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1/*
2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
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.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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.
19 *
20 * @APPLE_LICENSE_HEADER_END@
21 */
22/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
23/*
24 * Copyright (c) 1989, 1993
25 * The Regents of the University of California. All rights reserved.
26 *
27 * The NEXTSTEP Software License Agreement specifies the terms
28 * and conditions for redistribution.
29 *
30 * This code is derived from software contributed to Berkeley by
31 * Rick Macklem at The University of Guelph.
32 *
33 * Redistribution and use in source and binary forms, with or without
34 * modification, are permitted provided that the following conditions
35 * are met:
36 * 1. Redistributions of source code must retain the above copyright
37 * notice, this list of conditions and the following disclaimer.
38 * 2. Redistributions in binary form must reproduce the above copyright
39 * notice, this list of conditions and the following disclaimer in the
40 * documentation and/or other materials provided with the distribution.
41 * 3. All advertising materials mentioning features or use of this software
42 * must display the following acknowledgement:
43 * This product includes software developed by the University of
44 * California, Berkeley and its contributors.
45 * 4. Neither the name of the University nor the names of its contributors
46 * may be used to endorse or promote products derived from this software
47 * without specific prior written permission.
48 *
49 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
50 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
51 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
52 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
53 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
54 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
55 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
56 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
57 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
58 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
59 * SUCH DAMAGE.
60 *
61 * @(#)xdr_subs.h 8.3 (Berkeley) 3/30/95
62 * FreeBSD-Id: xdr_subs.h,v 1.9 1997/02/22 09:42:53 peter Exp $
63 */
64
65
66#ifndef _NFS_XDR_SUBS_H_
67#define _NFS_XDR_SUBS_H_
68
69/*
70 * Macros used for conversion to/from xdr representation by nfs...
71 * These use the MACHINE DEPENDENT routines ntohl, htonl
72 * As defined by "XDR: External Data Representation Standard" RFC1014
73 *
74 * To simplify the implementation, we use ntohl/htonl even on big-endian
75 * machines, and count on them being `#define'd away. Some of these
76 * might be slightly more efficient as quad_t copies on a big-endian,
77 * but we cannot count on their alignment anyway.
78 */
79
80#define fxdr_unsigned(t, v) ((t)ntohl((long)(v)))
81#define txdr_unsigned(v) (htonl((long)(v)))
82
83#define fxdr_nfsv2time(f, t) { \
84 (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
85 if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
86 (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
87 else \
88 (t)->tv_nsec = 0; \
89}
90#define txdr_nfsv2time(f, t) { \
91 ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
92 if ((f)->tv_nsec != -1) \
93 ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
94 else \
95 ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
96}
97
98#define fxdr_nfsv3time(f, t) { \
99 (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
100 (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
101}
102#define txdr_nfsv3time(f, t) { \
103 ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
104 ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
105}
106
107#define fxdr_hyper(f, t) { \
108 ((long *)(t))[_QUAD_HIGHWORD] = ntohl(((long *)(f))[0]); \
109 ((long *)(t))[_QUAD_LOWWORD] = ntohl(((long *)(f))[1]); \
110}
111#define txdr_hyper(f, t) { \
112 ((long *)(t))[0] = htonl(((long *)(f))[_QUAD_HIGHWORD]); \
113 ((long *)(t))[1] = htonl(((long *)(f))[_QUAD_LOWWORD]); \
114}
115
116#endif