOAD_T:
*param_offt = data->progress.dlspeed;
break;
case CURLINFO_SPEED_UPLOAD_T:
*param_offt = data->progress.ulspeed;
break;
case CURLINFO_CONTENT_LENGTH_DOWNLOAD_T:
*param_offt = (data->progress.flags & PGRS_DL_SIZE_KNOWN)?
data->progress.size_dl:-1;
break;
case CURLINFO_CONTENT_LENGTH_UPLOAD_T:
*param_offt = (data->progress.flags & PGRS_UL_SIZE_KNOWN)?
data->progress.size_ul:-1;
break;
case CURLINFO_TOTAL_TIME_T:
*param_offt = data->progress.timespent;
break;
case CURLINFO_NAMELOOKUP_TIME_T:
*param_offt = data->progress.t_nslookup;
break;
case CURLINFO_CONNECT_TIME_T:
*param_offt = data->progress.t_connect;
break;
case CURLINFO_APPCONNECT_TIME_T:
*param_offt = data->progress.t_appconnect;
break;
case CURLINFO_PRETRANSFER_TIME_T:
*param_offt = data->progress.t_pretransfer;
break;
case CURLINFO_STARTTRANSFER_TIME_T:
*param_offt = data->progress.t_starttransfer;
break;
case CURLINFO_REDIRECT_TIME_T:
*param_offt = data->progress.t_redirect;
break;
default:
return CURLE_UNKNOWN_OPTION;
}
return CURLE_OK;
}
static CURLcode getinfo_double(struct Curl_easy *data, CURLINFO info,
double *param_doublep)
{
switch(info) {
case CURLINFO_TOTAL_TIME:
*param_doublep = DOUBLE_SECS(data->progress.timespent);
break;
case CURLINFO_NAMELOOKUP_TIME:
*param_doublep = DOUBLE_SECS(data->progress.t_nslookup);
break;
case CURLINFO_CONNECT_TIME:
*param_doublep = DOUBLE_SECS(data->progress.t_connect);
break;
case CURLINFO_APPCONNECT_TIME:
*param_doublep = DOUBLE_SECS(data->progress.t_appconnect);
break;
case CURLINFO_PRETRANSFER_TIME:
*param_doublep = DOUBLE_SECS(data->progress.t_pretransfer);
break;
case CURLINFO_STARTTRANSFER_TIME:
*param_doublep = DOUBLE_SECS(data->progress.t_starttransfer);
break;
case CURLINFO_SIZE_UPLOAD:
*param_doublep = (double)data->progress.uploaded;
break;
case CURLINFO_SIZE_DOWNLOAD:
*param_doublep = (double)data->progress.downloaded;
break;
case CURLINFO_SPEED_DOWNLOAD:
*param_doublep = (double)data->progress.dlspeed;
break;
case CURLINFO_SPEED_UPLOAD:
*param_doublep = (double)data->progress.ulspeed;
break;
case CURLINFO_CONTENT_LENGTH_DOWNLOAD:
*param_doublep = (data->progress.flags & PGRS_DL_SIZE_KNOWN)?
(double)data->progress.size_dl:-1;
break;
case CURLINFO_CONTENT_LENGTH_UPLOAD:
*param_doublep = (data->progress.flags & PGRS_UL_SIZE_KNOWN)?
