glibc (2.38)
1 /* Header describing `ar' archive file format.
2 Copyright (C) 1996-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library 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 GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #ifndef _AR_H
20 #define _AR_H 1
21
22 #include <sys/cdefs.h>
23
24 /* Archive files start with the ARMAG identifying string. Then follows a
25 `struct ar_hdr', and as many bytes of member file data as its `ar_size'
26 member indicates, for each member file. */
27
28 #define ARMAG "!<arch>\n" /* String that begins an archive file. */
29 #define SARMAG 8 /* Size of that string. */
30
31 #define ARFMAG "`\n" /* String in ar_fmag at end of each header. */
32
33 __BEGIN_DECLS
34
35 struct ar_hdr
36 {
37 char ar_name[16]; /* Member file name, sometimes / terminated. */
38 char ar_date[12]; /* File date, decimal seconds since Epoch. */
39 char ar_uid[6], ar_gid[6]; /* User and group IDs, in ASCII decimal. */
40 char ar_mode[8]; /* File mode, in ASCII octal. */
41 char ar_size[10]; /* File size, in ASCII decimal. */
42 char ar_fmag[2]; /* Always contains ARFMAG. */
43 };
44
45 __END_DECLS
46
47 #endif /* ar.h */
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