/*
 * Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

/*
 * Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright (c) 1987, 1991, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
 */

#ifndef _SYS__ENDIAN_H_
#define	_SYS__ENDIAN_H_

#include <sys/cdefs.h>

/*
 * Macros for network/external number representation conversion.
 */
#if __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN && !defined(lint)
#define	ntohl(x)	(x)
#define	ntohs(x)	(x)
#define	htonl(x)	(x)
#define	htons(x)	(x)

#if	defined(KERNEL) || !defined(_POSIX_C_SOURCE)
#define	NTOHL(x)	(x)
#define	NTOHS(x)	(x)
#define	HTONL(x)	(x)
#define	HTONS(x)	(x)
#endif /* defined(KERNEL) || !defined(_POSIX_C_SOURCE) */

#else

#if !defined(__ASSEMBLER__) 

#include <stdint.h>
#include <machine/byte_order.h>
 
__BEGIN_DECLS
uint16_t	ntohs(uint16_t);
uint16_t	htons(uint16_t);
uint32_t	ntohl(uint32_t);
uint32_t	htonl(uint32_t);
__END_DECLS
#endif /* !defined(__ASSEMBLER__) */

#define ntohs(x)	NXSwapBigShortToHost(x)
#define htons(x)	NXSwapHostShortToBig(x)

#if defined(__LP64__)
#define ntohl(x)	NXSwapBigIntToHost(x)
#define htonl(x)	NXSwapHostIntToBig(x)
#else 
#define ntohl(x)	NXSwapBigLongToHost(x)
#define htonl(x)	NXSwapHostLongToBig(x)
#endif /* defined(__LP64__) */

#if	defined(KERNEL) || !defined(_POSIX_C_SOURCE)
#define	NTOHL(x)	(x) = ntohl((u_long)x)
#define	NTOHS(x)	(x) = ntohs((u_short)x)
#define	HTONL(x)	(x) = htonl((u_long)x)
#define	HTONS(x)	(x) = htons((u_short)x)
#endif /* defined(KERNEL) || !defined(_POSIX_C_SOURCE) */
#endif /* __DARWIN_BYTE_ORDER != __DARWIN_BIG_ENDIAN || defined(lint) */ 
#endif /* !_SYS__ENDIAN_H_ */