(double)data->progress.size_ul:-1;
break;
case CURLINFO_REDIRECT_TIME:
*param_doublep = DOUBLE_SECS(data->progress.t_redirect);
break;
default:
return CURLE_UNKNOWN_OPTION;
}
return CURLE_OK;
}
static CURLcode getinfo_slist(struct Curl_easy *data, CURLINFO info,
struct curl_slist **param_slistp)
{
union {
struct curl_certinfo *to_certinfo;
struct curl_slist *to_slist;
} ptr;
switch(info) {
case CURLINFO_SSL_ENGINES:
*param_slistp = Curl_ssl_engines_list(data);
break;
case CURLINFO_COOKIELIST:
*param_slistp = Curl_cookie_list(data);
break;
case CURLINFO_CERTINFO:
/* Return the a pointer to the certinfo struct. Not really an slist
pointer but we can pretend it is here */
ptr.to_certinfo = &data->info.certs;
*param_slistp = ptr.to_slist;
break;
case CURLINFO_TLS_SESSION:
case CURLINFO_TLS_SSL_PTR:
{
struct curl_tlssessioninfo **tsip = (struct curl_tlssessioninfo **)
param_slistp;
struct curl_tlssessioninfo *tsi = &data->tsi;
#ifdef USE_SSL
struct connectdata *conn = data->conn;
#endif
*tsip = tsi;
tsi->backend = Curl_ssl_backend();
tsi->internals = NULL;
#ifdef USE_SSL
if(conn && tsi->backend != CURLSSLBACKEND_NONE) {
unsigned int i;
for(i = 0; i < (sizeof(conn->ssl) / sizeof(conn->ssl[0])); ++i) {
if(conn->ssl[i].use) {
tsi->internals = Curl_ssl->get_internals(&conn->ssl[i], info);
break;
}
}
}
#endif
}
break;
default:
return CURLE_UNKNOWN_OPTION;
}
return CURLE_OK;
}
static CURLcode getinfo_socket(struct Curl_easy *data, CURLINFO info,
curl_socket_t *param_socketp)
{
switch(info) {
case CURLINFO_ACTIVESOCKET:
*param_socketp = Curl_getconnectinfo(data, NULL);
break;
default:
return CURLE_UNKNOWN_OPTION;
}
return CURLE_OK;
}
CURLcode Curl_getinfo(struct Curl_easy *data, CURLINFO info, ...)
{
va_list arg;
long *param_longp = NULL;
double *param_doublep = NULL;
curl_off_t *param_offt = NULL;
const char **param_charp = NULL;
struct curl_slist **param_slistp = NULL;
curl_socket_t *param_socketp = NULL;
int type;
CURLcode result = CURLE_UNKNOWN_OPTION;
if(!data)
return result;
va_start(arg, info);
type = CURLINFO_TYPEMASK & (int)info;
switch(type) {
case CURLINFO_STRING:
param_charp = va_arg(arg, const char **);
if(param_charp)
result = getinfo_char(data, info, param_charp);
break;
case CURLINFO_LONG:
param_longp = va_arg(arg, long *);
if(param_longp)
result = getinfo_long(data, info, param_longp);
break;
case CURLINFO_DOUBLE:
param_doublep = va_arg(arg, double *);
if(param_doublep)
result = getinfo_double(data, info, param_doublep);
break;
case CURLINFO_OFF_T:
param_offt = va_arg(arg, curl_off_t *);
if(param_offt)
result = getinfo_offt(data, info, param_offt);
break;
case CURLINFO_SLIST:
param_slistp = va_arg(arg, struct curl_slist **);
if(param_slistp)
result = getinfo_slist(data, info, param_slistp);
break;
case CURLINFO_SOCKET:
param_socketp = va_arg(arg, curl_socket_t *);
if(param_socketp)
result = getinfo_socket(data, info, param_socketp);
break;
default:
break;
}
va_end(arg);
return result;
}

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#ifndef HEADER_CURL_GETINFO_H
#define HEADER_CURL_GETINFO_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2010, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
CURLcode Curl_getinfo(struct Curl_easy *data, CURLINFO info, ...);
CURLcode Curl_initinfo(struct Curl_easy *data);
#endif /* HEADER_CURL_GETINFO_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_GOPHER
#include "urldata.h"
#include <curl/curl.h>
#include "transfer.h"
#include "sendf.h"
#include "progress.h"
#include "gopher.h"
#include "select.h"
#include "strdup.h"
#include "url.h"
#include "escape.h"
#include "warnless.h"
#include "curl_printf.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Forward declarations.
*/
static CURLcode gopher_do(struct connectdata *conn, bool *done);
/*
* Gopher protocol handler.
* This is also a nice simple template to build off for simple
* connect-command-download protocols.
