[apple/xnu.git] / bsd / nfs / xdr_subs.h

/*
 * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
 * 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  8.3 (Berkeley) 3/30/95
 * FreeBSD-Id: xdr_subs.h,v 1.9 1997/02/22 09:42:53 peter Exp $
 */
 

#ifndef _NFS_XDR_SUBS_H_
#define _NFS_XDR_SUBS_H_

#include <sys/appleapiopts.h>

#ifdef __APPLE_API_PRIVATE
/*
 * 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_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, 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]); \
}

#endif /* __APPLE_API_PRIVATE */
#endif /* _NFS_XDR_SUBS_H_ */
Commit	Line	Data
1c79356b	1	/*
5d5c5d0d A	2	* Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
5d5c5d0d A	3	*
6601e61a	4	* @APPLE_LICENSE_HEADER_START@
1c79356b	5	*
6601e61a A	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
8f6c56a5	11	*
6601e61a A	12	* This Original Code and all software distributed under the License are
6601e61a A	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
8f6c56a5 A	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
8f6c56a5 A	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
6601e61a A	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
8f6c56a5	19	*
6601e61a	20	* @APPLE_LICENSE_HEADER_END@
1c79356b A	21	*/
	22	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	23	/*
	24	* Copyright (c) 1989, 1993
91447636	25	* The Regents of the University of California. All rights reserved.
1c79356b A	26	*
	27	* This code is derived from software contributed to Berkeley by
	28	* Rick Macklem at The University of Guelph.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. All advertising materials mentioning features or use of this software
	39	* must display the following acknowledgement:
91447636 A	40	* This product includes software developed by the University of
91447636 A	41	* California, Berkeley and its contributors.
1c79356b A	42	* 4. Neither the name of the University nor the names of its contributors
	43	* may be used to endorse or promote products derived from this software
	44	* without specific prior written permission.
	45	*
	46	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	47	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	48	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	49	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	50	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	51	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	52	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	53	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	54	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	55	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	56	* SUCH DAMAGE.
	57	*
91447636	58	* @(#)xdr_subs.h 8.3 (Berkeley) 3/30/95
1c79356b A	59	* FreeBSD-Id: xdr_subs.h,v 1.9 1997/02/22 09:42:53 peter Exp $
1c79356b A	60	*/
91447636	61
1c79356b A	62
	63
	64	#ifndef _NFS_XDR_SUBS_H_
	65	#define _NFS_XDR_SUBS_H_
	66
9bccf70c A	67	#include <sys/appleapiopts.h>
	68
	69	#ifdef __APPLE_API_PRIVATE
1c79356b A	70	/*
	71	* Macros used for conversion to/from xdr representation by nfs...
	72	* These use the MACHINE DEPENDENT routines ntohl, htonl
	73	* As defined by "XDR: External Data Representation Standard" RFC1014
	74	*
	75	* To simplify the implementation, we use ntohl/htonl even on big-endian
	76	* machines, and count on them being `#define'd away. Some of these
	77	* might be slightly more efficient as quad_t copies on a big-endian,
	78	* but we cannot count on their alignment anyway.
	79	*/
	80
	81	#define fxdr_unsigned(t, v) ((t)ntohl((long)(v)))
	82	#define txdr_unsigned(v) (htonl((long)(v)))
	83
	84	#define fxdr_nfsv2time(f, t) { \
	85	(t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
	86	if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
	87	(t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
	88	else \
	89	(t)->tv_nsec = 0; \
	90	}
	91	#define txdr_nfsv2time(f, t) { \
	92	((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
	93	if ((f)->tv_nsec != -1) \
	94	((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
	95	else \
	96	((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
	97	}
	98
	99	#define fxdr_nfsv3time(f, t) { \
	100	(t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
	101	(t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
	102	}
	103	#define txdr_nfsv3time(f, t) { \
	104	((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
	105	((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
	106	}
	107
	108	#define fxdr_hyper(f, t) { \
	109	((long )(t))[_QUAD_HIGHWORD] = ntohl(((long )(f))[0]); \
	110	((long )(t))[_QUAD_LOWWORD] = ntohl(((long )(f))[1]); \
	111	}
	112	#define txdr_hyper(f, t) { \
	113	((long )(t))[0] = htonl(((long )(f))[_QUAD_HIGHWORD]); \
	114	((long )(t))[1] = htonl(((long )(f))[_QUAD_LOWWORD]); \
	115	}
	116
9bccf70c A	117	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	118	#endif /* _NFS_XDR_SUBS_H_ */