1/* archive file definition for GNU software
2
3   Copyright (C) 2001-2020 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program; if not, write to the Free Software
17   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
18   MA 02110-1301, USA.  */
19
20/* So far this is correct for BSDish archives.  Don't forget that
21   files must begin on an even byte boundary. */
22
23#ifndef __GNU_AR_H__
24#define __GNU_AR_H__
25
26/* Note that the usual '\n' in magic strings may translate to different
27   characters, as allowed by ANSI.  '\012' has a fixed value, and remains
28   compatible with existing BSDish archives. */
29
30#define ARMAG  "!<arch>\012"	/* For COFF and a.out archives.  */
31#define ARMAGT "!<thin>\012"	/* For thin archives.  */
32#define SARMAG 8
33#define ARFMAG "`\012"
34
35/* The ar_date field of the armap (__.SYMDEF) member of an archive
36   must be greater than the modified date of the entire file, or
37   BSD-derived linkers complain.  We originally write the ar_date with
38   this offset from the real file's mod-time.  After finishing the
39   file, we rewrite ar_date if it's not still greater than the mod date.  */
40
41#define ARMAP_TIME_OFFSET       60
42
43struct ar_hdr
44{
45  char ar_name[16];		/* Name of this member.  */
46  char ar_date[12];		/* File mtime.  */
47  char ar_uid[6];		/* Owner uid; printed as decimal.  */
48  char ar_gid[6];		/* Owner gid; printed as decimal.  */
49  char ar_mode[8];		/* File mode, printed as octal.   */
50  char ar_size[10];		/* File size, printed as decimal.  */
51  char ar_fmag[2];		/* Should contain ARFMAG.  */
52};
53
54#endif /* __GNU_AR_H__ */
55