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Update e2fsprogs to version 1.41.14
[android-x86/external-e2fsprogs.git] / lib / ext2fs / read_bb_file.c
1 /*
2  * read_bb_file.c --- read a list of bad blocks from a FILE *
3  *
4  * Copyright (C) 1994, 1995, 2000 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 <stdio.h>
13 #include <string.h>
14 #if HAVE_UNISTD_H
15 #include <unistd.h>
16 #endif
17 #include <fcntl.h>
18 #include <time.h>
19 #if HAVE_SYS_STAT_H
20 #include <sys/stat.h>
21 #endif
22 #if HAVE_SYS_TYPES_H
23 #include <sys/types.h>
24 #endif
25
26 #include "ext2_fs.h"
27 #include "ext2fs.h"
28
29 /*
30  * Reads a list of bad blocks from  a FILE *
31  */
32 errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
33                                ext2_badblocks_list *bb_list,
34                                void *priv_data,
35                                void (*invalid)(ext2_filsys fs,
36                                                blk_t blk,
37                                                char *badstr,
38                                                void *priv_data))
39 {
40         errcode_t       retval;
41         blk_t           blockno;
42         int             count;
43         char            buf[128];
44
45         if (fs)
46                 EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
47
48         if (!*bb_list) {
49                 retval = ext2fs_badblocks_list_create(bb_list, 10);
50                 if (retval)
51                         return retval;
52         }
53
54         while (!feof (f)) {
55                 if (fgets(buf, sizeof(buf), f) == NULL)
56                         break;
57                 count = sscanf(buf, "%u", &blockno);
58                 if (count <= 0)
59                         continue;
60                 if (fs &&
61                     ((blockno < fs->super->s_first_data_block) ||
62                     (blockno >= fs->super->s_blocks_count))) {
63                         if (invalid)
64                                 (invalid)(fs, blockno, buf, priv_data);
65                         continue;
66                 }
67                 retval = ext2fs_badblocks_list_add(*bb_list, blockno);
68                 if (retval)
69                         return retval;
70         }
71         return 0;
72 }
73
74 struct compat_struct {
75         void (*invalid)(ext2_filsys, blk_t);
76 };
77
78 static void call_compat_invalid(ext2_filsys fs, blk_t blk,
79                                 char *badstr EXT2FS_ATTR((unused)),
80                                 void *priv_data)
81 {
82         struct compat_struct *st;
83
84         st = (struct compat_struct *) priv_data;
85         if (st->invalid)
86                 (st->invalid)(fs, blk);
87 }
88
89
90 /*
91  * Reads a list of bad blocks from  a FILE *
92  */
93 errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
94                               ext2_badblocks_list *bb_list,
95                               void (*invalid)(ext2_filsys fs, blk_t blk))
96 {
97         struct compat_struct st;
98
99         st.invalid = invalid;
100
101         return ext2fs_read_bb_FILE2(fs, f, bb_list, &st,
102                                     call_compat_invalid);
103 }
104
105