1 | /*
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2 | * read_bb_file.c --- read a list of bad blocks from a FILE *
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3 | *
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4 | * Copyright (C) 1994, 1995, 2000 Theodore Ts'o.
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5 | *
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6 | * %Begin-Header%
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7 | * This file may be redistributed under the terms of the GNU Public
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8 | * License.
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9 | * %End-Header%
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10 | */
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11 |
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12 | #include <stdio.h>
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13 | #include <string.h>
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14 | #if HAVE_UNISTD_H
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15 | #include <unistd.h>
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16 | #endif
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17 | #include <fcntl.h>
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18 | #include <time.h>
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19 | #if HAVE_SYS_STAT_H
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20 | #include <sys/stat.h>
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21 | #endif
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22 | #if HAVE_SYS_TYPES_H
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23 | #include <sys/types.h>
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24 | #endif
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25 |
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26 | #include "ext2_fs.h"
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27 | #include "ext2fs.h"
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28 |
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29 | /*
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30 | * Reads a list of bad blocks from a FILE *
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31 | */
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32 | errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
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33 | ext2_badblocks_list *bb_list,
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34 | void *priv_data,
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35 | void (*invalid)(ext2_filsys fs,
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36 | blk_t blk,
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37 | char *badstr,
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38 | void *priv_data))
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39 | {
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40 | errcode_t retval;
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41 | blk_t blockno;
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42 | int count;
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43 | char buf[128];
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44 |
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45 | if (fs)
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46 | EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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47 |
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48 | if (!*bb_list) {
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49 | retval = ext2fs_badblocks_list_create(bb_list, 10);
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50 | if (retval)
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51 | return retval;
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52 | }
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53 |
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54 | while (!feof (f)) {
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55 | if (fgets(buf, sizeof(buf), f) == NULL)
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56 | break;
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57 | count = sscanf(buf, "%u", &blockno);
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58 | if (count <= 0)
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59 | continue;
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60 | if (fs &&
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61 | ((blockno < fs->super->s_first_data_block) ||
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62 | (blockno >= fs->super->s_blocks_count))) {
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63 | if (invalid)
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64 | (invalid)(fs, blockno, buf, priv_data);
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65 | continue;
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66 | }
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67 | retval = ext2fs_badblocks_list_add(*bb_list, blockno);
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68 | if (retval)
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69 | return retval;
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70 | }
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71 | return 0;
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72 | }
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73 |
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74 | static void call_compat_invalid(ext2_filsys fs, blk_t blk,
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75 | char *badstr EXT2FS_ATTR((unused)),
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76 | void *priv_data)
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77 | {
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78 | void (*invalid)(ext2_filsys, blk_t);
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79 |
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80 | invalid = (void (*)(ext2_filsys, blk_t)) priv_data;
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81 | if (invalid)
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82 | invalid(fs, blk);
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83 | }
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84 |
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85 |
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86 | /*
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87 | * Reads a list of bad blocks from a FILE *
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88 | */
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89 | errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
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90 | ext2_badblocks_list *bb_list,
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91 | void (*invalid)(ext2_filsys fs, blk_t blk))
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92 | {
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93 | return ext2fs_read_bb_FILE2(fs, f, bb_list, (void *) invalid,
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94 | call_compat_invalid);
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95 | }
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96 |
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97 |
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