1 /* 2 * Copyright (c) 1992 Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Ralph Campbell. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * from: @(#)endian.h 7.5 (Berkeley) 2/21/93 37 * $Id: endian.h,v 1.1.1.1 1993/10/12 03:22:40 deraadt Exp $ 38 */ 39 40 /* 41 * Define _NOQUAD if the compiler does NOT support 64-bit integers. 42 */ 43 /* #define _NOQUAD */ 44 45 /* 46 * Define the order of 32-bit words in 64-bit words. 47 */ 48 #define _QUAD_HIGHWORD 1 49 #define _QUAD_LOWWORD 0 50 51 #ifndef _POSIX_SOURCE 52 /* 53 * Definitions for byte order, according to byte significance from low 54 * address to high. 55 */ 56 #define LITTLE_ENDIAN 1234 /* LSB first: i386, vax */ 57 #define BIG_ENDIAN 4321 /* MSB first: 68000, ibm, net */ 58 #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long */ 59 60 #define BYTE_ORDER LITTLE_ENDIAN 61 62 #include <sys/cdefs.h> 63 64 __BEGIN_DECLS 65 unsigned long htonl __P((unsigned long)); 66 unsigned short htons __P((unsigned short)); 67 unsigned long ntohl __P((unsigned long)); 68 unsigned short ntohs __P((unsigned short)); 69 __END_DECLS 70 71 /* 72 * Macros for network/external number representation conversion. 73 */ 74 #if BYTE_ORDER == BIG_ENDIAN && !defined(lint) 75 #define ntohl(x) (x) 76 #define ntohs(x) (x) 77 #define htonl(x) (x) 78 #define htons(x) (x) 79 80 #define NTOHL(x) (x) 81 #define NTOHS(x) (x) 82 #define HTONL(x) (x) 83 #define HTONS(x) (x) 84 85 #else 86 87 #define NTOHL(x) (x) = ntohl((u_long)x) 88 #define NTOHS(x) (x) = ntohs((u_short)x) 89 #define HTONL(x) (x) = htonl((u_long)x) 90 #define HTONS(x) (x) = htons((u_short)x) 91 #endif 92 #endif /* !_POSIX_SOURCE */ 93