← Back to branch summary

~ubuntu-branches/ubuntu/trusty/util-linux/trusty-proposed

« back to all changes in this revision

Viewing changes to shlibs/blkid/src/superblocks/squashfs.c

  • Committer: Package Import Robot
  • Author(s): LaMont Jones
  • Date: 2011-11-03 15:38:23 UTC
  • mto: (4.5.5 sid) (1.6.4)
  • mto: This revision was merged to the branch mainline in revision 85.
  • Revision ID: package-import@ubuntu.com-20111103153823-10sx16jprzxlhkqf
Import upstream version 2.20.1

Show diffs side-by-side

added added

removed removed

Lines of Context:
shlibs/blkid/src/superblocks/squashfs.c
1
 
/*
2
 
 * Copyright (C) 2008 Karel Zak <kzak@redhat.com>
3
 
 *
4
 
 * Inspired by libvolume_id by
5
 
 *     Kay Sievers <kay.sievers@vrfy.org>
6
 
 *
7
 
 * This file may be redistributed under the terms of the
8
 
 * GNU Lesser General Public License.
9
 
 */
10
 
#include <stdio.h>
11
 
#include <stdlib.h>
12
 
#include <unistd.h>
13
 
#include <string.h>
14
 
#include <stdint.h>
15
 
 
16
 
#include "bitops.h"     /* swab16() */
17
 
#include "superblocks.h"
18
 
 
19
 
struct sqsh_super_block {
20
 
        uint32_t        s_magic;
21
 
        uint32_t        inodes;
22
 
        uint32_t        bytes_used_2;
23
 
        uint32_t        uid_start_2;
24
 
        uint32_t        guid_start_2;
25
 
        uint32_t        inode_table_start_2;
26
 
        uint32_t        directory_table_start_2;
27
 
        uint16_t        s_major;
28
 
        uint16_t        s_minor;
29
 
} __attribute__((packed));
30
 
 
31
 
static int probe_squashfs(blkid_probe pr, const struct blkid_idmag *mag)
32
 
{
33
 
        struct sqsh_super_block *sq;
34
 
 
35
 
        sq = blkid_probe_get_sb(pr, mag, struct sqsh_super_block);
36
 
        if (!sq)
37
 
                return -1;
38
 
 
39
 
        if (strcmp(mag->magic, "sqsh") == 0 ||
40
 
            strcmp(mag->magic, "qshs") == 0)
41
 
                blkid_probe_sprintf_version(pr, "%u.%u",
42
 
                                sq->s_major,
43
 
                                sq->s_minor);
44
 
        else
45
 
                blkid_probe_sprintf_version(pr, "%u.%u",
46
 
                                swab16(sq->s_major),
47
 
                                swab16(sq->s_minor));
48
 
        return 0;
49
 
}
50
 
 
51
 
const struct blkid_idinfo squashfs_idinfo =
52
 
{
53
 
        .name           = "squashfs",
54
 
        .usage          = BLKID_USAGE_FILESYSTEM,
55
 
        .probefunc      = probe_squashfs,
56
 
        .magics         =
57
 
        {
58
 
                { .magic = "sqsh", .len = 4 },
59
 
                { .magic = "hsqs", .len = 4 }, /* swap */
60
 
 
61
 
                /* LZMA version */
62
 
                { .magic = "qshs", .len = 4 },
63
 
                { .magic = "shsq", .len = 4 }, /* swap */
64
 
                { NULL }
65
 
        }
66
 
};
67
 
 
68