/* $NetBSD: xdr_subs.h,v 1.1.1.1 2013/09/30 07:19:42 dholland 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. * 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. * * FreeBSD: head/sys/fs/nfs/xdr_subs.h 191783 2009-05-04 15:23:58Z rmacklem * $NetBSD: xdr_subs.h,v 1.1.1.1 2013/09/30 07:19:42 dholland Exp $ */ #ifndef _NFS_XDR_SUBS_H_ #define _NFS_XDR_SUBS_H_ /* * 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((int32_t)(v))) #define txdr_unsigned(v) (htonl((int32_t)(v))) #define fxdr_nfsv2time(f, t) do { \ (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \ if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \ (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \ else \ (t)->tv_nsec = 0; \ } while (0) #define txdr_nfsv2time(f, t) do { \ ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \ if ((f)->tv_nsec != -1) \ ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \ else \ ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \ } while (0) #define fxdr_nfsv3time(f, t) do { \ (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \ (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \ } while (0) #define txdr_nfsv3time(f, t) do { \ ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \ ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \ } while (0) #define fxdr_nfsv4time(f, t) do { \ (t)->tv_sec = ntohl(((struct nfsv4_time *)(f))->nfsv4_sec); \ (t)->tv_nsec = (ntohl(((struct nfsv4_time *)(f))->nfsv4_nsec) % \ 1000000000); \ } while (0) #define txdr_nfsv4time(f, t) do { \ ((struct nfsv4_time *)(t))->nfsv4_highsec = 0; \ ((struct nfsv4_time *)(t))->nfsv4_sec = htonl((f)->tv_sec); \ ((struct nfsv4_time *)(t))->nfsv4_nsec = htonl((f)->tv_nsec); \ } while (0) #define fxdr_hyper(f) \ ((((u_quad_t)ntohl(((u_int32_t *)(f))[0])) << 32) | \ (u_quad_t)(ntohl(((u_int32_t *)(f))[1]))) #define txdr_hyper(f, t) do { \ ((u_int32_t *)(t))[0] = htonl((u_int32_t)((f) >> 32)); \ ((u_int32_t *)(t))[1] = htonl((u_int32_t)((f) & 0xffffffff)); \ } while (0) #endif /* _NFS_XDR_SUBS_H_ */