110 lines
2.2 KiB
C
110 lines
2.2 KiB
C
/*
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* read_bb_file.c --- read a list of bad blocks from a FILE *
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*
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* Copyright (C) 1994, 1995, 2000 Theodore Ts'o.
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*
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* %Begin-Header%
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* This file may be redistributed under the terms of the GNU Library
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* General Public License, version 2.
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* %End-Header%
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*/
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#include "config.h"
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#include <stdio.h>
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#include <string.h>
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#if HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <fcntl.h>
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#include <time.h>
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#if HAVE_SYS_STAT_H
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#include <sys/stat.h>
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#endif
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#if HAVE_SYS_TYPES_H
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#include <sys/types.h>
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#endif
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#include "ext2_fs.h"
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#include "ext2fs.h"
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/*
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* Reads a list of bad blocks from a FILE *
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*/
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errcode_t ext2fs_read_bb_FILE2(ext2_filsys fs, FILE *f,
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ext2_badblocks_list *bb_list,
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void *priv_data,
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void (*invalid)(ext2_filsys fs,
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blk_t blk,
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char *badstr,
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void *priv_data))
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{
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errcode_t retval;
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unsigned long long blockno;
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int count;
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char buf[128];
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if (fs)
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EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
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if (!*bb_list) {
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retval = ext2fs_badblocks_list_create(bb_list, 10);
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if (retval)
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return retval;
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}
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while (!feof (f)) {
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if (fgets(buf, sizeof(buf), f) == NULL)
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break;
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count = sscanf(buf, "%llu", &blockno);
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if (count <= 0)
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continue;
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/* Badblocks isn't going to be updated for 64bit */
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if (blockno >> 32)
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return EOVERFLOW;
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if (fs &&
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((blockno < fs->super->s_first_data_block) ||
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(blockno >= ext2fs_blocks_count(fs->super)))) {
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if (invalid)
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(invalid)(fs, (blk64_t) blockno, buf, priv_data);
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continue;
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}
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retval = ext2fs_badblocks_list_add(*bb_list, (blk64_t) blockno);
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if (retval)
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return retval;
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}
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return 0;
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}
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struct compat_struct {
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void (*invalid)(ext2_filsys, blk_t);
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};
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static void call_compat_invalid(ext2_filsys fs, blk_t blk,
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char *badstr EXT2FS_ATTR((unused)),
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void *priv_data)
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{
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struct compat_struct *st;
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st = (struct compat_struct *) priv_data;
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if (st->invalid)
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(st->invalid)(fs, blk);
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}
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/*
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* Reads a list of bad blocks from a FILE *
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*/
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errcode_t ext2fs_read_bb_FILE(ext2_filsys fs, FILE *f,
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ext2_badblocks_list *bb_list,
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void (*invalid)(ext2_filsys fs, blk_t blk))
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{
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struct compat_struct st;
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st.invalid = invalid;
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return ext2fs_read_bb_FILE2(fs, f, bb_list, &st,
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call_compat_invalid);
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}
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