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<p>ARCHIVE_ENTRY_PERMS(3) BSD Library Functions Manual
ARCHIVE_ENTRY_PERMS(3)</p>
<p style="margin-top: 1em"><b>NAME</b></p>
<p style="margin-left:6%;"><b>archive_entry_gid</b>,
<b>archive_entry_set_gid</b>, <b>archive_entry_uid</b>,
<b>archive_entry_set_uid</b>, <b>archive_entry_perm</b>,
<b>archive_entry_set_perm</b>, <b>archive_entry_strmode</b>,
<b>archive_entry_uname</b>, <b>archive_entry_uname_w</b>,
<b>archive_entry_set_uname</b>,
<b>archive_entry_copy_uname</b>,
<b>archive_entry_copy_uname_w</b>,
<b>archive_entry_update_uname_utf8</b>,
<b>archive_entry_gname</b>, <b>archive_entry_gname_w</b>,
<b>archive_entry_set_gname</b>,
<b>archive_entry_copy_gname</b>,
<b>archive_entry_copy_gname_w</b>,
<b>archive_entry_update_gname_utf8</b>,
<b>archive_entry_fflags</b>,
<b>archive_entry_fflags_text</b>,
<b>archive_entry_set_fflags</b>,
<b>archive_entry_copy_fflags_text</b>,
<b>archive_entry_copy_fflags_text_w</b> &mdash; functions
for manipulating ownership and permissions in archive entry
descriptions</p>
<p style="margin-top: 1em"><b>LIBRARY</b></p>
<p style="margin-left:6%;">Streaming Archive Library
(libarchive, -larchive)</p>
<p style="margin-top: 1em"><b>SYNOPSIS</b></p>
<p style="margin-left:6%;"><b>#include
&lt;archive_entry.h&gt;</b></p>
<p style="margin-left:6%; margin-top: 1em"><i>gid_t</i></p>
<p style="margin-left:12%;"><b>archive_entry_gid</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_set_gid</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>gid_t&nbsp;gid</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>uid_t</i></p>
<p style="margin-left:12%;"><b>archive_entry_uid</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_set_uid</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>uid_t&nbsp;uid</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>mode_t</i></p>
<p style="margin-left:12%;"><b>archive_entry_perm</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_set_perm</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>mode_t&nbsp;mode</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const char
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_strmode</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const char
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_gname</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const wchar_t
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_gname_w</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_set_gname</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;char&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_copy_gname</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;char&nbsp;*name</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_copy_gname_w</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;wchar_t&nbsp;*name</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>int</i></p>
<p style="margin-left:12%;"><b>archive_entry_update_gname_utf8</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;char&nbsp;*name</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const char
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_uname</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const wchar_t
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_uname_w</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_set_uname</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;char&nbsp;*name</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_copy_uname</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;char&nbsp;*name</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p style="margin-left:12%;"><b>archive_entry_copy_uname_w</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;wchar_t&nbsp;*name</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>int</i></p>
<p style="margin-left:12%;"><b>archive_entry_update_uname_utf8</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;char&nbsp;*name</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p><b>archive_entry_fflags</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>unsigned&nbsp;long&nbsp;*set_bits</i>,
<i>unsigned&nbsp;long&nbsp;*clear_bits</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const char
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_fflags_text</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>void</i></p>
<p><b>archive_entry_set_fflags</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>unsigned&nbsp;long&nbsp;set_bits</i>,
<i>unsigned&nbsp;long&nbsp;clear_bits</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const char
