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 43 struct 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