*/
const struct Curl_handler Curl_handler_gopher = {
"GOPHER", /* scheme */
ZERO_NULL, /* setup_connection */
gopher_do, /* do_it */
ZERO_NULL, /* done */
ZERO_NULL, /* do_more */
ZERO_NULL, /* connect_it */
ZERO_NULL, /* connecting */
ZERO_NULL, /* doing */
ZERO_NULL, /* proto_getsock */
ZERO_NULL, /* doing_getsock */
ZERO_NULL, /* domore_getsock */
ZERO_NULL, /* perform_getsock */
ZERO_NULL, /* disconnect */
ZERO_NULL, /* readwrite */
ZERO_NULL, /* connection_check */
PORT_GOPHER, /* defport */
CURLPROTO_GOPHER, /* protocol */
PROTOPT_NONE /* flags */
};
static CURLcode gopher_do(struct connectdata *conn, bool *done)
{
CURLcode result = CURLE_OK;
struct Curl_easy *data = conn->data;
curl_socket_t sockfd = conn->sock[FIRSTSOCKET];
char *gopherpath;
char *path = data->state.up.path;
char *query = data->state.up.query;
char *sel = NULL;
char *sel_org = NULL;
ssize_t amount, k;
size_t len;
*done = TRUE; /* unconditionally */
/* path is guaranteed non-NULL */
DEBUGASSERT(path);
if(query)
gopherpath = aprintf("%s?%s", path, query);
else
gopherpath = strdup(path);
if(!gopherpath)
return CURLE_OUT_OF_MEMORY;
/* Create selector. Degenerate cases: / and /1 => convert to "" */
if(strlen(gopherpath) <= 2) {
sel = (char *)"";
len = strlen(sel);
free(gopherpath);
}
else {
char *newp;
/* Otherwise, drop / and the first character (i.e., item type) ... */
newp = gopherpath;
newp += 2;
/* ... and finally unescape */
result = Curl_urldecode(data, newp, 0, &sel, &len, FALSE);
free(gopherpath);
if(result)
return result;
sel_org = sel;
}
/* We use Curl_write instead of Curl_sendf to make sure the entire buffer is
sent, which could be sizeable with long selectors. */
k = curlx_uztosz(len);
for(;;) {
result = Curl_write(conn, sockfd, sel, k, &amount);
if(!result) { /* Which may not have written it all! */
result = Curl_client_write(conn, CLIENTWRITE_HEADER, sel, amount);
if(result)
break;
k -= amount;
sel += amount;
if(k < 1)
break; /* but it did write it all */
}
else
break;
/* Don't busyloop. The entire loop thing is a work-around as it causes a
BLOCKING behavior which is a NO-NO. This function should rather be
split up in a do and a doing piece where the pieces that aren't
possible to send now will be sent in the doing function repeatedly
until the entire request is sent.
Wait a while for the socket to be writable. Note that this doesn't
acknowledge the timeout.
*/
if(SOCKET_WRITABLE(sockfd, 100) < 0) {
result = CURLE_SEND_ERROR;
break;
}
}
free(sel_org);
if(!result)
/* We can use Curl_sendf to send the terminal \r\n relatively safely and
save allocing another string/doing another _write loop. */
result = Curl_sendf(sockfd, conn, "\r\n");
if(result) {
failf(data, "Failed sending Gopher request");
return result;
}
result = Curl_client_write(conn, CLIENTWRITE_HEADER, (char *)"\r\n", 2);
if(result)
return result;
Curl_setup_transfer(data, FIRSTSOCKET, -1, FALSE, -1);
return CURLE_OK;
}
#endif /*CURL_DISABLE_GOPHER*/

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#ifndef HEADER_CURL_GOPHER_H
#define HEADER_CURL_GOPHER_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2009, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifndef CURL_DISABLE_GOPHER
extern const struct Curl_handler Curl_handler_gopher;
#endif
#endif /* HEADER_CURL_GOPHER_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <curl/curl.h>
#include "hash.h"
#include "llist.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
static void
hash_element_dtor(void *user, void *element)
{
struct curl_hash *h = (struct curl_hash *) user;
struct curl_hash_element *e = (struct curl_hash_element *) element;
if(e->ptr) {
h->dtor(e->ptr);
e->ptr = NULL;
}
e->key_len = 0;
free(e);
}
/* Initializes a hash structure.
