Bump bundled libarchive version to 3.5.2

- Update bunlded libarchive version used on Windows/Mac
- Enable requested zstd support while we are at it. Closes #211

dependencies/libarchive-3.5.2/libarchive/archive_cmdline.c

@@ -0,0 +1,227 @@
+/*-
+ * Copyright (c) 2012 Michihiro NAKAJIMA 
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "archive_platform.h"
+
+__FBSDID("$FreeBSD$");
+
+#ifdef HAVE_STRING_H
+#  include <string.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+#endif
+
+#include "archive.h"
+#include "archive_cmdline_private.h"
+#include "archive_string.h"
+
+static int cmdline_set_path(struct archive_cmdline *, const char *);
+static int cmdline_add_arg(struct archive_cmdline *, const char *);
+
+static ssize_t
+extract_quotation(struct archive_string *as, const char *p)
+{
+	const char *s;
+
+	for (s = p + 1; *s;) {
+		if (*s == '\\') {
+			if (s[1] != '\0') {
+				archive_strappend_char(as, s[1]);
+				s += 2;
+			} else
+				s++;
+		} else if (*s == '"')
+			break;
+		else {
+			archive_strappend_char(as, s[0]);
+			s++;
+		}
+	}
+	if (*s != '"')
+		return (ARCHIVE_FAILED);/* Invalid sequence. */
+	return ((ssize_t)(s + 1 - p));
+}
+
+static ssize_t
+get_argument(struct archive_string *as, const char *p)
+{
+	const char *s = p;
+
+	archive_string_empty(as);
+
+	/* Skip beginning space characters. */
+	while (*s != '\0' && *s == ' ')
+		s++;
+	/* Copy non-space characters. */
+	while (*s != '\0' && *s != ' ') {
+		if (*s == '\\') {
+			if (s[1] != '\0') {
+				archive_strappend_char(as, s[1]);
+				s += 2;
+			} else {
+				s++;/* Ignore this character.*/
+				break;
+			}
+		} else if (*s == '"') {
+			ssize_t q = extract_quotation(as, s);
+			if (q < 0)
+				return (ARCHIVE_FAILED);/* Invalid sequence. */
+			s += q;
+		} else {
+			archive_strappend_char(as, s[0]);
+			s++;
+		}
+	}
+	return ((ssize_t)(s - p));
+}
+
+/*
+ * Set up command line arguments.
+ * Returns ARCHIVE_OK if everything okey.
+ * Returns ARCHIVE_FAILED if there is a lack of the `"' terminator or an
+ * empty command line.
+ * Returns ARCHIVE_FATAL if no memory.
+ */
+int
+__archive_cmdline_parse(struct archive_cmdline *data, const char *cmd)
+{
+	struct archive_string as;
+	const char *p;
+	ssize_t al;
+	int r;
+
+	archive_string_init(&as);
+
+	/* Get first argument as a command path. */
+	al = get_argument(&as, cmd);
+	if (al < 0) {
+		r = ARCHIVE_FAILED;/* Invalid sequence. */
+		goto exit_function;
+	}
+	if (archive_strlen(&as) == 0) {
+		r = ARCHIVE_FAILED;/* An empty command path. */
+		goto exit_function;
+	}
+	r = cmdline_set_path(data, as.s);
+	if (r != ARCHIVE_OK)
+		goto exit_function;
+	p = strrchr(as.s, '/');
+	if (p == NULL)
+		p = as.s;
+	else
+		p++;
+	r = cmdline_add_arg(data, p);
+	if (r != ARCHIVE_OK)
+		goto exit_function;
+	cmd += al;
+
+	for (;;) {
+		al = get_argument(&as, cmd);
+		if (al < 0) {
+			r = ARCHIVE_FAILED;/* Invalid sequence. */
+			goto exit_function;
+		}
+		if (al == 0)
+			break;
+		cmd += al;
+		if (archive_strlen(&as) == 0 && *cmd == '\0')
+			break;
+		r = cmdline_add_arg(data, as.s);
+		if (r != ARCHIVE_OK)
+			goto exit_function;
+	}
+	r = ARCHIVE_OK;
+exit_function:
+	archive_string_free(&as);
+	return (r);
+}
+
+/*
+ * Set the program path.
+ */
+static int
+cmdline_set_path(struct archive_cmdline *data, const char *path)
+{
+	char *newptr;
+
+	newptr = realloc(data->path, strlen(path) + 1);
+	if (newptr == NULL)
+		return (ARCHIVE_FATAL);
+	data->path = newptr;
+	strcpy(data->path, path);
+	return (ARCHIVE_OK);
+}
+
+/*
+ * Add a argument for the program.
+ */
+static int
+cmdline_add_arg(struct archive_cmdline *data, const char *arg)
+{
+	char **newargv;
+
+	if (data->path == NULL)
+		return (ARCHIVE_FAILED);
+
+	newargv = realloc(data->argv, (data->argc + 2) * sizeof(char *));
+	if (newargv == NULL)
+		return (ARCHIVE_FATAL);
+	data->argv = newargv;
+	data->argv[data->argc] = strdup(arg);
+	if (data->argv[data->argc] == NULL)
+		return (ARCHIVE_FATAL);
+	/* Set the terminator of argv. */
+	data->argv[++data->argc] = NULL;
+	return (ARCHIVE_OK);
+}
+
+struct archive_cmdline *
+__archive_cmdline_allocate(void)
+{
+	return (struct archive_cmdline *)
+		calloc(1, sizeof(struct archive_cmdline));
+}
+
+/*
+ * Release the resources.
+ */
+int
+__archive_cmdline_free(struct archive_cmdline *data)
+{
+
+	if (data) {
+		free(data->path);
+		if (data->argv != NULL) {
+			int i;
+			for (i = 0; data->argv[i] != NULL; i++)
+				free(data->argv[i]);
+			free(data->argv);
+		}
+		free(data);
+	}
+	return (ARCHIVE_OK);
+}
+