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1/*
2 * Copyright (c) 2000-2006 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/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
29/*
30 * Copyright (c) 1989, 1993
31 * The Regents of the University of California. All rights reserved.
32 *
33 * This code is derived from software contributed to Berkeley by
34 * Rick Macklem at The University of Guelph.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 * notice, this list of conditions and the following disclaimer in the
43 * documentation and/or other materials provided with the distribution.
44 * 3. All advertising materials mentioning features or use of this software
45 * must display the following acknowledgement:
46 * This product includes software developed by the University of
47 * California, Berkeley and its contributors.
48 * 4. Neither the name of the University nor the names of its contributors
49 * may be used to endorse or promote products derived from this software
50 * without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
62 * SUCH DAMAGE.
63 *
64 * @(#)xdr_subs.h 8.3 (Berkeley) 3/30/95
65 * FreeBSD-Id: xdr_subs.h,v 1.9 1997/02/22 09:42:53 peter Exp $
66 */
67
68
69
70#ifndef _NFS_XDR_SUBS_H_
71#define _NFS_XDR_SUBS_H_
72
73#include <sys/appleapiopts.h>
74
75#ifdef __APPLE_API_PRIVATE
76/*
77 * Macros used for conversion to/from xdr representation by nfs...
78 * These use the MACHINE DEPENDENT routines ntohl, htonl
79 * As defined by "XDR: External Data Representation Standard" RFC1014
80 *
81 * To simplify the implementation, we use ntohl/htonl even on big-endian
82 * machines, and count on them being `#define'd away. Some of these
83 * might be slightly more efficient as quad_t copies on a big-endian,
84 * but we cannot count on their alignment anyway.
85 */
86
87#define fxdr_unsigned(t, v) ((t)ntohl((long)(v)))
88#define txdr_unsigned(v) (htonl((long)(v)))
89
90#define fxdr_hyper(f, t) { \
91 ((long *)(t))[_QUAD_HIGHWORD] = ntohl(((long *)(f))[0]); \
92 ((long *)(t))[_QUAD_LOWWORD] = ntohl(((long *)(f))[1]); \
93}
94#define txdr_hyper(f, t) { \
95 ((long *)(t))[0] = htonl(((long *)(f))[_QUAD_HIGHWORD]); \
96 ((long *)(t))[1] = htonl(((long *)(f))[_QUAD_LOWWORD]); \
97}
98
99#endif /* __APPLE_API_PRIVATE */
100#endif /* _NFS_XDR_SUBS_H_ */