| 1 | /* vi: set sw=4 ts=4: */
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| 2 | /*
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| 3 | * read_bb_file.c --- read a list of bad blocks from a FILE *
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| 4 | *
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| 5 | * Copyright (C) 1994, 1995, 2000 Theodore Ts'o.
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| 6 | *
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| 7 | * %Begin-Header%
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| 8 | * This file may be redistributed under the terms of the GNU Public
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| 9 | * License.
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| 10 | * %End-Header%
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| 11 | */
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| 12 |
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| 13 | #include <stdio.h>
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| 14 | #include <string.h>
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| 15 | #if HAVE_UNISTD_H
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| 16 | #include <unistd.h>
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| 17 | #endif
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| 18 | #include <fcntl.h>
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| 19 | #include <time.h>
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| 20 | #if HAVE_SYS_STAT_H
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| 21 | #include <sys/stat.h>
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| 22 | #endif
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| 23 | #if HAVE_SYS_TYPES_H
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| 24 | #include <sys/types.h>
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| 25 | #endif
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| 26 |
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| 27 | #include "ext2_fs.h"
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| 28 | #include "ext2fs.h"
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| 29 |
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| 30 | /*
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| 31 | * Reads a list of bad blocks from a FILE *
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| 32 | */
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| 33 | errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
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| 34 | ext2_badblocks_list *bb_list,
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| 35 | void *priv_data,
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| 36 | void (*invalid)(ext2_filsys fs,
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| 37 | blk_t blk,
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| 38 | char *badstr,
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| 39 | void *priv_data))
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| 40 | {
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| 41 | errcode_t retval;
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| 42 | blk_t blockno;
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| 43 | int count;
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| 44 | char buf[128];
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| 45 |
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| 46 | if (fs)
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| 47 | EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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| 48 |
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| 49 | if (!*bb_list) {
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| 50 | retval = ext2fs_badblocks_list_create(bb_list, 10);
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| 51 | if (retval)
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| 52 | return retval;
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| 53 | }
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| 54 |
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| 55 | while (!feof (f)) {
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| 56 | if (fgets(buf, sizeof(buf), f) == NULL)
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| 57 | break;
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| 58 | count = sscanf(buf, "%u", &blockno);
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| 59 | if (count <= 0)
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| 60 | continue;
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| 61 | if (fs &&
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| 62 | ((blockno < fs->super->s_first_data_block) ||
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| 63 | (blockno >= fs->super->s_blocks_count))) {
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| 64 | if (invalid)
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| 65 | (invalid)(fs, blockno, buf, priv_data);
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| 66 | continue;
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| 67 | }
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| 68 | retval = ext2fs_badblocks_list_add(*bb_list, blockno);
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| 69 | if (retval)
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| 70 | return retval;
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| 71 | }
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| 72 | return 0;
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| 73 | }
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| 74 |
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| 75 | static void call_compat_invalid(ext2_filsys fs, blk_t blk,
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| 76 | char *badstr EXT2FS_ATTR((unused)),
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| 77 | void *priv_data)
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| 78 | {
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| 79 | void (*invalid)(ext2_filsys, blk_t);
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| 80 |
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| 81 | invalid = (void (*)(ext2_filsys, blk_t)) priv_data;
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| 82 | if (invalid)
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| 83 | invalid(fs, blk);
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| 84 | }
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| 85 |
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| 86 |
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| 87 | /*
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| 88 | * Reads a list of bad blocks from a FILE *
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| 89 | */
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| 90 | errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
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| 91 | ext2_badblocks_list *bb_list,
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| 92 | void (*invalid)(ext2_filsys fs, blk_t blk))
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| 93 | {
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| 94 | return ext2fs_read_bb_FILE2(fs, f, bb_list, (void *) invalid,
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| 95 | call_compat_invalid);
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| 96 | }
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| 97 |
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| 98 |
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