1 /* Header describing `ar' archive file format. 2 Copyright (C) 1996-2022 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 */ 48