.\" Copyright (c) 2003-2007 Tim Kientzle
.\" Copyright (c) 2010 Joerg Sonnenberger
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.Dd February 2, 2012
.Dt ARCHIVE_ENTRY_TIME 3
.Os
.Sh NAME
.Nm archive_entry_atime ,
.Nm archive_entry_atime_nsec ,
.Nm archive_entry_atime_is_set ,
.Nm archive_entry_set_atime ,
.Nm archive_entry_unset_atime ,
.Nm archive_entry_birthtime ,
.Nm archive_entry_birthtime_nsec ,
.Nm archive_entry_birthtime_is_set ,
.Nm archive_entry_set_birthtime ,
.Nm archive_entry_unset_birthtime ,
.Nm archive_entry_ctime ,
.Nm archive_entry_ctime_nsec ,
.Nm archive_entry_ctime_is_set ,
.Nm archive_entry_set_ctime ,
.Nm archive_entry_unset_ctime ,
.Nm archive_entry_mtime ,
.Nm archive_entry_mtime_nsec ,
.Nm archive_entry_mtime_is_set ,
.Nm archive_entry_set_mtime ,
.Nm archive_entry_unset_mtime
.Nd functions for manipulating times in archive entry descriptions
.Sh LIBRARY
Streaming Archive Library (libarchive, -larchive)
.Sh SYNOPSIS
.In archive_entry.h
.Ft time_t
.Fn archive_entry_atime "struct archive_entry *a"
.Ft long
.Fn archive_entry_atime_nsec "struct archive_entry *a"
.Ft int
.Fn archive_entry_atime_is_set "struct archive_entry *a"
.Ft void
.Fn archive_entry_set_atime "struct archive_entry *a" "time_t sec" "long nanosec"
.Ft void
.Fn archive_entry_unset_atime "struct archive_entry *a"
.Ft time_t
.Fn archive_entry_birthtime "struct archive_entry *a"
.Ft long
.Fn archive_entry_birthtime_nsec "struct archive_entry *a"
.Ft int
.Fn archive_entry_birthtime_is_set "struct archive_entry *a"
.Ft void
.Fn archive_entry_set_birthtime "struct archive_entry *a" "time_t sec" "long nanosec"
.Ft void
.Fn archive_entry_unset_birthtime "struct archive_entry *a"
.Ft time_t
.Fn archive_entry_ctime "struct archive_entry *a"
.Ft long
.Fn archive_entry_ctime_nsec "struct archive_entry *a"
.Ft int
.Fn archive_entry_ctime_is_set "struct archive_entry *a"
.Ft void
.Fn archive_entry_set_ctime "struct archive_entry *a" "time_t sec" "long nanosec"
.Ft void
.Fn archive_entry_unset_ctime "struct archive_entry *a"
.Ft time_t
.Fn archive_entry_mtime "struct archive_entry *a"
.Ft long
.Fn archive_entry_mtime_nsec "struct archive_entry *a"
.Ft int
.Fn archive_entry_mtime_is_set "struct archive_entry *a"
.Ft void
.Fn archive_entry_set_mtime "struct archive_entry *a" "time_t sec" "long nanosec"
.Ft void
.Fn archive_entry_unset_mtime "struct archive_entry *a"
.Sh DESCRIPTION
These functions create and manipulate the time fields in an
.Vt archive_entry .
Supported time fields are atime (access time), birthtime (creation time),
ctime (last time an inode property was changed) and mtime (modification time).
.Pp
.Xr libarchive 3
provides a high-resolution interface.
The timestamps are truncated automatically depending on the archive format
(for archiving) or the filesystem capabilities (for restoring).
.Pp
All timestamp fields are optional.
The
.Fn XXX_unset
functions can be used to mark the corresponding field as missing.
The current state can be queried using
.Fn XXX_is_set .
Unset time fields have a second and nanosecond field of 0.
.Sh SEE ALSO
.Xr archive_entry 3 ,
.Xr libarchive 3
.Sh HISTORY
The
.Nm libarchive
library first appeared in
.Fx 5.3 .
.Sh AUTHORS
.An -nosplit
The
.Nm libarchive
library was written by
.An Tim Kientzle Aq kientzle@acm.org .
.\" .Sh BUGS
