2 * Copyright (c) 2010 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Alex Hornung <ahornung@gmail.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <vfs/ufs/ufs_types.h>
36 #include <vfs/ufs/fs.h>
38 static char buffer[MAXBSIZE];
41 ufs_probe(const char *dev)
46 fd = open(dev, O_RDONLY);
51 ret = lseek(fd, SBOFF, SEEK_SET);
55 ret = read(fd, &buffer, SBSIZE);
62 fs = (struct fs *)&buffer;
64 if (fs->fs_magic != FS_MAGIC || fs->fs_bsize > MAXBSIZE ||
65 (unsigned)fs->fs_bsize < sizeof(struct fs)) {
73 ufs_volname(const char *dev)
78 fd = open(dev, O_RDONLY);
83 ret = lseek(fd, SBOFF, SEEK_SET);
87 ret = read(fd, &buffer, SBSIZE);
94 fs = (struct fs *)&buffer;
96 if (fs->fs_magic != FS_MAGIC || fs->fs_bsize > MAXBSIZE ||
97 (unsigned)fs->fs_bsize < sizeof(struct fs)) {
101 if (fs->fs_volname[0] == '\0')
104 fs->fs_volname[MAXVOLLEN - 1] = '\0';
105 return fs->fs_volname;