amiga/include/endian.h

1.1  mw /*
1.1  mw  * Copyright (c) 1987, 1991 Regents of the University of California.
1.1  mw  * All rights reserved.
1.1  mw  *
1.1  mw  * Redistribution and use in source and binary forms, with or without
1.1  mw  * modification, are permitted provided that the following conditions
1.1  mw  * are met:
1.1  mw  * 1. Redistributions of source code must retain the above copyright
1.1  mw  *    notice, this list of conditions and the following disclaimer.
1.1  mw  * 2. Redistributions in binary form must reproduce the above copyright
1.1  mw  *    notice, this list of conditions and the following disclaimer in the
1.1  mw  *    documentation and/or other materials provided with the distribution.
1.1  mw  * 3. All advertising materials mentioning features or use of this software
1.1  mw  *    must display the following acknowledgement:
1.1  mw  *	This product includes software developed by the University of
1.1  mw  *	California, Berkeley and its contributors.
1.1  mw  * 4. Neither the name of the University nor the names of its contributors
1.1  mw  *    may be used to endorse or promote products derived from this software
1.1  mw  *    without specific prior written permission.
1.1  mw  *
1.1  mw  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1.1  mw  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.1  mw  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.1  mw  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
1.1  mw  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.1  mw  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
1.1  mw  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
1.1  mw  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
1.1  mw  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
1.1  mw  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
1.1  mw  * SUCH DAMAGE.
1.1  mw  *
1.1  mw  *	@(#)endian.h	7.7 (Berkeley) 4/3/91
1.1  mw  */
1.1  mw
1.1  mw /*
1.1  mw  * Definitions for byte order, according to byte significance from low
1.1  mw  * address to high.
1.1  mw  */
1.1  mw #define	LITTLE_ENDIAN	1234	/* LSB first: i386, vax */
1.1  mw #define	BIG_ENDIAN	4321	/* MSB first: 68000, ibm, net */
1.1  mw #define	PDP_ENDIAN	3412	/* LSB first in word, MSW first in long */
1.1  mw
1.1  mw #define	BYTE_ORDER	BIG_ENDIAN
1.1  mw
1.1  mw #ifndef KERNEL
1.1  mw #include <sys/cdefs.h>
1.1  mw #endif
1.1  mw
1.1  mw __BEGIN_DECLS
1.1  mw unsigned long	htonl __P((unsigned long));
1.1  mw unsigned short	htons __P((unsigned short));
1.1  mw unsigned long	ntohl __P((unsigned long));
1.1  mw unsigned short	ntohs __P((unsigned short));
1.1  mw __END_DECLS
1.1  mw
1.1  mw /*
1.1  mw  * Macros for network/external number representation conversion.
1.1  mw  */
1.1  mw #if BYTE_ORDER == BIG_ENDIAN && !defined(lint)
1.1  mw #define	ntohl(x)	(x)
1.1  mw #define	ntohs(x)	(x)
1.1  mw #define	htonl(x)	(x)
1.1  mw #define	htons(x)	(x)
1.1  mw
1.1  mw #define	NTOHL(x)	(x)
1.1  mw #define	NTOHS(x)	(x)
1.1  mw #define	HTONL(x)	(x)
1.1  mw #define	HTONS(x)	(x)
1.1  mw
1.1  mw #else
1.1  mw
1.1  mw #define	NTOHL(x)	(x) = ntohl((u_long)x)
1.1  mw #define	NTOHS(x)	(x) = ntohs((u_short)x)
1.1  mw #define	HTONL(x)	(x) = htonl((u_long)x)
1.1  mw #define	HTONS(x)	(x) = htons((u_short)x)
1.1  mw #endif