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| 1 | /* Extended cpio format from POSIX.1. |
|---|---|
| 2 | This file is part of the GNU C Library. |
| 3 | Copyright (C) 1992-2022 Free Software Foundation, Inc. |
| 4 | NOTE: The canonical source of this file is maintained with the GNU cpio. |
| 5 | |
| 6 | The GNU C Library is free software; you can redistribute it and/or |
| 7 | modify it under the terms of the GNU Lesser General Public |
| 8 | License as published by the Free Software Foundation; either |
| 9 | version 2.1 of the License, or (at your option) any later version. |
| 10 | |
| 11 | The GNU C Library is distributed in the hope that it will be useful, |
| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | Lesser General Public License for more details. |
| 15 | |
| 16 | You should have received a copy of the GNU Lesser General Public |
| 17 | License along with the GNU C Library; if not, see |
| 18 | <https://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef _CPIO_H |
| 21 | #define _CPIO_H 1 |
| 22 | |
| 23 | /* A cpio archive consists of a sequence of files. |
| 24 | Each file has a 76 byte header, |
| 25 | a variable length, NUL terminated filename, |
| 26 | and variable length file data. |
| 27 | A header for a filename "TRAILER!!!" indicates the end of the archive. */ |
| 28 | |
| 29 | /* All the fields in the header are ISO 646 (approximately ASCII) strings |
| 30 | of octal numbers, left padded, not NUL terminated. |
| 31 | |
| 32 | Field Name Length in Bytes Notes |
| 33 | c_magic 6 must be "070707" |
| 34 | c_dev 6 |
| 35 | c_ino 6 |
| 36 | c_mode 6 see below for value |
| 37 | c_uid 6 |
| 38 | c_gid 6 |
| 39 | c_nlink 6 |
| 40 | c_rdev 6 only valid for chr and blk special files |
| 41 | c_mtime 11 |
| 42 | c_namesize 6 count includes terminating NUL in pathname |
| 43 | c_filesize 11 must be 0 for FIFOs and directories */ |
| 44 | |
| 45 | /* Value for the field `c_magic'. */ |
| 46 | #define MAGIC "070707" |
| 47 | |
| 48 | /* Values for c_mode, OR'd together: */ |
| 49 | |
| 50 | #define C_IRUSR 000400 |
| 51 | #define C_IWUSR 000200 |
| 52 | #define C_IXUSR 000100 |
| 53 | #define C_IRGRP 000040 |
| 54 | #define C_IWGRP 000020 |
| 55 | #define C_IXGRP 000010 |
| 56 | #define C_IROTH 000004 |
| 57 | #define C_IWOTH 000002 |
| 58 | #define C_IXOTH 000001 |
| 59 | |
| 60 | #define C_ISUID 004000 |
| 61 | #define C_ISGID 002000 |
| 62 | #define C_ISVTX 001000 |
| 63 | |
| 64 | #define C_ISBLK 060000 |
| 65 | #define C_ISCHR 020000 |
| 66 | #define C_ISDIR 040000 |
| 67 | #define C_ISFIFO 010000 |
| 68 | #define C_ISSOCK 0140000 |
| 69 | #define C_ISLNK 0120000 |
| 70 | #define C_ISCTG 0110000 |
| 71 | #define C_ISREG 0100000 |
| 72 | |
| 73 | #endif /* cpio.h */ |
| 74 |
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