[net-next-2.6.git] / fs / ntfs / collate.h

/*
 * collate.h - Defines for NTFS kernel collation handling.  Part of the
 *	       Linux-NTFS project.
 *
 * Copyright (c) 2004 Anton Altaparmakov
 *
 * This program/include file is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program/include file is distributed in the hope that it will be
 * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program (in the main directory of the Linux-NTFS
 * distribution in the file COPYING); if not, write to the Free Software
 * Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _LINUX_NTFS_COLLATE_H
#define _LINUX_NTFS_COLLATE_H

#include "types.h"
#include "volume.h"

static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) {
	int i;

	/*
	 * FIXME:  At the moment we only support COLLATION_BINARY and
	 * COLLATION_NTOFS_ULONG, so we return false for everything else for
	 * now.
	 */
	if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG))
		return false;
	i = le32_to_cpu(cr);
	if (likely(((i >= 0) && (i <= 0x02)) ||
			((i >= 0x10) && (i <= 0x13))))
		return true;
	return false;
}

extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr,
		const void *data1, const int data1_len,
		const void *data2, const int data2_len);

#endif /* _LINUX_NTFS_COLLATE_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* collate.h - Defines for NTFS kernel collation handling. Part of the
	3	* Linux-NTFS project.
	4	*
	5	* Copyright (c) 2004 Anton Altaparmakov
	6	*
	7	* This program/include file is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License as published
	9	* by the Free Software Foundation; either version 2 of the License, or
	10	* (at your option) any later version.
	11	*
	12	* This program/include file is distributed in the hope that it will be
	13	* useful, but WITHOUT ANY WARRANTY; without even the implied warranty
	14	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program (in the main directory of the Linux-NTFS
	19	* distribution in the file COPYING); if not, write to the Free Software
	20	* Foundation,Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	21	*/
	22
	23	#ifndef _LINUX_NTFS_COLLATE_H
	24	#define _LINUX_NTFS_COLLATE_H
	25
	26	#include "types.h"
	27	#include "volume.h"
	28
c49c3111	29	static inline bool ntfs_is_collation_rule_supported(COLLATION_RULE cr) {
1da177e4 LT	30	int i;
	31
	32	/*
	33	* FIXME: At the moment we only support COLLATION_BINARY and
	34	* COLLATION_NTOFS_ULONG, so we return false for everything else for
	35	* now.
	36	*/
	37	if (unlikely(cr != COLLATION_BINARY && cr != COLLATION_NTOFS_ULONG))
c49c3111	38	return false;
1da177e4 LT	39	i = le32_to_cpu(cr);
	40	if (likely(((i >= 0) && (i <= 0x02)) \|\|
	41	((i >= 0x10) && (i <= 0x13))))
c49c3111 RK	42	return true;
c49c3111 RK	43	return false;
1da177e4 LT	44	}
	45
	46	extern int ntfs_collate(ntfs_volume *vol, COLLATION_RULE cr,
	47	const void *data1, const int data1_len,
	48	const void *data2, const int data2_len);
	49
	50	#endif /* _LINUX_NTFS_COLLATE_H */