LXR busybox/util-linux/volume_id/unused

   1/*
   2 * volume_id - reads filesystem label and uuid
   3 *
   4 * Copyright (C) 2005 Kay Sievers <kay.sievers@vrfy.org>
   5 *
   6 *      This 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 *      This 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 this library; if not, write to the Free Software
  18 *      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  19 */
  20
  21//kbuild:### lib-$(CONFIG_FEATURE_VOLUMEID_HPFS) += hpfs.o
  22
  23//config:
  24//config:### config FEATURE_VOLUMEID_HPFS
  25//config:###    bool "hpfs filesystem"
  26//config:###    default y
  27//config:###    depends on VOLUMEID
  28//config:###    help
  29//config:###      TODO
  30//config:
  31
  32#include "volume_id_internal.h"
  33
  34struct hpfs_super {
  35        uint8_t         magic[4];
  36        uint8_t         version;
  37} PACKED;
  38
  39#define HPFS_SUPERBLOCK_OFFSET                  0x2000
  40
  41int FAST_FUNC volume_id_probe_hpfs(struct volume_id *id, uint64_t off)
  42{
  43        struct hpfs_super *hs;
  44
  45        dbg("probing at offset 0x%llx", (unsigned long long) off);
  46
  47        hs = volume_id_get_buffer(id, off + HPFS_SUPERBLOCK_OFFSET, 0x200);
  48        if (hs == NULL)
  49                return -1;
  50
  51        if (memcmp(hs->magic, "\x49\xe8\x95\xf9", 4) == 0) {
  52//              sprintf(id->type_version, "%u", hs->version);
  53//              volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
  54//              id->type = "hpfs";
  55                return 0;
  56        }
  57
  58        return -1;
  59}
  60