Return to xdr_subs.h CVS log

Up to [local] / sys / nfs

Annotation of sys/nfs/xdr_subs.h, Revision 1.1

1.1     ! nbrk        1: /*     $OpenBSD: xdr_subs.h,v 1.8 2003/06/02 23:28:20 millert Exp $    */
        !             2: /*     $NetBSD: xdr_subs.h,v 1.11 1996/02/18 11:54:12 fvdl Exp $       */
        !             3:
        !             4: /*
        !             5:  * Copyright (c) 1989, 1993
        !             6:  *     The Regents of the University of California.  All rights reserved.
        !             7:  *
        !             8:  * This code is derived from software contributed to Berkeley by
        !             9:  * Rick Macklem at The University of Guelph.
        !            10:  *
        !            11:  * Redistribution and use in source and binary forms, with or without
        !            12:  * modification, are permitted provided that the following conditions
        !            13:  * are met:
        !            14:  * 1. Redistributions of source code must retain the above copyright
        !            15:  *    notice, this list of conditions and the following disclaimer.
        !            16:  * 2. Redistributions in binary form must reproduce the above copyright
        !            17:  *    notice, this list of conditions and the following disclaimer in the
        !            18:  *    documentation and/or other materials provided with the distribution.
        !            19:  * 3. Neither the name of the University nor the names of its contributors
        !            20:  *    may be used to endorse or promote products derived from this software
        !            21:  *    without specific prior written permission.
        !            22:  *
        !            23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            33:  * SUCH DAMAGE.
        !            34:  *
        !            35:  *     @(#)xdr_subs.h  8.3 (Berkeley) 3/30/95
        !            36:  */
        !            37:
        !            38:
        !            39: #ifndef _NFS_XDR_SUBS_H_
        !            40: #define _NFS_XDR_SUBS_H_
        !            41:
        !            42: /*
        !            43:  * Macros used for conversion to/from xdr representation by nfs...
        !            44:  * These use the MACHINE DEPENDENT routines ntohl, htonl
        !            45:  * As defined by "XDR: External Data Representation Standard" RFC1014
        !            46:  *
        !            47:  * To simplify the implementation, we use ntohl/htonl even on big-endian
        !            48:  * machines, and count on them being `#define'd away.  Some of these
        !            49:  * might be slightly more efficient as quad_t copies on a big-endian,
        !            50:  * but we cannot count on their alignment anyway.
        !            51:  */
        !            52:
        !            53: #define        fxdr_unsigned(t, v)     ((t)ntohl((int32_t)(v)))
        !            54: #define        txdr_unsigned(v)        (htonl((int32_t)(v)))
        !            55:
        !            56: #define        fxdr_nfsv2time(f, t) { \
        !            57:        (t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
        !            58:        if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
        !            59:                (t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
        !            60:        else \
        !            61:                (t)->tv_nsec = 0; \
        !            62: }
        !            63: #define        txdr_nfsv2time(f, t) { \
        !            64:        ((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
        !            65:        if ((f)->tv_nsec != -1) \
        !            66:                ((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
        !            67:        else \
        !            68:                ((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
        !            69: }
        !            70:
        !            71: #define        fxdr_nfsv3time(f, t) { \
        !            72:        (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
        !            73:        (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
        !            74: }
        !            75: #define        txdr_nfsv3time(f, t) { \
        !            76:        ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
        !            77:        ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
        !            78: }
        !            79:
        !            80: #define        fxdr_hyper(f)                                           \
        !            81:         ((((u_quad_t)ntohl(((u_int32_t *)(f))[0])) << 32) |    \
        !            82:         (u_quad_t)(ntohl(((u_int32_t *)(f))[1])))
        !            83:
        !            84:
        !            85: #define        txdr_hyper(f, t) {                                              \
        !            86:        ((u_int32_t *)(t))[0] = htonl((u_int32_t)((f) >> 32));          \
        !            87:        ((u_int32_t *)(t))[1] = htonl((u_int32_t)((f) & 0xffffffff));   \
        !            88: }
        !            89:
        !            90: #endif