* Return 1 on error, 0 is fine.
*
* @unittest: 1602
* @unittest: 1603
*/
int
Curl_hash_init(struct curl_hash *h,
int slots,
hash_function hfunc,
comp_function comparator,
curl_hash_dtor dtor)
{
if(!slots || !hfunc || !comparator ||!dtor) {
return 1; /* failure */
}
h->hash_func = hfunc;
h->comp_func = comparator;
h->dtor = dtor;
h->size = 0;
h->slots = slots;
h->table = malloc(slots * sizeof(struct curl_llist));
if(h->table) {
int i;
for(i = 0; i < slots; ++i)
Curl_llist_init(&h->table[i], (curl_llist_dtor) hash_element_dtor);
return 0; /* fine */
}
h->slots = 0;
return 1; /* failure */
}
static struct curl_hash_element *
mk_hash_element(const void *key, size_t key_len, const void *p)
{
/* allocate the struct plus memory after it to store the key */
struct curl_hash_element *he = malloc(sizeof(struct curl_hash_element) +
key_len);
if(he) {
/* copy the key */
memcpy(he->key, key, key_len);
he->key_len = key_len;
he->ptr = (void *) p;
}
return he;
}
#define FETCH_LIST(x,y,z) &x->table[x->hash_func(y, z, x->slots)]
/* Insert the data in the hash. If there already was a match in the hash,
* that data is replaced.
*
* @unittest: 1305
* @unittest: 1602
* @unittest: 1603
*/
void *
Curl_hash_add(struct curl_hash *h, void *key, size_t key_len, void *p)
{
struct curl_hash_element *he;
struct curl_llist_element *le;
struct curl_llist *l = FETCH_LIST(h, key, key_len);
for(le = l->head; le; le = le->next) {
he = (struct curl_hash_element *) le->ptr;
if(h->comp_func(he->key, he->key_len, key, key_len)) {
Curl_llist_remove(l, le, (void *)h);
--h->size;
break;
}
}
he = mk_hash_element(key, key_len, p);
if(he) {
Curl_llist_insert_next(l, l->tail, he, &he->list);
++h->size;
return p; /* return the new entry */
}
return NULL; /* failure */
}
/* Remove the identified hash entry.
* Returns non-zero on failure.
*
* @unittest: 1603
*/
int Curl_hash_delete(struct curl_hash *h, void *key, size_t key_len)
{
struct curl_llist_element *le;
struct curl_llist *l = FETCH_LIST(h, key, key_len);
for(le = l->head; le; le = le->next) {
struct curl_hash_element *he = le->ptr;
if(h->comp_func(he->key, he->key_len, key, key_len)) {
Curl_llist_remove(l, le, (void *) h);
--h->size;
return 0;
}
}
return 1;
}
/* Retrieves a hash element.
*
* @unittest: 1603
*/
void *
Curl_hash_pick(struct curl_hash *h, void *key, size_t key_len)
{
struct curl_llist_element *le;
struct curl_llist *l;
if(h) {
l = FETCH_LIST(h, key, key_len);
for(le = l->head; le; le = le->next) {
struct curl_hash_element *he = le->ptr;
if(h->comp_func(he->key, he->key_len, key, key_len)) {
return he->ptr;
}
}
}
return NULL;
}
#if defined(DEBUGBUILD) && defined(AGGRESIVE_TEST)
void
Curl_hash_apply(curl_hash *h, void *user,
void (*cb)(void *user, void *ptr))
{
struct curl_llist_element *le;
int i;
for(i = 0; i < h->slots; ++i) {
for(le = (h->table[i])->head;
le;
le = le->next) {
curl_hash_element *el = le->ptr;
cb(user, el->ptr);
}
}
}
#endif
/* Destroys all the entries in the given hash and resets its attributes,
* prepping the given hash for [static|dynamic] deallocation.
*
* @unittest: 1305
* @unittest: 1602
* @unittest: 1603
*/
void
Curl_hash_destroy(struct curl_hash *h)
{
int i;
for(i = 0; i < h->slots; ++i) {
Curl_llist_destroy(&h->table[i], (void *) h);
}
Curl_safefree(h->table);
h->size = 0;
h->slots = 0;
}
/* Removes all the entries in the given hash.
