home *** CD-ROM | disk | FTP | other *** search
- /* $NetBSD: xdr_subs.h,v 1.8 1995/01/13 16:15:02 mycroft Exp $ */
-
- /*
- * Copyright (c) 1989, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Rick Macklem at The University of Guelph.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)xdr_subs.h 8.1 (Berkeley) 6/10/93
- */
-
- /*
- * Macros used for conversion to/from xdr representation by nfs...
- * These use the MACHINE DEPENDENT routines ntohl, htonl
- * As defined by "XDR: External Data Representation Standard" RFC1014
- *
- * To simplify the implementation, we use ntohl/htonl even on big-endian
- * machines, and count on them being `#define'd away. Some of these
- * might be slightly more efficient as quad_t copies on a big-endian,
- * but we cannot count on their alignment anyway.
- */
-
- #define fxdr_unsigned(t, v) ((t)ntohl((long)(v)))
- #define txdr_unsigned(v) (htonl((long)(v)))
-
- #define fxdr_nfstime(f, t) { \
- (t)->ts_sec = ntohl(((struct nfsv2_time *)(f))->nfs_sec); \
- if (((struct nfsv2_time *)(f))->nfs_usec != 0xffffffff) \
- (t)->ts_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfs_usec); \
- else \
- (t)->ts_nsec = 0; \
- }
- #define txdr_nfstime(f, t) { \
- ((struct nfsv2_time *)(t))->nfs_sec = htonl((f)->ts_sec); \
- ((struct nfsv2_time *)(t))->nfs_usec = htonl((f)->ts_nsec) / 1000; \
- }
-
- #define fxdr_nqtime(f, t) { \
- (t)->ts_sec = ntohl(((struct nqnfs_time *)(f))->nq_sec); \
- (t)->ts_nsec = ntohl(((struct nqnfs_time *)(f))->nq_nsec); \
- }
- #define txdr_nqtime(f, t) { \
- ((struct nqnfs_time *)(t))->nq_sec = htonl((f)->ts_sec); \
- ((struct nqnfs_time *)(t))->nq_nsec = htonl((f)->ts_nsec); \
- }
-
- #define fxdr_hyper(f, t) { \
- ((long *)(t))[_QUAD_HIGHWORD] = ntohl(((long *)(f))[0]); \
- ((long *)(t))[_QUAD_LOWWORD] = ntohl(((long *)(f))[1]); \
- }
- #define txdr_hyper(f, t) { \
- ((long *)(t))[0] = htonl(((long *)(f))[_QUAD_HIGHWORD]); \
- ((long *)(t))[1] = htonl(((long *)(f))[_QUAD_LOWWORD]); \
- }
-