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

/*
 * 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_ */
Commit	Line	Data
ccc36f2f	1	/*
91447636 A	2	* Copyright (c) 2004 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
37839358 A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
91447636	11	*
37839358 A	12	* This Original Code and all software distributed under the License are
37839358 A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
91447636 A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
91447636 A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
37839358 A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
91447636 A	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22
	23	/*
	24	* Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
ccc36f2f A	25	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
	26	*
	27	* @APPLE_LICENSE_HEADER_START@
	28	*
37839358 A	29	* The contents of this file constitute Original Code as defined in and
	30	* are subject to the Apple Public Source License Version 1.1 (the
	31	* "License"). You may not use this file except in compliance with the
	32	* License. Please obtain a copy of the License at
	33	* http://www.apple.com/publicsource and read it before using this file.
ccc36f2f	34	*
37839358 A	35	* This Original Code and all software distributed under the License are
37839358 A	36	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
ccc36f2f A	37	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
ccc36f2f A	38	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
37839358 A	39	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	40	* License for the specific language governing rights and limitations
	41	* under the License.
ccc36f2f A	42	*
	43	* @APPLE_LICENSE_HEADER_END@
	44	*/
ccc36f2f	45	/*
91447636	46	* Copyright (c) 1987, 1991, 1993
ccc36f2f A	47	* The Regents of the University of California. All rights reserved.
ccc36f2f A	48	*
ccc36f2f A	49	* Redistribution and use in source and binary forms, with or without
	50	* modification, are permitted provided that the following conditions
	51	* are met:
	52	* 1. Redistributions of source code must retain the above copyright
	53	* notice, this list of conditions and the following disclaimer.
	54	* 2. Redistributions in binary form must reproduce the above copyright
	55	* notice, this list of conditions and the following disclaimer in the
	56	* documentation and/or other materials provided with the distribution.
	57	* 3. All advertising materials mentioning features or use of this software
	58	* must display the following acknowledgement:
	59	* This product includes software developed by the University of
	60	* California, Berkeley and its contributors.
	61	* 4. Neither the name of the University nor the names of its contributors
	62	* may be used to endorse or promote products derived from this software
	63	* without specific prior written permission.
	64	*
	65	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	66	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	67	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	68	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	69	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	70	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	71	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	72	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	73	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	74	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	75	* SUCH DAMAGE.
ccc36f2f	76	*/
ccc36f2f	77
91447636 A	78	#ifndef _SYS__ENDIAN_H_
	79	#define _SYS__ENDIAN_H_
	80
	81	#include <sys/cdefs.h>
ccc36f2f	82
ccc36f2f	83	/*
91447636	84	* Macros for network/external number representation conversion.
ccc36f2f	85	*/
91447636 A	86	#if __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN && !defined(lint)
	87	#define ntohl(x) (x)
	88	#define ntohs(x) (x)
	89	#define htonl(x) (x)
	90	#define htons(x) (x)
ccc36f2f	91
91447636 A	92	#if defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE)
	93	#define NTOHL(x) (x)
	94	#define NTOHS(x) (x)
	95	#define HTONL(x) (x)
	96	#define HTONS(x) (x)
	97	#endif /* defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE) */
ccc36f2f	98
91447636	99	#else
ccc36f2f	100
91447636	101	#if !defined(__ASSEMBLER__)
ccc36f2f	102
91447636 A	103	#include <stdint.h>
	104	#include <machine/byte_order.h>
	105
ccc36f2f	106	__BEGIN_DECLS
91447636 A	107	uint16_t ntohs(uint16_t);
	108	uint16_t htons(uint16_t);
	109	uint32_t ntohl(uint32_t);
	110	uint32_t htonl(uint32_t);
ccc36f2f	111	__END_DECLS
91447636 A	112	#endif /* !defined(__ASSEMBLER__) */
	113
	114	#define ntohs(x) NXSwapBigShortToHost(x)
	115	#define htons(x) NXSwapHostShortToBig(x)
ccc36f2f	116
91447636 A	117	#if defined(__LP64__)
	118	#define ntohl(x) NXSwapBigIntToHost(x)
	119	#define htonl(x) NXSwapHostIntToBig(x)
	120	#else
	121	#define ntohl(x) NXSwapBigLongToHost(x)
	122	#define htonl(x) NXSwapHostLongToBig(x)
	123	#endif /* defined(__LP64__) */
ccc36f2f	124
91447636 A	125	#if defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE)
	126	#define NTOHL(x) (x) = ntohl((u_long)x)
	127	#define NTOHS(x) (x) = ntohs((u_short)x)
	128	#define HTONL(x) (x) = htonl((u_long)x)
	129	#define HTONS(x) (x) = htons((u_short)x)
	130	#endif /* defined(KERNEL) \|\| !defined(_POSIX_C_SOURCE) */
	131	#endif /* __DARWIN_BYTE_ORDER != __DARWIN_BIG_ENDIAN \|\| defined(lint) */
	132	#endif /* !_SYS__ENDIAN_H_ */