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/*
* badblocks.c --- replace/append bad blocks to the bad block inode
*
* Copyright (C) 1993, 1994 Theodore Ts'o. This file may be
* redistributed under the terms of the GNU Public License.
*/
#include <time.h>
#ifdef HAVE_ERRNO_H
#include <errno.h>
#endif
#include <et/com_err.h>
#include "e2fsck.h"
static int check_bb_inode_blocks(ext2_filsys fs, blk_t *block_nr, int blockcnt,
void *priv_data);
static void invalid_block(ext2_filsys fs EXT2FS_ATTR((unused)), blk_t blk)
{
printf(_("Bad block %u out of range; ignored.\n"), blk);
return;
}
void read_bad_blocks_file(e2fsck_t ctx, const char *bad_blocks_file,
int replace_bad_blocks)
{
ext2_filsys fs = ctx->fs;
errcode_t retval;
badblocks_list bb_list = 0;
FILE *f;
char buf[1024];
e2fsck_read_bitmaps(ctx);
/*
* Make sure the bad block inode is sane. If there are any
* illegal blocks, clear them.
*/
retval = ext2fs_block_iterate(fs, EXT2_BAD_INO, 0, 0,
check_bb_inode_blocks, 0);
if (retval) {
com_err("ext2fs_block_iterate", retval,
_("while sanity checking the bad blocks inode"));
goto fatal;
}
/*
* If we're appending to the bad blocks inode, read in the
* current bad blocks.
*/
if (!replace_bad_blocks) {
retval = ext2fs_read_bb_inode(fs, &bb_list);
if (retval) {
com_err("ext2fs_read_bb_inode", retval,
_("while reading the bad blocks inode"));
goto fatal;
}
}
/*
* Now read in the bad blocks from the file; if
* bad_blocks_file is null, then try to run the badblocks
* command.
*/
if (bad_blocks_file) {
f = fopen(bad_blocks_file, "r");
if (!f) {
com_err("read_bad_blocks_file", errno,
_("while trying to open %s"), bad_blocks_file);
goto fatal;
}
} else {
sprintf(buf, "badblocks -b %d %s%s%s %d", fs->blocksize,
(ctx->options & E2F_OPT_PREEN) ? "" : "-s ",
(ctx->options & E2F_OPT_WRITECHECK) ? "-n " : "",
fs->device_name, fs->super->s_blocks_count);
f = popen(buf, "r");
if (!f) {
com_err("read_bad_blocks_file", errno,
_("while trying popen '%s'"), buf);
goto fatal;
}
}
retval = ext2fs_read_bb_FILE(fs, f, &bb_list, invalid_block);
if (bad_blocks_file)
fclose(f);
else
pclose(f);
if (retval) {
com_err("ext2fs_read_bb_FILE", retval,
_("while reading in list of bad blocks from file"));
goto fatal;
}
/*
* Finally, update the bad blocks from the bad_block_map
*/
retval = ext2fs_update_bb_inode(fs, bb_list);
if (retval) {
com_err("ext2fs_update_bb_inode", retval,
_("while updating bad block inode"));
goto fatal;
}
ext2fs_badblocks_list_free(bb_list);
return;
fatal:
ctx->flags |= E2F_FLAG_ABORT;
return;
}
static int check_bb_inode_blocks(ext2_filsys fs,
blk_t *block_nr,
int blockcnt EXT2FS_ATTR((unused)),
void *priv_data EXT2FS_ATTR((unused)))
{
if (!*block_nr)
return 0;
/*
* If the block number is outrageous, clear it and ignore it.
*/
if (*block_nr >= fs->super->s_blocks_count ||
*block_nr < fs->super->s_first_data_block) {
printf(_("Warning illegal block %u found in bad block inode. Cleared.\n"), *block_nr);
*block_nr = 0;
return BLOCK_CHANGED;
}
return 0;
}
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