diff options
Diffstat (limited to 'cpukit/libnetworking/nfs/xdr_subs.h')
| -rw-r--r-- | cpukit/libnetworking/nfs/xdr_subs.h | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/cpukit/libnetworking/nfs/xdr_subs.h b/cpukit/libnetworking/nfs/xdr_subs.h new file mode 100644 index 0000000000..62358a57ea --- /dev/null +++ b/cpukit/libnetworking/nfs/xdr_subs.h @@ -0,0 +1,90 @@ +/* + * 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. + * + * @(#)xdr_subs.h 8.3 (Berkeley) 3/30/95 + * $FreeBSD: src/sys/nfs/xdr_subs.h,v 1.15 2005/01/07 01:45:50 imp Exp $ + */ + +/* + * $Id$ + */ + +#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) { \ + (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; \ +} +#define txdr_nfsv2time(f, t) { \ + ((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; \ +} + +#define fxdr_nfsv3time(f, t) { \ + (t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \ + (t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \ +} +#define txdr_nfsv3time(f, t) { \ + ((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \ + ((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \ +} + +#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 |