minix/sys/fs/udf/udf_bswap.h
Jean-Baptiste Boric 9f988b7934 Import makefs from NetBSD
Change-Id: I0ebcc9d0168df9d26cfb0af0fce2bc894ce688af
2015-10-07 12:39:44 +02:00

76 lines
2.1 KiB
C

/* $NetBSD: udf_bswap.h,v 1.8 2009/10/22 21:50:01 bouyer Exp $ */
/*
* Copyright (c) 1998 Manuel Bouyer.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* adapted for UDF by Reinoud Zandijk <reinoud@netbsd.org>
*
*/
#ifndef _FS_UDF_UDF_BSWAP_H_
#define _FS_UDF_UDF_BSWAP_H_
#include <sys/endian.h>
#include <machine/bswap.h>
#include <sys/bswap.h>
/* rest only relevant for big endian machines */
#if (BYTE_ORDER == BIG_ENDIAN)
/* inlines for access to swapped data */
static __inline uint16_t udf_rw16(uint16_t);
static __inline uint32_t udf_rw32(uint32_t);
static __inline uint64_t udf_rw64(uint64_t);
static __inline uint16_t
udf_rw16(uint16_t a)
{
return bswap16(a);
}
static __inline uint32_t
udf_rw32(uint32_t a)
{
return bswap32(a);
}
static __inline uint64_t
udf_rw64(uint64_t a)
{
return bswap64(a);
}
#else
#define udf_rw16(a) ((uint16_t)(a))
#define udf_rw32(a) ((uint32_t)(a))
#define udf_rw64(a) ((uint64_t)(a))
#endif
#endif /* !_FS_UDF_UDF_BSWAP_H_ */