1 /*
2 * bsd-endian.h --
3 *
4 * FIXME: This file needs a description here.
5 *
6 * Copyright (c) 1993-2002 The Regents of the University of California.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 * A. Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 * B. Redistributions in binary form must reproduce the above copyright notice,
15 * this list of conditions and the following disclaimer in the documentation
16 * and/or other materials provided with the distribution.
17 * C. Neither the names of the copyright holders nor the names of its
18 * contributors may be used to endorse or promote products derived from this
19 * software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS
22 * IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * @(#) $Header: /usr/mash/src/repository/mash/mash-1/misc/bsd-endian.h,v 1.5 2002/02/03 04:11:42 lim Exp $
34 */
35
36 #ifdef WIN32
37 # include <winsock.h>
38 #else
39 # include <sys/param.h>
40 #endif
41
42 #ifdef __linux__
43 # include <endian.h>
44 #endif
45
46 #ifndef IPPROTO_IP
47 # include <netinet/in.h>
48 #endif
49
50 #ifndef BYTE_ORDER
51 # define LITTLE_ENDIAN 1234
52 # define BIG_ENDIAN 4321
53 # if defined(ultrix) || defined(__alpha) || defined(__i386__) || defined(__i486__) || defined(_X86_)
54 # define BYTE_ORDER LITTLE_ENDIAN
55 # else
56 # define BYTE_ORDER BIG_ENDIAN
57 # endif
58 #endif
59
60 #if BYTE_ORDER == LITTLE_ENDIAN
61 # define SHIFT(n) (24 - (n))
62 #else
63 # define SHIFT(n) (n)
64 #endif
65 #define EXTRACT(v, n) (((v) >> SHIFT(n)) & 0xff)
66 #define SPLICE(v, p, n) (v) |= (p) << SHIFT(n)
67
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