xdr_subs.h revision 18397
11541Srgrimes/* 21541Srgrimes * Copyright (c) 1989, 1993 31541Srgrimes * The Regents of the University of California. All rights reserved. 41541Srgrimes * 51541Srgrimes * This code is derived from software contributed to Berkeley by 61541Srgrimes * Rick Macklem at The University of Guelph. 71541Srgrimes * 81541Srgrimes * Redistribution and use in source and binary forms, with or without 91541Srgrimes * modification, are permitted provided that the following conditions 101541Srgrimes * are met: 111541Srgrimes * 1. Redistributions of source code must retain the above copyright 121541Srgrimes * notice, this list of conditions and the following disclaimer. 131541Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 141541Srgrimes * notice, this list of conditions and the following disclaimer in the 151541Srgrimes * documentation and/or other materials provided with the distribution. 161541Srgrimes * 3. All advertising materials mentioning features or use of this software 171541Srgrimes * must display the following acknowledgement: 181541Srgrimes * This product includes software developed by the University of 191541Srgrimes * California, Berkeley and its contributors. 201541Srgrimes * 4. Neither the name of the University nor the names of its contributors 211541Srgrimes * may be used to endorse or promote products derived from this software 221541Srgrimes * without specific prior written permission. 231541Srgrimes * 241541Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 251541Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 261541Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 271541Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 281541Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 291541Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 301541Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 311541Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 321541Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 331541Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 341541Srgrimes * SUCH DAMAGE. 351541Srgrimes * 361541Srgrimes * @(#)xdr_subs.h 8.1 (Berkeley) 6/10/93 3718397Snate * $Id: xdr_subs.h,v 1.5 1995/06/27 11:07:03 dfr Exp $ 381541Srgrimes */ 391541Srgrimes 402175Spaul#ifndef _NFS_XDR_SUBS_H_ 412175Spaul#define _NFS_XDR_SUBS_H_ 422175Spaul 431541Srgrimes/* 441541Srgrimes * Macros used for conversion to/from xdr representation by nfs... 451541Srgrimes * These use the MACHINE DEPENDENT routines ntohl, htonl 461541Srgrimes * As defined by "XDR: External Data Representation Standard" RFC1014 471541Srgrimes * 481541Srgrimes * To simplify the implementation, we use ntohl/htonl even on big-endian 491541Srgrimes * machines, and count on them being `#define'd away. Some of these 501541Srgrimes * might be slightly more efficient as quad_t copies on a big-endian, 511541Srgrimes * but we cannot count on their alignment anyway. 521541Srgrimes */ 531541Srgrimes 541541Srgrimes#define fxdr_unsigned(t, v) ((t)ntohl((long)(v))) 551541Srgrimes#define txdr_unsigned(v) (htonl((long)(v))) 561541Srgrimes 579336Sdfr#define fxdr_nfsv2time(f, t) { \ 5818397Snate (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \ 599336Sdfr if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \ 6018397Snate (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \ 615472Sdg else \ 6218397Snate (t)->tv_nsec = 0; \ 631541Srgrimes} 649336Sdfr#define txdr_nfsv2time(f, t) { \ 6518397Snate ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \ 6618397Snate if ((f)->tv_nsec != -1) \ 6718397Snate ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \ 685472Sdg else \ 699336Sdfr ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \ 701541Srgrimes} 711541Srgrimes 729336Sdfr#define fxdr_nfsv3time(f, t) { \ 7318397Snate (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \ 7418397Snate (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \ 751541Srgrimes} 769336Sdfr#define txdr_nfsv3time(f, t) { \ 7718397Snate ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \ 7818397Snate ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \ 791541Srgrimes} 801541Srgrimes 811541Srgrimes#define fxdr_hyper(f, t) { \ 821541Srgrimes ((long *)(t))[_QUAD_HIGHWORD] = ntohl(((long *)(f))[0]); \ 831541Srgrimes ((long *)(t))[_QUAD_LOWWORD] = ntohl(((long *)(f))[1]); \ 841541Srgrimes} 851541Srgrimes#define txdr_hyper(f, t) { \ 861541Srgrimes ((long *)(t))[0] = htonl(((long *)(f))[_QUAD_HIGHWORD]); \ 871541Srgrimes ((long *)(t))[1] = htonl(((long *)(f))[_QUAD_LOWWORD]); \ 881541Srgrimes} 892175Spaul 902175Spaul#endif 91