diff options
Diffstat (limited to 'e2fsprogs/ext2fs/check_desc.c')
-rw-r--r-- | e2fsprogs/ext2fs/check_desc.c | 69 |
1 files changed, 0 insertions, 69 deletions
diff --git a/e2fsprogs/ext2fs/check_desc.c b/e2fsprogs/ext2fs/check_desc.c deleted file mode 100644 index dd4b0e9cf..000000000 --- a/e2fsprogs/ext2fs/check_desc.c +++ /dev/null | |||
@@ -1,69 +0,0 @@ | |||
1 | /* vi: set sw=4 ts=4: */ | ||
2 | /* | ||
3 | * check_desc.c --- Check the group descriptors of an ext2 filesystem | ||
4 | * | ||
5 | * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o. | ||
6 | * | ||
7 | * %Begin-Header% | ||
8 | * This file may be redistributed under the terms of the GNU Public | ||
9 | * License. | ||
10 | * %End-Header% | ||
11 | */ | ||
12 | |||
13 | #include <stdio.h> | ||
14 | #include <string.h> | ||
15 | #if HAVE_UNISTD_H | ||
16 | #include <unistd.h> | ||
17 | #endif | ||
18 | #include <fcntl.h> | ||
19 | #include <time.h> | ||
20 | #if HAVE_SYS_STAT_H | ||
21 | #include <sys/stat.h> | ||
22 | #endif | ||
23 | #if HAVE_SYS_TYPES_H | ||
24 | #include <sys/types.h> | ||
25 | #endif | ||
26 | |||
27 | #include "ext2_fs.h" | ||
28 | #include "ext2fs.h" | ||
29 | |||
30 | /* | ||
31 | * This routine sanity checks the group descriptors | ||
32 | */ | ||
33 | errcode_t ext2fs_check_desc(ext2_filsys fs) | ||
34 | { | ||
35 | dgrp_t i; | ||
36 | blk_t block = fs->super->s_first_data_block; | ||
37 | blk_t next; | ||
38 | |||
39 | EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS); | ||
40 | |||
41 | for (i = 0; i < fs->group_desc_count; i++) { | ||
42 | next = block + fs->super->s_blocks_per_group; | ||
43 | /* | ||
44 | * Check to make sure block bitmap for group is | ||
45 | * located within the group. | ||
46 | */ | ||
47 | if (fs->group_desc[i].bg_block_bitmap < block || | ||
48 | fs->group_desc[i].bg_block_bitmap >= next) | ||
49 | return EXT2_ET_GDESC_BAD_BLOCK_MAP; | ||
50 | /* | ||
51 | * Check to make sure inode bitmap for group is | ||
52 | * located within the group | ||
53 | */ | ||
54 | if (fs->group_desc[i].bg_inode_bitmap < block || | ||
55 | fs->group_desc[i].bg_inode_bitmap >= next) | ||
56 | return EXT2_ET_GDESC_BAD_INODE_MAP; | ||
57 | /* | ||
58 | * Check to make sure inode table for group is located | ||
59 | * within the group | ||
60 | */ | ||
61 | if (fs->group_desc[i].bg_inode_table < block || | ||
62 | ((fs->group_desc[i].bg_inode_table + | ||
63 | fs->inode_blocks_per_group) >= next)) | ||
64 | return EXT2_ET_GDESC_BAD_INODE_TABLE; | ||
65 | |||
66 | block = next; | ||
67 | } | ||
68 | return 0; | ||
69 | } | ||