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- /*
- * read_bb --- read the bad blocks inode
- *
- * Copyright (C) 1994 Theodore Ts'o. This file may be redistributed
- * under the terms of the GNU Public License.
- */
-
- #include <stdio.h>
- #include <string.h>
- #include <unistd.h>
- #include <stdlib.h>
- #include <fcntl.h>
- #include <time.h>
- #include <errno.h>
- #include <sys/stat.h>
- #include <sys/types.h>
-
- #include <linux/ext2_fs.h>
-
- #include "ext2fs.h"
-
- struct read_bb_record {
- badblocks_list bb_list;
- errcode_t err;
- };
-
- /*
- * Helper function for ext2fs_read_bb_inode()
- */
- static int mark_bad_block(ext2_filsys fs, blk_t *block_nr,
- int blockcnt, void *private)
- {
- struct read_bb_record *rb = (struct read_bb_record *) private;
-
- if (blockcnt < 0)
- return 0;
-
- rb->err = badblocks_list_add(rb->bb_list, *block_nr);
- if (rb->err)
- return BLOCK_ABORT;
- return 0;
- }
-
- /*
- * Reads the current bad blocks from the bad blocks inode.
- */
- errcode_t ext2fs_read_bb_inode(ext2_filsys fs, badblocks_list *bb_list)
- {
- errcode_t retval;
- struct read_bb_record rb;
- struct ext2_inode inode;
- int numblocks;
-
- EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);
-
- if (!*bb_list) {
- retval = ext2fs_read_inode(fs, EXT2_BAD_INO, &inode);
- if (retval)
- return retval;
- numblocks = (inode.i_blocks / (fs->blocksize / 512)) + 20;
- retval = badblocks_list_create(bb_list, numblocks);
- if (retval)
- return retval;
- }
-
- rb.bb_list = *bb_list;
- rb.err = 0;
- retval = ext2fs_block_iterate(fs, EXT2_BAD_INO, 0, 0,
- mark_bad_block, &rb);
- if (retval)
- return retval;
-
- return rb.err;
- }
-
-
-