grub-core/fs/odc.c

   1 /* cpio.c - cpio and tar filesystem.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2007,2008,2009,2013 Free Software Foundation, Inc.
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program 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
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <grub/misc.h>
  21
  22 #define ALIGN_CPIO(x) x
  23
  24 #define MAGIC   "070707"
  25 struct head
  26 {
  27   char magic[6];
  28   char dev[6];
  29   char ino[6];
  30   char mode[6];
  31   char uid[6];
  32   char gid[6];
  33   char nlink[6];
  34   char rdev[6];
  35   char mtime[11];
  36   char namesize[6];
  37   char filesize[11];
  38 } GRUB_PACKED;
  39
  40 static inline unsigned long long
  41 read_number (const char *str, grub_size_t size)
  42 {
  43   unsigned long long ret = 0;
  44   while (size-- && *str >= '0' && *str <= '7')
  45     ret = (ret << 3) | (*str++ & 0xf);
  46   return ret;
  47 }
  48
  49 #define FSNAME "odc"
  50
  51 #include "cpio_common.c"
  52
  53 GRUB_MOD_INIT (odc)
  54 {
  55   grub_fs_register (&grub_cpio_fs);
  56 }
  57
  58 GRUB_MOD_FINI (odc)
  59 {
  60   grub_fs_unregister (&grub_cpio_fs);
  61 }