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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 |