arch/all-pc/boot/grub2-aros/grub-core/fs/cpio.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 /* cpio support */
  23 #define ALIGN_CPIO(x) (ALIGN_UP ((x), 2))
  24 #define MAGIC       "\xc7\x71"
  25 struct head
  26 {
  27   grub_uint16_t magic[1];
  28   grub_uint16_t dev;
  29   grub_uint16_t ino;
  30   grub_uint16_t mode[1];
  31   grub_uint16_t uid;
  32   grub_uint16_t gid;
  33   grub_uint16_t nlink;
  34   grub_uint16_t rdev;
  35   grub_uint16_t mtime[2];
  36   grub_uint16_t namesize[1];
  37   grub_uint16_t filesize[2];
  38 } GRUB_PACKED;
  39
  40 static inline unsigned long long
  41 read_number (const grub_uint16_t *arr, grub_size_t size)
  42 {
  43   long long ret = 0;
  44   while (size--)
  45     ret = (ret << 16) | grub_le_to_cpu16 (*arr++);
  46   return ret;
  47 }
  48
  49 #define FSNAME "cpiofs"
  50
  51 #include "cpio_common.c"
  52
  53 GRUB_MOD_INIT (cpio)
  54 {
  55   grub_fs_register (&grub_cpio_fs);
  56 }
  57
  58 GRUB_MOD_FINI (cpio)
  59 {
  60   grub_fs_unregister (&grub_cpio_fs);
  61 }