1 /* $NetBSD: xdr_subs.h,v 1.7 1994/06/29 06:42:45 cgd Exp $ */ 2 3 /* 4 * Copyright (c) 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Rick Macklem at The University of Guelph. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)xdr_subs.h 8.1 (Berkeley) 6/10/93 39 */ 40 41 /* 42 * Macros used for conversion to/from xdr representation by nfs... 43 * These use the MACHINE DEPENDENT routines ntohl, htonl 44 * As defined by "XDR: External Data Representation Standard" RFC1014 45 * 46 * To simplify the implementation, we use ntohl/htonl even on big-endian 47 * machines, and count on them being `#define'd away. Some of these 48 * might be slightly more efficient as quad_t copies on a big-endian, 49 * but we cannot count on their alignment anyway. 50 */ 51 52 #define fxdr_unsigned(t, v) ((t)ntohl((long)(v))) 53 #define txdr_unsigned(v) (htonl((long)(v))) 54 55 #define fxdr_nfstime(f, t) { \ 56 (t)->ts_sec = ntohl(((struct nfsv2_time *)(f))->nfs_sec); \ 57 (t)->ts_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfs_usec); \ 58 } 59 #define txdr_nfstime(f, t) { \ 60 ((struct nfsv2_time *)(t))->nfs_sec = htonl((f)->ts_sec); \ 61 ((struct nfsv2_time *)(t))->nfs_usec = htonl((f)->ts_nsec) / 1000; \ 62 } 63 64 #define fxdr_nqtime(f, t) { \ 65 (t)->ts_sec = ntohl(((struct nqnfs_time *)(f))->nq_sec); \ 66 (t)->ts_nsec = ntohl(((struct nqnfs_time *)(f))->nq_nsec); \ 67 } 68 #define txdr_nqtime(f, t) { \ 69 ((struct nqnfs_time *)(t))->nq_sec = htonl((f)->ts_sec); \ 70 ((struct nqnfs_time *)(t))->nq_nsec = htonl((f)->ts_nsec); \ 71 } 72 73 #define fxdr_hyper(f, t) { \ 74 ((long *)(t))[_QUAD_HIGHWORD] = ntohl(((long *)(f))[0]); \ 75 ((long *)(t))[_QUAD_LOWWORD] = ntohl(((long *)(f))[1]); \ 76 } 77 #define txdr_hyper(f, t) { \ 78 ((long *)(t))[0] = htonl(((long *)(f))[_QUAD_HIGHWORD]); \ 79 ((long *)(t))[1] = htonl(((long *)(f))[_QUAD_LOWWORD]); \ 80 } 81