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_copy_fflags_text</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;char&nbsp;*text</i>);</p>
<p style="margin-left:6%; margin-top: 1em"><i>const wchar_t
*</i></p>
<p style="margin-left:12%;"><b>archive_entry_copy_fflags_text_w</b>(<i>struct&nbsp;archive_entry&nbsp;*a</i>,
<i>const&nbsp;wchar_t&nbsp;*text</i>);</p>
<p style="margin-top: 1em"><b>DESCRIPTION</b></p>
<p style="margin-left:6%;"><b>User id, group id and
mode</b> <br>
The functions <b>archive_entry_uid</b>(),
<b>archive_entry_gid</b>(), and <b>archive_entry_perm</b>()
can be used to extract the user id, group id and permission
from the given entry. The corresponding functions
<b>archive_entry_set_uid</b>(),
<b>archive_entry_set_gid</b>(), and
<b>archive_entry_set_perm</b>() store the given user id,
group id and permission in the entry. The permission is also
set as a side effect of calling
<b>archive_entry_set_mode</b>().</p>
<p style="margin-left:6%; margin-top: 1em"><b>archive_entry_strmode</b>()
returns a string representation of the permission as used by
the long mode of ls(1).</p>
<p style="margin-left:6%; margin-top: 1em"><b>User and
group name</b> <br>
User and group names can be provided in one of three
different ways:</p>
<p style="margin-top: 1em">char *</p>
<p style="margin-left:21%; margin-top: 1em">Multibyte
strings in the current locale.</p>
<p style="margin-top: 1em">wchar_t *</p>
<p style="margin-left:21%; margin-top: 1em">Wide character
strings in the current locale. The accessor functions are
named <b>XXX_w</b>().</p>
<p style="margin-top: 1em">UTF-8</p>
<p style="margin-left:21%; margin-top: 1em">Unicode strings
encoded as UTF-8. These are convenience functions to update
both the multibyte and wide character strings at the same
time.</p>
<p style="margin-left:6%; margin-top: 1em"><b>archive_entry_set_XXX</b>()
is an alias for <b>archive_entry_copy_XXX</b>().</p>
<p style="margin-left:6%; margin-top: 1em"><b>File
Flags</b> <br>
File flags are transparently converted between a bitmap
representation and a textual format. For example, if you set
the bitmap and ask for text, the library will build a
canonical text format. However, if you set a text format and
request a text format, you will get back the same text, even
if it is ill-formed. If you need to canonicalize a textual
flags string, you should first set the text form, then
request the bitmap form, then use that to set the bitmap
form. Setting the bitmap format will clear the internal text
representation and force it to be reconstructed when you
next request the text form.</p>
<p style="margin-left:6%; margin-top: 1em">The bitmap
format consists of two integers, one containing bits that
should be set, the other specifying bits that should be
cleared. Bits not mentioned in either bitmap will be
ignored. Usually, the bitmap of bits to be cleared will be
set to zero. In unusual circumstances, you can force a
fully-specified set of file flags by setting the bitmap of
flags to clear to the complement of the bitmap of flags to
set. (This differs from fflagstostr(3), which only includes
names for set bits.) Converting a bitmap to a textual string
is a platform-specific operation; bits that are not
meaningful on the current platform will be ignored.</p>
<p style="margin-left:6%; margin-top: 1em">The canonical
text format is a comma-separated list of flag names. The
<b>archive_entry_copy_fflags_text</b>() and
<b>archive_entry_copy_fflags_text_w</b>() functions parse
the provided text and set the internal bitmap values. This
is a platform-specific operation; names that are not
meaningful on the current platform will be ignored. The
function returns a pointer to the start of the first name
that was not recognized, or NULL if every name was
recognized. Note that every name &mdash; including names
that follow an unrecognized name &mdash; will be evaluated,
and the bitmaps will be set to reflect every name that is
recognized. (In particular, this differs from
strtofflags(3), which stops parsing at the first
unrecognized name.)</p>
<p style="margin-top: 1em"><b>SEE ALSO</b></p>
<p style="margin-left:6%;">archive_entry(3),
archive_entry_acl(3), archive_read_disk(3),
archive_write_disk(3), libarchive(3)</p>
<p style="margin-top: 1em"><b>BUGS</b></p>
<p style="margin-left:6%;">The platform types <i>uid_t</i>
and <i>gid_t</i> are often 16 or 32 bit wide. In this case
it is possible that the ids can not be correctly restored
from archives and get truncated.</p>
<p style="margin-left:6%; margin-top: 1em">BSD
February&nbsp;2, 2012 BSD</p>
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