2 * Copyright (c) 2005 Stanislav Sedov
3 * Copyright (c) 2014 The FreeBSD Foundation
6 * This software was developed by Edward Tomasz Napierala under sponsorship
7 * from the FreeBSD Foundation.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 #include <sys/cdefs.h>
32 __FBSDID("$FreeBSD$");
41 #define EXT2FS_SB_OFFSET 1024
42 #define EXT2_SUPER_MAGIC 0xef53
43 #define EXT2_DYNAMIC_REV 1
51 char s_volume_name[16];
55 fstyp_ext2fs(FILE *fp, char *label, size_t size)
60 fs = (e2sb_t *)read_buf(fp, EXT2FS_SB_OFFSET, 512);
64 /* Check for magic and versio n*/
65 if (fs->s_magic == EXT2_SUPER_MAGIC &&
66 fs->s_rev_level == EXT2_DYNAMIC_REV) {
67 //G_LABEL_DEBUG(1, "ext2fs file system detected on %s.",
74 s_volume_name = fs->s_volume_name;
76 s_volume_name[sizeof(fs->s_volume_name) - 1] = '\0';
78 if (s_volume_name[0] == '/')
81 strlcpy(label, s_volume_name, size);