133277Sbostic /* 233277Sbostic * Copyright (c) 1987 Regents of the University of California. 333277Sbostic * All rights reserved. 433277Sbostic * 533277Sbostic * Redistribution and use in source and binary forms are permitted 634863Sbostic * provided that the above copyright notice and this paragraph are 734863Sbostic * duplicated in all such forms and that any documentation, 834863Sbostic * advertising materials, and other materials related to such 934863Sbostic * distribution and use acknowledge that the software was developed 1034863Sbostic * by the University of California, Berkeley. The name of the 1134863Sbostic * University may not be used to endorse or promote products derived 1234863Sbostic * from this software without specific prior written permission. 1334863Sbostic * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 1434863Sbostic * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 1534863Sbostic * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 1633277Sbostic * 17*40611Skarels * @(#)endian.h 7.4 (Berkeley) 03/23/90 1833277Sbostic */ 1933277Sbostic 2033277Sbostic /* 2133277Sbostic * Definitions for byte order, 2233277Sbostic * according to byte significance from low address to high. 2333277Sbostic */ 2433277Sbostic #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */ 2533277Sbostic #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ 2633277Sbostic #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */ 2733277Sbostic 2833277Sbostic #define BYTE_ORDER BIG_ENDIAN /* byte order on tahoe */ 2933277Sbostic 3033277Sbostic /* 3133277Sbostic * Macros for network/external number representation conversion. 3233277Sbostic */ 3333380Skarels #if BYTE_ORDER == BIG_ENDIAN && !defined(lint) 3433277Sbostic #define ntohl(x) (x) 3533277Sbostic #define ntohs(x) (x) 3633277Sbostic #define htonl(x) (x) 3733277Sbostic #define htons(x) (x) 38*40611Skarels 39*40611Skarels #define NTOHL(x) (x) 40*40611Skarels #define NTOHS(x) (x) 41*40611Skarels #define HTONL(x) (x) 42*40611Skarels #define HTONS(x) (x) 43*40611Skarels 4433277Sbostic #else 45*40611Skarels 4633277Sbostic unsigned short ntohs(), htons(); 4733277Sbostic unsigned long ntohl(), htonl(); 48*40611Skarels 49*40611Skarels #define NTOHL(x) (x) = ntohl(x) 50*40611Skarels #define NTOHS(x) (x) = ntohs(x) 51*40611Skarels #define HTONL(x) (x) = htonl(x) 52*40611Skarels #define HTONS(x) (x) = htons(x) 5333277Sbostic #endif 54