133280Sbostic /* 233280Sbostic * Copyright (c) 1987 Regents of the University of California. 333280Sbostic * All rights reserved. 433280Sbostic * 533280Sbostic * Redistribution and use in source and binary forms are permitted 634867Sbostic * provided that the above copyright notice and this paragraph are 734867Sbostic * duplicated in all such forms and that any documentation, 834867Sbostic * advertising materials, and other materials related to such 934867Sbostic * distribution and use acknowledge that the software was developed 1034867Sbostic * by the University of California, Berkeley. The name of the 1134867Sbostic * University may not be used to endorse or promote products derived 1234867Sbostic * from this software without specific prior written permission. 1334867Sbostic * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 1434867Sbostic * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 1534867Sbostic * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 1633280Sbostic * 17*40610Skarels * @(#)endian.h 7.4 (Berkeley) 03/23/90 1833280Sbostic */ 1933280Sbostic 2033280Sbostic /* 2133280Sbostic * Definitions for byte order, 2233280Sbostic * according to byte significance from low address to high. 2333280Sbostic */ 2433280Sbostic #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */ 2533280Sbostic #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ 2633280Sbostic #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */ 2733280Sbostic 2833280Sbostic #define BYTE_ORDER LITTLE_ENDIAN /* byte order on vax */ 2933280Sbostic 3033280Sbostic /* 3133280Sbostic * Macros for network/external number representation conversion. 3233280Sbostic */ 3333381Skarels #if BYTE_ORDER == BIG_ENDIAN && !defined(lint) 3433280Sbostic #define ntohl(x) (x) 3533280Sbostic #define ntohs(x) (x) 3633280Sbostic #define htonl(x) (x) 3733280Sbostic #define htons(x) (x) 38*40610Skarels 39*40610Skarels #define NTOHL(x) (x) 40*40610Skarels #define NTOHS(x) (x) 41*40610Skarels #define HTONL(x) (x) 42*40610Skarels #define HTONS(x) (x) 43*40610Skarels 4433280Sbostic #else 45*40610Skarels 4633280Sbostic unsigned short ntohs(), htons(); 4733280Sbostic unsigned long ntohl(), htonl(); 48*40610Skarels 49*40610Skarels #define NTOHL(x) (x) = ntohl(x) 50*40610Skarels #define NTOHS(x) (x) = ntohs(x) 51*40610Skarels #define HTONL(x) (x) = htonl(x) 52*40610Skarels #define HTONS(x) (x) = htons(x) 5333280Sbostic #endif 54