1/*
2 * Copyright (c) 2004, 2006 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)
122#define NTOHS(x) (x)
123#define NTOHLL(x) (x)
124#define HTONL(x) (x)
125#define HTONS(x) (x)
126#define HTONLL(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#ifndef DRIVERKIT
132#include <libkern/_OSByteOrder.h>
133
134#define ntohs(x) __DARWIN_OSSwapInt16(x)
135#define htons(x) __DARWIN_OSSwapInt16(x)
136
137#define ntohl(x) __DARWIN_OSSwapInt32(x)
138#define htonl(x) __DARWIN_OSSwapInt32(x)
139#else /* DRIVERKIT */
140#define ntohs(x) ((__uint16_t)__builtin_bswap16((__uint16_t)(x)))
141#define htons(x) ((__uint16_t)__builtin_bswap16((__uint16_t)(x)))
142
143#define ntohl(x) ((__uint32_t)__builtin_bswap32((__uint32_t)(x)))
144#define htonl(x) ((__uint32_t)__builtin_bswap32((__uint32_t)(x)))
145#endif /* DRIVERKIT */
146
147#if defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
148
149#ifndef DRIVERKIT
150#define ntohll(x) __DARWIN_OSSwapInt64(x)
151#define htonll(x) __DARWIN_OSSwapInt64(x)
152#else /* DRIVERKIT */
153#define ntohll(x) ((__uint64_t)__builtin_bswap64((__uint64_t)(x)))
154#define htonll(x) ((__uint64_t)__builtin_bswap64((__uint64_t)(x)))
155#endif /* DRIVERKIT */
156
157#define NTOHL(x) (x) = ntohl((__uint32_t)x)
158#define NTOHS(x) (x) = ntohs((__uint16_t)x)
159#define NTOHLL(x) (x) = ntohll((__uint64_t)x)
160#define HTONL(x) (x) = htonl((__uint32_t)x)
161#define HTONS(x) (x) = htons((__uint16_t)x)
162#define HTONLL(x) (x) = htonll((__uint64_t)x)
163#endif /* defined(KERNEL) || (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) */
164#endif /* __DARWIN_BYTE_ORDER */
165#endif /* !_SYS__ENDIAN_H_ */
166