1 /* 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that: (1) source code distributions 7 * retain the above copyright notice and this paragraph in its entirety, (2) 8 * distributions including binary code include the above copyright notice and 9 * this paragraph in its entirety in the documentation or other materials 10 * provided with the distribution, and (3) all advertising materials mentioning 11 * features or use of this software display the following acknowledgement: 12 * ``This product includes software developed by the University of California, 13 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 14 * the University nor the names of its contributors may be used to endorse 15 * or promote products derived from this software without specific prior 16 * written permission. 17 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 20 * 21 * @(#) $Header$ (LBL) 22 */ 23 24 #ifdef ALIGN 25 #if BYTEORDER == LITTLE_ENDIAN 26 #define EXTRACT_SHORT(p)\ 27 ((u_short)\ 28 (*((u_char *)p+1)<<8|\ 29 *((u_char *)p+0)<<0)) 30 #define EXTRACT_LONG(p)\ 31 (*((u_char *)p+3)<<24|\ 32 *((u_char *)p+2)<<16|\ 33 *((u_char *)p+1)<<8|\ 34 *((u_char *)p+0)<<0) 35 #else 36 #define EXTRACT_SHORT(p)\ 37 ((u_short)\ 38 (*((u_char *)p+0)<<8|\ 39 *((u_char *)p+1)<<0)) 40 #define EXTRACT_LONG(p)\ 41 (*((u_char *)p+0)<<24|\ 42 *((u_char *)p+1)<<16|\ 43 *((u_char *)p+2)<<8|\ 44 *((u_char *)p+3)<<0) 45 #endif 46 #else 47 #define EXTRACT_SHORT(p) (ntohs(*(u_short *)p)) 48 #define EXTRACT_LONG(p) (ntohl(*(u_long *)p)) 49 #endif 50