arch/all-pc/boot/grub2-aros/grub-core/fs/newc.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) (ALIGN_UP ((x), 4))
  23 #define MAGIC   "070701"
  24 #define MAGIC2  "070702"
  25 struct head
  26 {
  27   char magic[6];
  28   char ino[8];
  29   char mode[8];
  30   char uid[8];
  31   char gid[8];
  32   char nlink[8];
  33   char mtime[8];
  34   char filesize[8];
  35   char devmajor[8];
  36   char devminor[8];
  37   char rdevmajor[8];
  38   char rdevminor[8];
  39   char namesize[8];
  40   char check[8];
  41 } GRUB_PACKED;
  42
  43 static inline unsigned long long
  44 read_number (const char *str, grub_size_t size)
  45 {
  46   unsigned long long ret = 0;
  47   while (size-- && grub_isxdigit (*str))
  48     {
  49       char dig = *str++;
  50       if (dig >= '0' && dig <= '9')
  51         dig &= 0xf;
  52       else if (dig >= 'a' && dig <= 'f')
  53         dig -= 'a' - 10;
  54       else
  55         dig -= 'A' - 10;
  56       ret = (ret << 4) | (dig);
  57     }
  58   return ret;
  59 }
  60
  61 #define FSNAME "newc"
  62
  63 #include "cpio_common.c"
  64
  65 GRUB_MOD_INIT (newc)
  66 {
  67   grub_fs_register (&grub_cpio_fs);
  68 }
  69
  70 GRUB_MOD_FINI (newc)
  71 {
  72   grub_fs_unregister (&grub_cpio_fs);
  73 }