*
* @unittest: 1602
*/
void
Curl_hash_clean(struct curl_hash *h)
{
Curl_hash_clean_with_criterium(h, NULL, NULL);
}
/* Cleans all entries that pass the comp function criteria. */
void
Curl_hash_clean_with_criterium(struct curl_hash *h, void *user,
int (*comp)(void *, void *))
{
struct curl_llist_element *le;
struct curl_llist_element *lnext;
struct curl_llist *list;
int i;
if(!h)
return;
for(i = 0; i < h->slots; ++i) {
list = &h->table[i];
le = list->head; /* get first list entry */
while(le) {
struct curl_hash_element *he = le->ptr;
lnext = le->next;
/* ask the callback function if we shall remove this entry or not */
if(comp == NULL || comp(user, he->ptr)) {
Curl_llist_remove(list, le, (void *) h);
--h->size; /* one less entry in the hash now */
}
le = lnext;
}
}
}
size_t Curl_hash_str(void *key, size_t key_length, size_t slots_num)
{
const char *key_str = (const char *) key;
const char *end = key_str + key_length;
size_t h = 5381;
while(key_str < end) {
h += h << 5;
h ^= *key_str++;
}
return (h % slots_num);
}
size_t Curl_str_key_compare(void *k1, size_t key1_len,
void *k2, size_t key2_len)
{
if((key1_len == key2_len) && !memcmp(k1, k2, key1_len))
return 1;
return 0;
}
void Curl_hash_start_iterate(struct curl_hash *hash,
struct curl_hash_iterator *iter)
{
iter->hash = hash;
iter->slot_index = 0;
iter->current_element = NULL;
}
struct curl_hash_element *
Curl_hash_next_element(struct curl_hash_iterator *iter)
{
struct curl_hash *h = iter->hash;
/* Get the next element in the current list, if any */
if(iter->current_element)
iter->current_element = iter->current_element->next;
/* If we have reached the end of the list, find the next one */
if(!iter->current_element) {
int i;
for(i = iter->slot_index; i < h->slots; i++) {
if(h->table[i].head) {
iter->current_element = h->table[i].head;
iter->slot_index = i + 1;
break;
}
}
}
if(iter->current_element) {
struct curl_hash_element *he = iter->current_element->ptr;
return he;
}
iter->current_element = NULL;
return NULL;
}
#if 0 /* useful function for debugging hashes and their contents */
void Curl_hash_print(struct curl_hash *h,
void (*func)(void *))
{
struct curl_hash_iterator iter;
struct curl_hash_element *he;
int last_index = -1;
if(!h)
return;
fprintf(stderr, "=Hash dump=\n");
Curl_hash_start_iterate(h, &iter);
he = Curl_hash_next_element(&iter);
while(he) {
if(iter.slot_index != last_index) {
fprintf(stderr, "index %d:", iter.slot_index);
if(last_index >= 0) {
fprintf(stderr, "\n");
}
last_index = iter.slot_index;
}
if(func)
func(he->ptr);
else
fprintf(stderr, " [%p]", (void *)he->ptr);
he = Curl_hash_next_element(&iter);
}
fprintf(stderr, "\n");
}
#endif

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#ifndef HEADER_CURL_HASH_H
#define HEADER_CURL_HASH_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#include <stddef.h>
#include "llist.h"
/* Hash function prototype */
typedef size_t (*hash_function) (void *key,
size_t key_length,
size_t slots_num);
/*
Comparator function prototype. Compares two keys.
