/* * Check the definitions below this big long copyright message and make * sure they are right for your machine. If your machine has a * , then ignore this and use -DHAVE_MACHINE_ENDIAN_H * instead. * * This file taken from FreeBSD 2.1.0-Development, then lots of stuff * deleted. */ /* * Copyright (c) 1987, 1991 Regents of the University of California. * All rights reserved. * * 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. * * from: @(#)endian.h 7.8 (Berkeley) 4/3/91 * $Id: bsdendian.h,v 4.1 1996/07/24 16:49:43 braden Exp $ */ #ifndef _MACHINE_ENDIAN_H_ #define _MACHINE_ENDIAN_H_ 1 /* * Definitions for byte order, according to byte significance from low * address to high. */ #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */ #define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */ #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */ #if defined(__i386__) || defined(i386) || defined(__vax__) || defined(vax) #define BYTE_ORDER LITTLE_ENDIAN #endif #if defined(__MIPSEL__) || defined(MIPSEL) || defined(__alpha) #define BYTE_ORDER LITTLE_ENDIAN #endif #ifndef BYTE_ORDER #define BYTE_ORDER BIG_ENDIAN #endif /* * Macros for network/external number representation conversion. */ #if BYTE_ORDER == BIG_ENDIAN && !defined(lint) #ifndef __GNUC__ #define ntohl(x) (x) #define ntohs(x) (x) #define htonl(x) (x) #define htons(x) (x) #endif #define NTOHL(x) #define NTOHS(x) #define HTONL(x) #define HTONS(x) #else #if defined(__alpha) extern unsigned int ntohl __P((unsigned int)); extern unsigned short ntohs __P((unsigned /*short*/ int)); extern unsigned int htonl __P((unsigned int)); extern unsigned short htons __P((unsigned /*short*/ int)); #define NTOHL(x) (void) ((x) = ntohl((u_int)x)) #define NTOHS(x) (void) ((x) = ntohs((u_short)x)) #define HTONL(x) (void) ((x) = htonl((u_int)x)) #define HTONS(x) (void) ((x) = htons((u_short)x)) #else /* Default case: 32 bit ints and longs */ extern unsigned long ntohl __P((unsigned long)); extern unsigned short ntohs __P((unsigned /*short*/ int)); extern unsigned long htonl __P((unsigned long)); extern unsigned short htons __P((unsigned /*short*/ int)); #define NTOHL(x) (void) ((x) = ntohl((u_long)x)) #define NTOHS(x) (void) ((x) = ntohs((u_short)x)) #define HTONL(x) (void) ((x) = htonl((u_long)x)) #define HTONS(x) (void) ((x) = htons((u_short)x)) #endif /* not 64-bit machine */ #endif /* not BIG_ENDIAN */ #endif /* _MACHINE_ENDIAN_H_ */