[apple/xnu.git] / bsd / sys / _endian.h

/*
 * Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
 * 
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * Please see the License for the specific language governing rights and 
 * limitations under the License.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
 */

/*
 * Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * Please see the License for the specific language governing rights and 
 * limitations under the License.
 *
 * @APPLE_LICENSE_OSREFERENCE_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_ */
Commit	Line	Data
ccc36f2f	1	/*
8ad349bb	2	* Copyright (c) 2006 Apple Computer, Inc. All Rights Reserved.
91447636	3	*
8ad349bb	4	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
91447636	5	*
8ad349bb A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the
	10	* License may not be used to create, or enable the creation or
	11	* redistribution of, unlawful or unlicensed copies of an Apple operating
	12	* system, or to circumvent, violate, or enable the circumvention or
	13	* violation of, any terms of an Apple operating system software license
	14	* agreement.
	15	*
	16	* Please obtain a copy of the License at
	17	* http://www.opensource.apple.com/apsl/ and read it before using this
	18	* file.
	19	*
	20	* The Original Code and all software distributed under the License are
	21	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	22	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	23	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	24	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	25	* Please see the License for the specific language governing rights and
	26	* limitations under the License.
	27	*
	28	* @APPLE_LICENSE_OSREFERENCE_HEADER_END@
91447636 A	29	*/
	30
	31	/*
	32	* Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
ccc36f2f A	33	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
ccc36f2f A	34	*
8ad349bb	35	* @APPLE_LICENSE_OSREFERENCE_HEADER_START@
ccc36f2f	36	*
8ad349bb A	37	* This file contains Original Code and/or Modifications of Original Code
	38	* as defined in and that are subject to the Apple Public Source License
	39	* Version 2.0 (the 'License'). You may not use this file except in
	40	* compliance with the License. The rights granted to you under the
	41	* License may not be used to create, or enable the creation or
	42	* redistribution of, unlawful or unlicensed copies of an Apple operating
	43	* system, or to circumvent, violate, or enable the circumvention or
	44	* violation of, any terms of an Apple operating system software license
	45	* agreement.
	46	*
	47	* Please obtain a copy of the License at
	48	* http://www.opensource.apple.com/apsl/ and read it before using this
	49	* file.
	50	*
	51	* The Original Code and all software distributed under the License are
	52	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	53	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	54	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	55	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	56	* Please see the License for the specific language governing rights and
	57	* limitations under the License.
	58	*
	59	* @APPLE_LICENSE_OSREFERENCE_HEADER_END@
ccc36f2f	60	*/
ccc36f2f	61	/*
91447636	62	* Copyright (c) 1987, 1991, 1993
ccc36f2f A	63	* The Regents of the University of California. All rights reserved.
ccc36f2f A	64	*
ccc36f2f A	65	* Redistribution and use in source and binary forms, with or without
	66	* modification, are permitted provided that the following conditions
	67	* are met:
	68	* 1. Redistributions of source code must retain the above copyright
	69	* notice, this list of conditions and the following disclaimer.
	70	* 2. Redistributions in binary form must reproduce the above copyright
	71	* notice, this list of conditions and the following disclaimer in the
	72	* documentation and/or other materials provided with the distribution.
	73	* 3. All advertising materials mentioning features or use of this software
	74	* must display the following acknowledgement:
	75	* This product includes software developed by the University of
	76	* California, Berkeley and its contributors.
	77	* 4. Neither the name of the University nor the names of its contributors
	78	* may be used to endorse or promote products derived from this software
	79	* without specific prior written permission.
	80	*
	81	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	82	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	83	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	84	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	85	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	86	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	87	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	88	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	89	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	90	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	91	* SUCH DAMAGE.
ccc36f2f	92	*/
ccc36f2f	93
91447636 A	94	#ifndef _SYS__ENDIAN_H_
	95	#define _SYS__ENDIAN_H_
	96
	97	#include <sys/cdefs.h>
ccc36f2f	98
ccc36f2f	99	/*
91447636	100	* Macros for network/external number representation conversion.
ccc36f2f	101	*/
8ad349bb A	102	#if __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN && !defined(lint)
	103	#define ntohl(x) (x)
	104	#define ntohs(x) (x)
	105	#define htonl(x) (x)
	106	#define htons(x) (x)
	107
	108	#if defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE)
	109	#define NTOHL(x) (x)
	110	#define NTOHS(x) (x)
	111	#define HTONL(x) (x)
	112	#define HTONS(x) (x)
	113	#endif /* defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE) */
	114
	115	#else
	116
91447636	117	#if !defined(__ASSEMBLER__)
ccc36f2f	118
91447636	119	#include <stdint.h>
8ad349bb	120	#include <machine/byte_order.h>
91447636	121
ccc36f2f	122	__BEGIN_DECLS
91447636 A	123	uint16_t ntohs(uint16_t);
	124	uint16_t htons(uint16_t);
	125	uint32_t ntohl(uint32_t);
	126	uint32_t htonl(uint32_t);
ccc36f2f	127	__END_DECLS
91447636 A	128	#endif /* !defined(__ASSEMBLER__) */
91447636 A	129
8ad349bb A	130	#define ntohs(x) NXSwapBigShortToHost(x)
8ad349bb A	131	#define htons(x) NXSwapHostShortToBig(x)
ccc36f2f	132
8ad349bb A	133	#if defined(__LP64__)
	134	#define ntohl(x) NXSwapBigIntToHost(x)
	135	#define htonl(x) NXSwapHostIntToBig(x)
	136	#else
	137	#define ntohl(x) NXSwapBigLongToHost(x)
	138	#define htonl(x) NXSwapHostLongToBig(x)
	139	#endif /* defined(__LP64__) */
ccc36f2f	140
91447636 A	141	#if defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE)
	142	#define NTOHL(x) (x) = ntohl((u_long)x)
	143	#define NTOHS(x) (x) = ntohs((u_short)x)
	144	#define HTONL(x) (x) = htonl((u_long)x)
	145	#define HTONS(x) (x) = htons((u_short)x)
	146	#endif /* defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE) */
8ad349bb	147	#endif /* __DARWIN_BYTE_ORDER != __DARWIN_BIG_ENDIAN \|\| defined(lint) */
91447636	148	#endif /* !_SYS__ENDIAN_H_ */