219 lines
7.1 KiB
Groff
219 lines
7.1 KiB
Groff
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.\" Copyright (c) 2003-2004 Tim Kientzle
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 15, 2003
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.Dt archive_entry 3
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.Os
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.Sh NAME
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.Nm archive_entry_clear
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.Nm archive_entry_clone
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.Nm archive_entry_copy_stat
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.Nm archive_entry_dup
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.Nm archive_entry_free
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.Nm archive_entry_gname
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.Nm archive_entry_hardlink
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.Nm archive_entry_new
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.Nm archive_entry_pathname
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.Nm archive_entry_set_devmajor
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.Nm archive_entry_set_devminor
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.Nm archive_entry_set_gid
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.Nm archive_entry_set_gname
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.Nm archive_entry_set_hardlink
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.Nm archive_entry_set_mode
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.Nm archive_entry_set_pathname
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.Nm archive_entry_set_symlink
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.Nm archive_entry_set_tartype
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.Nm archive_entry_set_uid
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.Nm archive_entry_set_uname
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.Nm archive_entry_size
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.Nm archive_entry_stat
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.Nm archive_entry_symlink
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.Nm archive_entry_tartype
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.Nm archive_entry_uname
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.Nd functions for manipulating archive entry descriptions
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.Sh SYNOPSIS
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.In archive_entry.h
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.Ft void
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.Fn archive_entry_clear "struct archive_entry *"
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.Ft struct archive_entry *
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.Fn archive_entry_clone "struct archive_entry *"
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.Ft void
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.Fn archive_entry_copy_stat "struct archive_entry *" "struct stat *"
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.Ft struct archive_entry *
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.Fn archive_entry_dup "struct archive_entry *"
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.Ft void
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.Fn archive_entry_free "struct archive_entry *"
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.Ft const char *
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.Fn archive_entry_gname "struct archive_entry *"
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.Ft const char *
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.Fn archive_entry_hardlink "struct archive_entry *"
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.Ft struct archive_entry *
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.Fn archive_entry_new "void"
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.Ft const char *
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.Fn archive_entry_pathname "struct archive_entry *"
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.Ft void
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.Fn archive_entry_set_devmajor "struct archive_entry *" "dev_t"
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.Ft void
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.Fn archive_entry_set_devminor "struct archive_entry *" "dev_t"
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.Ft void
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.Fn archive_entry_set_gid "struct archive_entry *" "gid_t"
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.Ft void
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.Fn archive_entry_set_gname "struct archive_entry *" "const char *"
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.Ft void
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.Fn archive_entry_set_hardlink "struct archive_entry *" "const char *"
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.Ft void
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.Fn archive_entry_set_mode "struct archive_entry *" "mode_t"
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.Ft void
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.Fn archive_entry_set_pathname "struct archive_entry *" "const char *"
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.Ft void
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.Fn archive_entry_set_symlink "struct archive_entry *" "const char *"
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.Ft void
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.Fn archive_entry_set_tartype "struct archive_entry *" "int"
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.Ft void
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.Fn archive_entry_set_uid "struct archive_entry *" "uid_t"
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.Ft void
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.Fn archive_entry_set_uname "struct archive_entry *" "const char *"
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.Ft int64_t
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.Fn archive_entry_size "struct archive_entry *"
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.Ft const struct stat *
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.Fn archive_entry_stat "struct archive_entry *"
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.Ft const char *
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.Fn archive_entry_symlink "struct archive_entry *"
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.Ft int
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.Fn archive_entry_tartype "struct archive_entry *"
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.Ft const char *
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.Fn archive_entry_uname "struct archive_entry *"
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.Sh DESCRIPTION
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These functions create and manipulate data objects that
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represent entries within an archive.
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You can think of a
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.Tn struct archive_entry
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as a
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.Tn struct stat
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on steroids: it includes everything from
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.Tn struct stat
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plus associated pathname, textual group and user names, etc.
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These objects are used by
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.Xr libarchive 3
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to represent the metadata associated with a particular
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entry in an archive.
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.Bl -tag -compact -width indent
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.It Fn archive_entry_clear
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Erases the object, resetting all internal fields to the
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same state as a newly-created object.
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This is provided to allow you to quickly recycle objects
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without thrashing the heap.
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.It Fn archive_entry_clone
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A deep copy operation; all text fields are duplicated.
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.It Fn archive_entry_copy_stat
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Copies the contents of the provided
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.Tn struct stat
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into the
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.Tn struct archive_entry
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object.
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.It Fn archive_entry_dup
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A shallow copy; text fields are not duplicated.
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.It Fn archive_entry_free
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Releases the
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.Tn struct archive_entry
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object.
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.It Fn archive_entry_gname
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Returns a pointer to the textual group name.
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.It Fn archive_entry_hardlink
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If this function returns non-NULL, then this object represents
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a hardlink to another filesystem object.
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The contents contain the pathname of the object.
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.It Fn archive_entry_new
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Allocate and return a blank
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.Tn struct archive_entry
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object.
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.It Fn archive_entry_pathname
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Returns a pointer to the pathname.
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.It Fn archive_entry_set_devmajor
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Sets the device major number (only valid for objects representing
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block and character devices).
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.It Fn archive_entry_set_devminor
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Sets the device minor number (only valid for objects representing
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block and character devices).
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.It Fn archive_entry_set_gid
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Sets the group ID for the object.
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.It Fn archive_entry_set_gname
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Sets a pointer to the textual group name.
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Note that the name itself is not copied.
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.It Fn archive_entry_set_hardlink
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Sets the hardlink property; see
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.Fn archive_entry_hardlink
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above.
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.It Fn archive_entry_set_mode
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Sets the file mode.
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.It Fn archive_entry_set_pathname
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Sets a pointer to the pathname.
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Note that the pathname text is not copied.
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.It Fn archive_entry_set_symlink
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Sets a pointer to the contents of a symbolic link.
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Note that the pathname text is not copied.
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.It Fn archive_entry_set_tartype
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Sets the value to be used in a tar-format header
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for this entry.
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Client code should generally not set this; if it
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is left unset, the library will automatically determine
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an appropriate value.
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.It Fn archive_entry_set_uid
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Set the user ID for the object.
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.It Fn archive_entry_set_uname
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Sets a pointer to the textual user name.
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Note that the name itself is not copied.
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.It Fn archive_entry_size
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Returns the size of the object on disk in bytes.
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.It Fn archive_entry_stat
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Returns a pointer to a populated
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.Tn struct stat .
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.It Fn archive_entry_symlink
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Returns a pointer to the symlink contents.
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.It Fn archive_entry_tartype
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Returns the value used in a tar-format header.
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Not generally useful to clients.
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.It Fn archive_entry_uname
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Returns a pointer to the textual user name.
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.El
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.\" .Sh EXAMPLE
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.\" .Sh RETURN VALUES
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.\" .Sh ERRORS
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.Sh SEE ALSO
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.Xr archive 3
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.Sh HISTORY
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The
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.Nm libarchive
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library first appeared in
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.Fx 5.3 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm libarchive
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library was written by
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.An Tim Kientzle Aq kientzle@acm.org .
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.Sh BUGS
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