*/
typedef size_t (*comp_function) (void *key1,
size_t key1_len,
void *key2,
size_t key2_len);
typedef void (*curl_hash_dtor)(void *);
struct curl_hash {
struct curl_llist *table;
/* Hash function to be used for this hash table */
hash_function hash_func;
/* Comparator function to compare keys */
comp_function comp_func;
curl_hash_dtor dtor;
int slots;
size_t size;
};
struct curl_hash_element {
struct curl_llist_element list;
void *ptr;
size_t key_len;
char key[1]; /* allocated memory following the struct */
};
struct curl_hash_iterator {
struct curl_hash *hash;
int slot_index;
struct curl_llist_element *current_element;
};
int Curl_hash_init(struct curl_hash *h,
int slots,
hash_function hfunc,
comp_function comparator,
curl_hash_dtor dtor);
void *Curl_hash_add(struct curl_hash *h, void *key, size_t key_len, void *p);
int Curl_hash_delete(struct curl_hash *h, void *key, size_t key_len);
void *Curl_hash_pick(struct curl_hash *, void *key, size_t key_len);
void Curl_hash_apply(struct curl_hash *h, void *user,
void (*cb)(void *user, void *ptr));
int Curl_hash_count(struct curl_hash *h);
void Curl_hash_destroy(struct curl_hash *h);
void Curl_hash_clean(struct curl_hash *h);
void Curl_hash_clean_with_criterium(struct curl_hash *h, void *user,
int (*comp)(void *, void *));
size_t Curl_hash_str(void *key, size_t key_length, size_t slots_num);
size_t Curl_str_key_compare(void *k1, size_t key1_len, void *k2,
size_t key2_len);
void Curl_hash_start_iterate(struct curl_hash *hash,
struct curl_hash_iterator *iter);
struct curl_hash_element *
Curl_hash_next_element(struct curl_hash_iterator *iter);
void Curl_hash_print(struct curl_hash *h,
void (*func)(void *));
#endif /* HEADER_CURL_HASH_H */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* RFC2104 Keyed-Hashing for Message Authentication
*
***************************************************************************/
#include "curl_setup.h"
#ifndef CURL_DISABLE_CRYPTO_AUTH
#include <curl/curl.h>
#include "curl_hmac.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Generic HMAC algorithm.
*
* This module computes HMAC digests based on any hash function. Parameters
* and computing procedures are set-up dynamically at HMAC computation
* context initialisation.
*/
static const unsigned char hmac_ipad = 0x36;
static const unsigned char hmac_opad = 0x5C;
HMAC_context *
Curl_HMAC_init(const HMAC_params * hashparams,
const unsigned char *key,
unsigned int keylen)
{
size_t i;
HMAC_context *ctxt;
unsigned char *hkey;
unsigned char b;
/* Create HMAC context. */
i = sizeof(*ctxt) + 2 * hashparams->hmac_ctxtsize +
hashparams->hmac_resultlen;
ctxt = malloc(i);
if(!ctxt)
return ctxt;
ctxt->hmac_hash = hashparams;
ctxt->hmac_hashctxt1 = (void *) (ctxt + 1);
ctxt->hmac_hashctxt2 = (void *) ((char *) ctxt->hmac_hashctxt1 +
hashparams->hmac_ctxtsize);
/* If the key is too long, replace it by its hash digest. */
if(keylen > hashparams->hmac_maxkeylen) {
(*hashparams->hmac_hinit)(ctxt->hmac_hashctxt1);
(*hashparams->hmac_hupdate)(ctxt->hmac_hashctxt1, key, keylen);
hkey = (unsigned char *) ctxt->hmac_hashctxt2 + hashparams->hmac_ctxtsize;
(*hashparams->hmac_hfinal)(hkey, ctxt->hmac_hashctxt1);
key = hkey;
keylen = hashparams->hmac_resultlen;
}
/* Prime the two hash contexts with the modified key. */
(*hashparams->hmac_hinit)(ctxt->hmac_hashctxt1);
(*hashparams->hmac_hinit)(ctxt->hmac_hashctxt2);
for(i = 0; i < keylen; i++) {
b = (unsigned char)(*key ^ hmac_ipad);
(*hashparams->hmac_hupdate)(ctxt->hmac_hashctxt1, &b, 1);
b = (unsigned char)(*key++ ^ hmac_opad);
(*hashparams->hmac_hupdate)(ctxt->hmac_hashctxt2, &b, 1);
}
for(; i < hashparams->hmac_maxkeylen; i++) {
(*hashparams->hmac_hupdate)(ctxt->hmac_hashctxt1, &hmac_ipad, 1);
(*hashparams->hmac_hupdate)(ctxt->hmac_hashctxt2, &hmac_opad, 1);
}
