/* $OpenBSD: endian.h,v 1.5 1997/06/24 18:15:02 grr Exp $ */ /* $NetBSD: endian.h,v 1.3 1996/02/13 17:04:58 christos Exp $ */ /* * 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. * * @(#)endian.h 7.7 (Berkeley) 4/3/91 */ #ifndef _MACHINE_ENDIAN_H_ #define _MACHINE_ENDIAN_H_ #define _QUAD_HIGHWORD 0 #define _QUAD_LOWWORD 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 int32_t */ #define BYTE_ORDER BIG_ENDIAN #include typedef u_int32_t in_addr_t; typedef u_int16_t in_port_t; __BEGIN_DECLS u_int32_t htonl __P((u_int32_t)); u_int16_t htons __P((u_int16_t)); u_int32_t ntohl __P((u_int32_t)); u_int16_t ntohs __P((u_int16_t)); __END_DECLS /* * Macros for network/external number representation conversion. */ #if BYTE_ORDER == BIG_ENDIAN && !defined(lint) #define ntohl(x) (x) #define ntohs(x) (x) #define htonl(x) (x) #define htons(x) (x) #define NTOHL(x) (x) #define NTOHS(x) (x) #define HTONL(x) (x) #define HTONS(x) (x) #else #define NTOHL(x) (x) = ntohl((u_int32_t)x) #define NTOHS(x) (x) = ntohs((u_int16_t)x) #define HTONL(x) (x) = htonl((u_int32_t)x) #define HTONS(x) (x) = htons((u_int16_t)x) #endif #endif /* _MACHINE_ENDIAN_H_ */