2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
5 * This code is derived from software contributed to Berkeley by
6 * Rick Macklem at The University of Guelph.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 4. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #ifndef _NFS_XDR_SUBS_H_
36 #define _NFS_XDR_SUBS_H_
39 * Macros used for conversion to/from xdr representation by nfs...
40 * These use the MACHINE DEPENDENT routines ntohl, htonl
41 * As defined by "XDR: External Data Representation Standard" RFC1014
43 * To simplify the implementation, we use ntohl/htonl even on big-endian
44 * machines, and count on them being `#define'd away. Some of these
45 * might be slightly more efficient as quad_t copies on a big-endian,
46 * but we cannot count on their alignment anyway.
49 #define fxdr_unsigned(t, v) ((t)ntohl((int32_t)(v)))
50 #define txdr_unsigned(v) (htonl((int32_t)(v)))
52 #define fxdr_nfsv2time(f, t) do { \
53 (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
54 if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
55 (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
60 #define txdr_nfsv2time(f, t) do { \
61 ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
62 if ((f)->tv_nsec != -1) \
63 ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
65 ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
68 #define fxdr_nfsv3time(f, t) do { \
69 (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
70 (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
73 #define txdr_nfsv3time(f, t) do { \
74 ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
75 ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
78 #define fxdr_nfsv4time(f, t) do { \
79 (t)->tv_sec = ntohl(((struct nfsv4_time *)(f))->nfsv4_sec); \
80 (t)->tv_nsec = (ntohl(((struct nfsv4_time *)(f))->nfsv4_nsec) % \
84 #define txdr_nfsv4time(f, t) do { \
85 ((struct nfsv4_time *)(t))->nfsv4_highsec = 0; \
86 ((struct nfsv4_time *)(t))->nfsv4_sec = htonl((f)->tv_sec); \
87 ((struct nfsv4_time *)(t))->nfsv4_nsec = htonl((f)->tv_nsec); \
90 #define fxdr_hyper(f) \
91 ((((u_quad_t)ntohl(((u_int32_t *)(f))[0])) << 32) | \
92 (u_quad_t)(ntohl(((u_int32_t *)(f))[1])))
94 #define txdr_hyper(f, t) do { \
95 ((u_int32_t *)(t))[0] = htonl((u_int32_t)((f) >> 32)); \
96 ((u_int32_t *)(t))[1] = htonl((u_int32_t)((f) & 0xffffffff)); \
99 #endif /* _NFS_XDR_SUBS_H_ */