/* Done, return pointer to HMAC context. */
return ctxt;
}
int Curl_HMAC_update(HMAC_context * ctxt,
const unsigned char *data,
unsigned int len)
{
/* Update first hash calculation. */
(*ctxt->hmac_hash->hmac_hupdate)(ctxt->hmac_hashctxt1, data, len);
return 0;
}
int Curl_HMAC_final(HMAC_context *ctxt, unsigned char *result)
{
const HMAC_params * hashparams = ctxt->hmac_hash;
/* Do not get result if called with a null parameter: only release
storage. */
if(!result)
result = (unsigned char *) ctxt->hmac_hashctxt2 +
ctxt->hmac_hash->hmac_ctxtsize;
(*hashparams->hmac_hfinal)(result, ctxt->hmac_hashctxt1);
(*hashparams->hmac_hupdate)(ctxt->hmac_hashctxt2,
result, hashparams->hmac_resultlen);
(*hashparams->hmac_hfinal)(result, ctxt->hmac_hashctxt2);
free((char *) ctxt);
return 0;
}
#endif /* CURL_DISABLE_CRYPTO_AUTH */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2019, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
/***********************************************************************
* Only for builds using asynchronous name resolves
**********************************************************************/
#ifdef CURLRES_ASYNCH
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef __VMS
#include <in.h>
#include <inet.h>
#endif
#ifdef HAVE_PROCESS_H
#include <process.h>
#endif
#include "urldata.h"
#include "sendf.h"
#include "hostip.h"
#include "hash.h"
#include "share.h"
#include "strerror.h"
#include "url.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Curl_addrinfo_callback() gets called by ares, gethostbyname_thread()
* or getaddrinfo_thread() when we got the name resolved (or not!).
*
* If the status argument is CURL_ASYNC_SUCCESS, this function takes
* ownership of the Curl_addrinfo passed, storing the resolved data
* in the DNS cache.
*
* The storage operation locks and unlocks the DNS cache.
*/
CURLcode Curl_addrinfo_callback(struct connectdata *conn,
int status,
struct Curl_addrinfo *ai)
{
struct Curl_dns_entry *dns = NULL;
CURLcode result = CURLE_OK;
conn->async.status = status;
if(CURL_ASYNC_SUCCESS == status) {
if(ai) {
struct Curl_easy *data = conn->data;
if(data->share)
Curl_share_lock(data, CURL_LOCK_DATA_DNS, CURL_LOCK_ACCESS_SINGLE);
dns = Curl_cache_addr(data, ai,
conn->async.hostname,
conn->async.port);
if(data->share)
Curl_share_unlock(data, CURL_LOCK_DATA_DNS);
if(!dns) {
/* failed to store, cleanup and return error */
Curl_freeaddrinfo(ai);
result = CURLE_OUT_OF_MEMORY;
}
}
else {
result = CURLE_OUT_OF_MEMORY;
}
}
conn->async.dns = dns;
/* Set async.done TRUE last in this function since it may be used multi-
threaded and once this is TRUE the other thread may read fields from the
async struct */
conn->async.done = TRUE;
/* IPv4: The input hostent struct will be freed by ares when we return from
this function */
return result;
}
/*
* Curl_getaddrinfo() is the generic low-level name resolve API within this
* source file. There are several versions of this function - for different
* name resolve layers (selected at build-time). They all take this same set
* of arguments
*/
Curl_addrinfo *Curl_getaddrinfo(struct connectdata *conn,
const char *hostname,
int port,
int *waitp)
{
return Curl_resolver_getaddrinfo(conn, hostname, port, waitp);
}
#endif /* CURLRES_ASYNCH */

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/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "curl_setup.h"
#if defined(USE_OPENSSL) \
|| defined(USE_GSKIT) \
|| defined(USE_SCHANNEL)
/* these backends use functions from this file */
#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#ifdef HAVE_NETINET_IN6_H
#include <netinet/in6.h>
#endif
#include "hostcheck.h"
#include "strcase.h"
#include "inet_pton.h"
#include "curl_memory.h"
/* The last #include file should be: */
#include "memdebug.h"
/*
* Match a hostname against a wildcard pattern.
