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/* vi: set sw=4 ts=4: */
/*
* cmp_bitmaps.c --- routines to compare inode and block bitmaps.
*
* Copyright (C) 1995 Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Public
* License.
* %End-Header%
*/
#include <stdio.h>
#include <string.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
#include <time.h>
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#include "ext2_fs.h"
#include "ext2fs.h"
errcode_t ext2fs_compare_block_bitmap(ext2fs_block_bitmap bm1,
ext2fs_block_bitmap bm2)
{
blk_t i;
EXT2_CHECK_MAGIC(bm1, EXT2_ET_MAGIC_BLOCK_BITMAP);
EXT2_CHECK_MAGIC(bm2, EXT2_ET_MAGIC_BLOCK_BITMAP);
if ((bm1->start != bm2->start) ||
(bm1->end != bm2->end) ||
(memcmp(bm1->bitmap, bm2->bitmap,
(size_t) (bm1->end - bm1->start)/8)))
return EXT2_ET_NEQ_BLOCK_BITMAP;
for (i = bm1->end - ((bm1->end - bm1->start) % 8); i <= bm1->end; i++)
if (ext2fs_fast_test_block_bitmap(bm1, i) !=
ext2fs_fast_test_block_bitmap(bm2, i))
return EXT2_ET_NEQ_BLOCK_BITMAP;
return 0;
}
errcode_t ext2fs_compare_inode_bitmap(ext2fs_inode_bitmap bm1,
ext2fs_inode_bitmap bm2)
{
ext2_ino_t i;
EXT2_CHECK_MAGIC(bm1, EXT2_ET_MAGIC_INODE_BITMAP);
EXT2_CHECK_MAGIC(bm2, EXT2_ET_MAGIC_INODE_BITMAP);
if ((bm1->start != bm2->start) ||
(bm1->end != bm2->end) ||
(memcmp(bm1->bitmap, bm2->bitmap,
(size_t) (bm1->end - bm1->start)/8)))
return EXT2_ET_NEQ_INODE_BITMAP;
for (i = bm1->end - ((bm1->end - bm1->start) % 8); i <= bm1->end; i++)
if (ext2fs_fast_test_inode_bitmap(bm1, i) !=
ext2fs_fast_test_inode_bitmap(bm2, i))
return EXT2_ET_NEQ_INODE_BITMAP;
return 0;
}
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