/src/e2fsprogs/lib/ext2fs/freefs.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * freefs.c --- free an ext2 filesystem |
3 | | * |
4 | | * Copyright (C) 1993, 1994, 1995, 1996 Theodore Ts'o. |
5 | | * |
6 | | * %Begin-Header% |
7 | | * This file may be redistributed under the terms of the GNU Library |
8 | | * General Public License, version 2. |
9 | | * %End-Header% |
10 | | */ |
11 | | |
12 | | #include "config.h" |
13 | | #include <stdio.h> |
14 | | #if HAVE_UNISTD_H |
15 | | #include <unistd.h> |
16 | | #endif |
17 | | |
18 | | #include "ext2_fs.h" |
19 | | #include "ext2fsP.h" |
20 | | #include "hashmap.h" |
21 | | |
22 | | void ext2fs_free(ext2_filsys fs) |
23 | 885 | { |
24 | 885 | if (!fs || (fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS)) |
25 | 0 | return; |
26 | 885 | if (fs->image_io != fs->io) { |
27 | 0 | if (fs->image_io) |
28 | 0 | io_channel_close(fs->image_io); |
29 | 0 | } |
30 | 885 | if (fs->io) { |
31 | 885 | io_channel_close(fs->io); |
32 | 885 | } |
33 | 885 | if (fs->device_name) |
34 | 885 | ext2fs_free_mem(&fs->device_name); |
35 | 885 | if (fs->super) |
36 | 885 | ext2fs_free_mem(&fs->super); |
37 | 885 | if (fs->orig_super) |
38 | 885 | ext2fs_free_mem(&fs->orig_super); |
39 | 885 | if (fs->group_desc) |
40 | 767 | ext2fs_free_mem(&fs->group_desc); |
41 | 885 | if (fs->block_map) |
42 | 389 | ext2fs_free_block_bitmap(fs->block_map); |
43 | 885 | if (fs->inode_map) |
44 | 22 | ext2fs_free_inode_bitmap(fs->inode_map); |
45 | 885 | if (fs->image_header) |
46 | 0 | ext2fs_free_mem(&fs->image_header); |
47 | | |
48 | 885 | if (fs->badblocks) |
49 | 0 | ext2fs_badblocks_list_free(fs->badblocks); |
50 | 885 | fs->badblocks = 0; |
51 | | |
52 | 885 | if (fs->dblist) |
53 | 0 | ext2fs_free_dblist(fs->dblist); |
54 | | |
55 | 885 | if (fs->icache) |
56 | 0 | ext2fs_free_inode_cache(fs->icache); |
57 | | |
58 | 885 | if (fs->mmp_buf) |
59 | 0 | ext2fs_free_mem(&fs->mmp_buf); |
60 | 885 | if (fs->mmp_cmp) |
61 | 0 | ext2fs_free_mem(&fs->mmp_cmp); |
62 | | |
63 | 885 | if (fs->block_sha_map) |
64 | 0 | ext2fs_hashmap_free(fs->block_sha_map); |
65 | | |
66 | 885 | fs->magic = 0; |
67 | | |
68 | 885 | ext2fs_zero_blocks2(NULL, 0, 0, NULL, NULL); |
69 | 885 | ext2fs_free_mem(&fs); |
70 | 885 | } |
71 | | |
72 | | /* |
73 | | * This procedure frees a badblocks list. |
74 | | */ |
75 | | void ext2fs_u32_list_free(ext2_u32_list bb) |
76 | 0 | { |
77 | 0 | if (bb->magic != EXT2_ET_MAGIC_BADBLOCKS_LIST) |
78 | 0 | return; |
79 | | |
80 | 0 | if (bb->list) |
81 | 0 | ext2fs_free_mem(&bb->list); |
82 | 0 | bb->list = 0; |
83 | 0 | ext2fs_free_mem(&bb); |
84 | 0 | } |
85 | | |
86 | | void ext2fs_badblocks_list_free(ext2_badblocks_list bb) |
87 | 0 | { |
88 | 0 | ext2fs_u32_list_free((ext2_u32_list) bb); |
89 | 0 | } |
90 | | |
91 | | |
92 | | /* |
93 | | * Free a directory block list |
94 | | */ |
95 | | void ext2fs_free_dblist(ext2_dblist dblist) |
96 | 0 | { |
97 | 0 | if (!dblist || (dblist->magic != EXT2_ET_MAGIC_DBLIST)) |
98 | 0 | return; |
99 | | |
100 | 0 | if (dblist->list) |
101 | 0 | ext2fs_free_mem(&dblist->list); |
102 | 0 | dblist->list = 0; |
103 | 0 | if (dblist->fs && dblist->fs->dblist == dblist) |
104 | 0 | dblist->fs->dblist = 0; |
105 | 0 | dblist->magic = 0; |
106 | 0 | ext2fs_free_mem(&dblist); |
107 | 0 | } |
108 | | |