* E.g.
* "foo.host.com" matches "*.host.com".
*
* We use the matching rule described in RFC6125, section 6.4.3.
* https://tools.ietf.org/html/rfc6125#section-6.4.3
*
* In addition: ignore trailing dots in the host names and wildcards, so that
* the names are used normalized. This is what the browsers do.
*
* Do not allow wildcard matching on IP numbers. There are apparently
* certificates being used with an IP address in the CN field, thus making no
* apparent distinction between a name and an IP. We need to detect the use of
* an IP address and not wildcard match on such names.
*
* NOTE: hostmatch() gets called with copied buffers so that it can modify the
* contents at will.
*/
static int hostmatch(char *hostname, char *pattern)
{
const char *pattern_label_end, *pattern_wildcard, *hostname_label_end;
int wildcard_enabled;
size_t prefixlen, suffixlen;
struct in_addr ignored;
#ifdef ENABLE_IPV6
struct sockaddr_in6 si6;
#endif
/* normalize pattern and hostname by stripping off trailing dots */
size_t len = strlen(hostname);
if(hostname[len-1]=='.')
hostname[len-1] = 0;
len = strlen(pattern);
if(pattern[len-1]=='.')
pattern[len-1] = 0;
pattern_wildcard = strchr(pattern, '*');
if(pattern_wildcard == NULL)
return strcasecompare(pattern, hostname) ?
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
/* detect IP address as hostname and fail the match if so */
if(Curl_inet_pton(AF_INET, hostname, &ignored) > 0)
return CURL_HOST_NOMATCH;
#ifdef ENABLE_IPV6
if(Curl_inet_pton(AF_INET6, hostname, &si6.sin6_addr) > 0)
return CURL_HOST_NOMATCH;
#endif
/* We require at least 2 dots in pattern to avoid too wide wildcard
match. */
wildcard_enabled = 1;
pattern_label_end = strchr(pattern, '.');
if(pattern_label_end == NULL || strchr(pattern_label_end + 1, '.') == NULL ||
pattern_wildcard > pattern_label_end ||
strncasecompare(pattern, "xn--", 4)) {
wildcard_enabled = 0;
}
if(!wildcard_enabled)
return strcasecompare(pattern, hostname) ?
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
hostname_label_end = strchr(hostname, '.');
if(hostname_label_end == NULL ||
!strcasecompare(pattern_label_end, hostname_label_end))
return CURL_HOST_NOMATCH;
/* The wildcard must match at least one character, so the left-most
label of the hostname is at least as large as the left-most label
of the pattern. */
if(hostname_label_end - hostname < pattern_label_end - pattern)
return CURL_HOST_NOMATCH;
prefixlen = pattern_wildcard - pattern;
suffixlen = pattern_label_end - (pattern_wildcard + 1);
return strncasecompare(pattern, hostname, prefixlen) &&
strncasecompare(pattern_wildcard + 1, hostname_label_end - suffixlen,
suffixlen) ?
CURL_HOST_MATCH : CURL_HOST_NOMATCH;
}
int Curl_cert_hostcheck(const char *match_pattern, const char *hostname)
{
int res = 0;
if(!match_pattern || !*match_pattern ||
!hostname || !*hostname) /* sanity check */
;
else {
char *matchp = strdup(match_pattern);
if(matchp) {
char *hostp = strdup(hostname);
if(hostp) {
if(hostmatch(hostp, matchp) == CURL_HOST_MATCH)
res = 1;
free(hostp);
}
free(matchp);
}
}
return res;
}
#endif /* OPENSSL, GSKIT or schannel+wince */

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#ifndef HEADER_CURL_HOSTCHECK_H
#define HEADER_CURL_HOSTCHECK_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include <curl/curl.h>
#define CURL_HOST_NOMATCH 0
#define CURL_HOST_MATCH 1
int Curl_cert_hostcheck(const char *match_pattern, const char *hostname);
#endif /* HEADER_CURL_HOSTCHECK_H */

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