busybox/e2fsprogs/old_e2fsprogs/ext2fs/gen_bitmap.c
Denis Vlasenko c4f623ef2a put small subset of e2fsprogs back in the tree:
lsattr, chattr, fsck. Old e2fsprogs tree is in
e2fsprogs/old_e2fsprogs/*.
2006-12-26 01:30:59 +00:00

50 lines
1.1 KiB
C

/* vi: set sw=4 ts=4: */
/*
* gen_bitmap.c --- Generic bitmap routines that used to be inlined.
*
* Copyright (C) 2001 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"
int ext2fs_mark_generic_bitmap(ext2fs_generic_bitmap bitmap,
__u32 bitno)
{
if ((bitno < bitmap->start) || (bitno > bitmap->end)) {
ext2fs_warn_bitmap2(bitmap, EXT2FS_MARK_ERROR, bitno);
return 0;
}
return ext2fs_set_bit(bitno - bitmap->start, bitmap->bitmap);
}
int ext2fs_unmark_generic_bitmap(ext2fs_generic_bitmap bitmap,
blk_t bitno)
{
if ((bitno < bitmap->start) || (bitno > bitmap->end)) {
ext2fs_warn_bitmap2(bitmap, EXT2FS_UNMARK_ERROR, bitno);
return 0;
}
return ext2fs_clear_bit(bitno - bitmap->start, bitmap->bitmap);
}