contrib/cpio/cpiohdr.h

   1 /* Extended cpio header from POSIX.1.
   2    Copyright (C) 1992 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software
  16    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  17
  18 #ifndef _CPIOHDR_H
  19
  20 #define _CPIOHDR_H 1
  21
  22 #include <cpio.h>
  23
  24 struct old_cpio_header
  25 {
  26   unsigned short c_magic;
  27   short c_dev;
  28   unsigned short c_ino;
  29   unsigned short c_mode;
  30   unsigned short c_uid;
  31   unsigned short c_gid;
  32   unsigned short c_nlink;
  33   short c_rdev;
  34   unsigned short c_mtimes[2];
  35   unsigned short c_namesize;
  36   unsigned short c_filesizes[2];
  37   unsigned long c_mtime;        /* Long-aligned copy of `c_mtimes'. */
  38   unsigned long c_filesize;     /* Long-aligned copy of `c_filesizes'. */
  39   char *c_name;
  40 };
  41
  42 /* "New" portable format and CRC format:
  43
  44    Each file has a 110 byte header,
  45    a variable length, NUL terminated filename,
  46    and variable length file data.
  47    A header for a filename "TRAILER!!!" indicates the end of the archive.  */
  48
  49 /* All the fields in the header are ISO 646 (approximately ASCII) strings
  50    of hexadecimal numbers, left padded, not NUL terminated.
  51
  52    Field Name   Length in Bytes Notes
  53    c_magic      6               "070701" for "new" portable format
  54                                 "070702" for CRC format
  55    c_ino        8
  56    c_mode       8
  57    c_uid        8
  58    c_gid        8
  59    c_nlink      8
  60    c_mtime      8
  61    c_filesize   8               must be 0 for FIFOs and directories
  62    c_maj        8
  63    c_min        8
  64    c_rmaj       8               only valid for chr and blk special files
  65    c_rmin       8               only valid for chr and blk special files
  66    c_namesize   8               count includes terminating NUL in pathname
  67    c_chksum     8               0 for "new" portable format; for CRC format
  68                                 the sum of all the bytes in the file  */
  69
  70 struct new_cpio_header
  71 {
  72   unsigned short c_magic;
  73   unsigned long c_ino;
  74   unsigned long c_mode;
  75   unsigned long c_uid;
  76   unsigned long c_gid;
  77   unsigned long c_nlink;
  78   unsigned long c_mtime;
  79   unsigned long c_filesize;
  80   long c_dev_maj;
  81   long c_dev_min;
  82   long c_rdev_maj;
  83   long c_rdev_min;
  84   unsigned long c_namesize;
  85   unsigned long c_chksum;
  86   char *c_name;
  87   char *c_tar_linkname;
  88 };
  89
  90 #endif /* cpiohdr.h */