source: branches/3.2/mindi-busybox/util-linux/volume_id/romfs.c @ 3232

Last change on this file since 3232 was 3232, checked in by bruno, 5 years ago
  • Update mindi-busybox to 1.21.1
  • Property svn:eol-style set to native
File size: 1.6 KB
Line 
1/*
2 * volume_id - reads filesystem label and uuid
3 *
4 * Copyright (C) 2004 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#include "volume_id_internal.h"
22
23struct romfs_super {
24    uint8_t magic[8];
25    uint32_t size;
26    uint32_t checksum;
27    uint8_t name[];
28} PACKED;
29
30int FAST_FUNC volume_id_probe_romfs(struct volume_id *id /*,uint64_t off*/)
31{
32#define off ((uint64_t)0)
33    struct romfs_super *rfs;
34
35    dbg("probing at offset 0x%llx", (unsigned long long) off);
36
37    rfs = volume_id_get_buffer(id, off, 0x200);
38    if (rfs == NULL)
39        return -1;
40
41    if (memcmp(rfs->magic, "-rom1fs-", 4) == 0) {
42        size_t len = strlen((char *)rfs->name);
43
44        if (len) {
45//          volume_id_set_label_raw(id, rfs->name, len);
46            volume_id_set_label_string(id, rfs->name, len);
47        }
48
49//      volume_id_set_usage(id, VOLUME_ID_FILESYSTEM);
50        IF_FEATURE_BLKID_TYPE(id->type = "romfs";)
51        return 0;
52    }
53
54    return -1;
55}
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