1/*
  2 * Copyright (c) 2004, 2006, 2023 Apple Computer, Inc. All rights reserved.
  3 *
  4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  5 *
  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 License
 10 * may not be used to create, or enable the creation or redistribution of,
 11 * unlawful or unlicensed copies of an Apple operating system, or to
 12 * circumvent, violate, or enable the circumvention or violation of, any
 13 * terms of an Apple operating system software license agreement.
 14 *
 15 * Please obtain a copy of the License at
 16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 17 *
 18 * The Original Code and all software distributed under the License are
 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 23 * Please see the License for the specific language governing rights and
 24 * limitations under the License.
 25 *
 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 27 */
 28
 29/*
 30 * Copyright (c) 1995 NeXT Computer, Inc. All rights reserved.
 31 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 32 *
 33 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 34 *
 35 * This file contains Original Code and/or Modifications of Original Code
 36 * as defined in and that are subject to the Apple Public Source License
 37 * Version 2.0 (the 'License'). You may not use this file except in
 38 * compliance with the License. The rights granted to you under the License
 39 * may not be used to create, or enable the creation or redistribution of,
 40 * unlawful or unlicensed copies of an Apple operating system, or to
 41 * circumvent, violate, or enable the circumvention or violation of, any
 42 * terms of an Apple operating system software license agreement.
 43 *
 44 * Please obtain a copy of the License at
 45 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 46 *
 47 * The Original Code and all software distributed under the License are
 48 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 49 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 50 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 51 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 52 * Please see the License for the specific language governing rights and
 53 * limitations under the License.
 54 *
 55 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
 56 */
 57/*
 58 * Copyright (c) 1987, 1991, 1993
 59 *	The Regents of the University of California.  All rights reserved.
 60 *
 61 * Redistribution and use in source and binary forms, with or without
 62 * modification, are permitted provided that the following conditions
 63 * are met:
 64 * 1. Redistributions of source code must retain the above copyright
 65 *    notice, this list of conditions and the following disclaimer.
 66 * 2. Redistributions in binary form must reproduce the above copyright
 67 *    notice, this list of conditions and the following disclaimer in the
 68 *    documentation and/or other materials provided with the distribution.
 69 * 3. All advertising materials mentioning features or use of this software
 70 *    must display the following acknowledgement:
 71 *	This product includes software developed by the University of
 72 *	California, Berkeley and its contributors.
 73 * 4. Neither the name of the University nor the names of its contributors
 74 *    may be used to endorse or promote products derived from this software
 75 *    without specific prior written permission.
 76 *
 77 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 78 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 79 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 80 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 81 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 82 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 83 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 84 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 85 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 86 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 87 * SUCH DAMAGE.
 88 */
 89
 90#ifndef _SYS__ENDIAN_H_
 91#define _SYS__ENDIAN_H_
 92
 93#include <sys/cdefs.h>
 94#include <machine/_endian.h>
 95
 96/*
 97 * Macros for network/external number representation conversion.
 98 */
 99
100#if defined(lint)
101
102__BEGIN_DECLS
103__uint16_t      ntohs(__uint16_t);
104__uint16_t      htons(__uint16_t);
105__uint32_t      ntohl(__uint32_t);
106__uint32_t      htonl(__uint32_t);
107__END_DECLS
108
109#elif __DARWIN_BYTE_ORDER == __DARWIN_BIG_ENDIAN
110
111#define ntohl(x)        ((__uint32_t)(x))
112#define ntohs(x)        ((__uint16_t)(x))
113#define htonl(x)        ((__uint32_t)(x))
114#define htons(x)        ((__uint16_t)(x))
115
116#if     defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
117
118#define ntohll(x)       ((__uint64_t)(x))
119#define htonll(x)       ((__uint64_t)(x))
120
121#define NTOHL(x)        (x) = (x)
122#define NTOHS(x)        (x) = (x)
123#define NTOHLL(x)       (x) = (x)
124#define HTONL(x)        (x) = (x)
125#define HTONS(x)        (x) = (x)
126#define HTONLL(x)       (x) = (x)
127#endif /* defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */
128
129#else   /* __DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN */
130
131#include <libkern/_OSByteOrder.h>
132
133#define ntohs(x)        __DARWIN_OSSwapInt16(x)
134#define htons(x)        __DARWIN_OSSwapInt16(x)
135
136#define ntohl(x)        __DARWIN_OSSwapInt32(x)
137#define htonl(x)        __DARWIN_OSSwapInt32(x)
138
139#if     defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
140
141#define ntohll(x)       __DARWIN_OSSwapInt64(x)
142#define htonll(x)       __DARWIN_OSSwapInt64(x)
143
144#define NTOHL(x)        (x) = ntohl((__uint32_t)x)
145#define NTOHS(x)        (x) = ntohs((__uint16_t)x)
146#define NTOHLL(x)       (x) = ntohll((__uint64_t)x)
147#define HTONL(x)        (x) = htonl((__uint32_t)x)
148#define HTONS(x)        (x) = htons((__uint16_t)x)
149#define HTONLL(x)       (x) = htonll((__uint64_t)x)
150#endif /* defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */
151#endif /* __DARWIN_BYTE_ORDER */
152#endif /* !_SYS__ENDIAN_H_ */