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

/*
 * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The 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, QUIET ENJOYMENT 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.
 *
 * The NEXTSTEP Software License Agreement specifies the terms
 * and conditions for redistribution.
 *
 * 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	/*
9bccf70c	2	* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
1c79356b A	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
43866e37	6	* Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
1c79356b	7	*
43866e37 A	8	* This file contains Original Code and/or Modifications of Original Code
	9	* as defined in and that are subject to the Apple Public Source License
	10	* Version 2.0 (the 'License'). You may not use this file except in
	11	* compliance with the License. Please obtain a copy of the License at
	12	* http://www.opensource.apple.com/apsl/ and read it before using this
	13	* file.
	14	*
	15	* The Original Code and all software distributed under the License are
	16	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
1c79356b A	17	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
1c79356b A	18	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
43866e37 A	19	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	20	* Please see the License for the specific language governing rights and
	21	* limitations under the License.
1c79356b A	22	*
	23	* @APPLE_LICENSE_HEADER_END@
	24	*/
	25	/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
	26	/*
	27	* Copyright (c) 1989, 1993
	28	* The Regents of the University of California. All rights reserved.
	29	*
	30	* The NEXTSTEP Software License Agreement specifies the terms
	31	* and conditions for redistribution.
	32	*
	33	* This code is derived from software contributed to Berkeley by
	34	* Rick Macklem at The University of Guelph.
	35	*
	36	* Redistribution and use in source and binary forms, with or without
	37	* modification, are permitted provided that the following conditions
	38	* are met:
	39	* 1. Redistributions of source code must retain the above copyright
	40	* notice, this list of conditions and the following disclaimer.
	41	* 2. Redistributions in binary form must reproduce the above copyright
	42	* notice, this list of conditions and the following disclaimer in the
	43	* documentation and/or other materials provided with the distribution.
	44	* 3. All advertising materials mentioning features or use of this software
	45	* must display the following acknowledgement:
	46	* This product includes software developed by the University of
	47	* California, Berkeley and its contributors.
	48	* 4. Neither the name of the University nor the names of its contributors
	49	* may be used to endorse or promote products derived from this software
	50	* without specific prior written permission.
	51	*
	52	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	53	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	54	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	55	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	56	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	57	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	58	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	59	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	60	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	61	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	62	* SUCH DAMAGE.
	63	*
	64	* @(#)xdr_subs.h 8.3 (Berkeley) 3/30/95
	65	* FreeBSD-Id: xdr_subs.h,v 1.9 1997/02/22 09:42:53 peter Exp $
	66	*/
	67
	68
	69	#ifndef _NFS_XDR_SUBS_H_
	70	#define _NFS_XDR_SUBS_H_
	71
9bccf70c A	72	#include <sys/appleapiopts.h>
	73
	74	#ifdef __APPLE_API_PRIVATE
1c79356b A	75	/*
	76	* Macros used for conversion to/from xdr representation by nfs...
	77	* These use the MACHINE DEPENDENT routines ntohl, htonl
	78	* As defined by "XDR: External Data Representation Standard" RFC1014
	79	*
	80	* To simplify the implementation, we use ntohl/htonl even on big-endian
	81	* machines, and count on them being `#define'd away. Some of these
	82	* might be slightly more efficient as quad_t copies on a big-endian,
	83	* but we cannot count on their alignment anyway.
	84	*/
	85
	86	#define fxdr_unsigned(t, v) ((t)ntohl((long)(v)))
	87	#define txdr_unsigned(v) (htonl((long)(v)))
	88
	89	#define fxdr_nfsv2time(f, t) { \
	90	(t)->tv_sec = ntohl(((struct nfsv2_time *)(f))->nfsv2_sec); \
	91	if (((struct nfsv2_time *)(f))->nfsv2_usec != 0xffffffff) \
	92	(t)->tv_nsec = 1000 * ntohl(((struct nfsv2_time *)(f))->nfsv2_usec); \
	93	else \
	94	(t)->tv_nsec = 0; \
	95	}
	96	#define txdr_nfsv2time(f, t) { \
	97	((struct nfsv2_time *)(t))->nfsv2_sec = htonl((f)->tv_sec); \
	98	if ((f)->tv_nsec != -1) \
	99	((struct nfsv2_time *)(t))->nfsv2_usec = htonl((f)->tv_nsec / 1000); \
	100	else \
	101	((struct nfsv2_time *)(t))->nfsv2_usec = 0xffffffff; \
	102	}
	103
	104	#define fxdr_nfsv3time(f, t) { \
	105	(t)->tv_sec = ntohl(((struct nfsv3_time *)(f))->nfsv3_sec); \
	106	(t)->tv_nsec = ntohl(((struct nfsv3_time *)(f))->nfsv3_nsec); \
	107	}
	108	#define txdr_nfsv3time(f, t) { \
	109	((struct nfsv3_time *)(t))->nfsv3_sec = htonl((f)->tv_sec); \
	110	((struct nfsv3_time *)(t))->nfsv3_nsec = htonl((f)->tv_nsec); \
	111	}
	112
	113	#define fxdr_hyper(f, t) { \
	114	((long )(t))[_QUAD_HIGHWORD] = ntohl(((long )(f))[0]); \
	115	((long )(t))[_QUAD_LOWWORD] = ntohl(((long )(f))[1]); \
	116	}
	117	#define txdr_hyper(f, t) { \
	118	((long )(t))[0] = htonl(((long )(f))[_QUAD_HIGHWORD]); \
	119	((long )(t))[1] = htonl(((long )(f))[_QUAD_LOWWORD]); \
	120	}
	121
9bccf70c A	122	#endif /* __APPLE_API_PRIVATE */
9bccf70c A	123	#endif /* _NFS_XDR_SUBS_H_ */