1 /*- 2 * Copyright (c) 1987, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)endian.h 8.1 (Berkeley) 6/10/93 34 * $NetBSD: endian.h,v 1.7 1999/08/21 05:53:51 simonb Exp $ 35 * $FreeBSD$ 36 */ 37 38 #ifndef _MACHINE_ENDIAN_H_ 39 #define _MACHINE_ENDIAN_H_ 40 41 #include <machine/ansi.h> 42 43 /* 44 * Define the order of 32-bit words in 64-bit words. 45 */ 46 #define _QUAD_HIGHWORD 0 47 #define _QUAD_LOWWORD 1 48 49 /* 50 * Definitions for byte order, according to byte significance from low 51 * address to high. 52 */ 53 #ifndef _POSIX_SOURCE 54 #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */ 55 #define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */ 56 #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */ 57 58 #define BYTE_ORDER BIG_ENDIAN 59 #endif /* !_POSIX_SOURCE */ 60 61 #ifndef _KERNEL 62 #include <sys/cdefs.h> 63 64 __BEGIN_DECLS 65 __uint32_t __htonl __P((__uint32_t)); 66 __uint16_t __htons __P((__uint16_t)); 67 __uint32_t __ntohl __P((__uint32_t)); 68 __uint16_t __ntohs __P((__uint16_t)); 69 __END_DECLS 70 #endif /* _KERNEL */ 71 72 #define __htonl(x) (x) 73 #define __htons(x) (x) 74 #define __ntohl(x) (x) 75 #define __ntohs(x) (x) 76 77 #endif /* !_MACHINE_ENDIAN_H_ */ 78