/* * Copyright (c) 1987 Regents of the University of California. * All rights reserved. * * Redistribution is only permitted until one year after the first shipment * of 4.4BSD by the Regents. Otherwise, redistribution and use in source and * binary forms are permitted provided that: (1) source distributions retain * this entire copyright notice and comment, and (2) distributions including * binaries display the following acknowledgement: This product includes * software developed by the University of California, Berkeley and its * contributors'' in the documentation or other materials provided with the * distribution and in all advertising materials mentioning features or use * of this software. 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 AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * * @(#)endian.h 7.5 (Berkeley) 6/28/90 */ /* * Definitions for byte order, * according to byte significance from low address to high. */ #define LITTLE_ENDIAN 1234 /* least-significant byte first (vax) */ #define BIG_ENDIAN 4321 /* most-significant byte first (IBM, net) */ #define PDP_ENDIAN 3412 /* LSB first in word, MSW first in long (pdp) */ #define BYTE_ORDER BIG_ENDIAN /* byte order on tahoe */ /* * 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 unsigned short ntohs(), htons(); unsigned long ntohl(), htonl(); #define NTOHL(x) (x) = ntohl(x) #define NTOHS(x) (x) = ntohs(x) #define HTONL(x) (x) = htonl(x) #define HTONS(x) (x) = htons(x) #endif