mirror of https://github.com/vitalif/e2fsprogs
139 lines
3.0 KiB
C
139 lines
3.0 KiB
C
/*
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* badblocks.c --- replace/append bad blocks to the bad block inode
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*
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* Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
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* redistributed under the terms of the GNU Public License.
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*/
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#include <time.h>
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include <et/com_err.h>
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#include "e2fsck.h"
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static int check_bb_inode_blocks(ext2_filsys fs, blk_t *block_nr, int blockcnt,
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void *private);
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static void invalid_block(ext2_filsys fs, blk_t blk)
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{
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printf("Bad block %u out of range; ignored.\n", blk);
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return;
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}
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void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
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int replace_bad_blocks)
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{
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ext2_filsys fs = ctx->fs;
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errcode_t retval;
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badblocks_list bb_list = 0;
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FILE *f;
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char buf[1024];
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e2fsck_read_bitmaps(ctx);
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/*
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* Make sure the bad block inode is sane. If there are any
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* illegal blocks, clear them.
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*/
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retval = ext2fs_block_iterate(fs, EXT2_BAD_INO, 0, 0,
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check_bb_inode_blocks, 0);
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if (retval) {
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com_err("ext2fs_block_iterate", retval,
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"while sanity checking the bad blocks inode");
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goto fatal;
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}
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/*
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* If we're appending to the bad blocks inode, read in the
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* current bad blocks.
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*/
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if (!replace_bad_blocks) {
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retval = ext2fs_read_bb_inode(fs, &bb_list);
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if (retval) {
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com_err("ext2fs_read_bb_inode", retval,
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"while reading the bad blocks inode");
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goto fatal;
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}
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}
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/*
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* Now read in the bad blocks from the file; if
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* bad_blocks_file is null, then try to run the badblocks
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* command.
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*/
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if (bad_blocks_file) {
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f = fopen(bad_blocks_file, "r");
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if (!f) {
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com_err("read_bad_blocks_file", errno,
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"while trying to open %s", bad_blocks_file);
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goto fatal;
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}
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} else {
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sprintf(buf, "badblocks -b %d %s%s %d", fs->blocksize,
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(ctx->options & E2F_OPT_PREEN) ? "" : "-s ",
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fs->device_name, fs->super->s_blocks_count);
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f = popen(buf, "r");
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if (!f) {
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com_err("read_bad_blocks_file", errno,
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"while trying popen '%s'", buf);
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goto fatal;
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}
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}
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retval = ext2fs_read_bb_FILE(fs, f, &bb_list, invalid_block);
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if (bad_blocks_file)
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fclose(f);
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else
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pclose(f);
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if (retval) {
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com_err("ext2fs_read_bb_FILE", retval,
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"while reading in list of bad blocks from file");
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goto fatal;
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}
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/*
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* Finally, update the bad blocks from the bad_block_map
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*/
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retval = ext2fs_update_bb_inode(fs, bb_list);
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if (retval) {
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com_err("ext2fs_update_bb_inode", retval,
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"while updating bad block inode");
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goto fatal;
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}
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badblocks_list_free(bb_list);
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return;
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fatal:
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ctx->flags |= E2F_FLAG_ABORT;
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return;
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}
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void test_disk(e2fsck_t ctx)
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{
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read_bad_blocks_file(ctx, 0, 1);
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}
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static int check_bb_inode_blocks(ext2_filsys fs, blk_t *block_nr, int blockcnt,
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void *private)
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{
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if (!*block_nr)
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return 0;
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/*
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* If the block number is outrageous, clear it and ignore it.
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*/
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if (*block_nr >= fs->super->s_blocks_count ||
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*block_nr < fs->super->s_first_data_block) {
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printf("Warning illegal block %u found in bad block inode. Cleared.\n", *block_nr);
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*block_nr = 0;
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return BLOCK_CHANGED;
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}
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return 0;
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}
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