/* * Copyright (c) 1990 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that: (1) source code distributions * retain the above copyright notice and this paragraph in its entirety, (2) * distributions including binary code include the above copyright notice and * this paragraph in its entirety in the documentation or other materials * provided with the distribution, and (3) all advertising materials mentioning * features or use of this software display the following acknowledgement: * ``This product includes software developed by the University of California, * Lawrence Berkeley Laboratory and its contributors.'' 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. * * @(#) $Header: extract.h,v 1.4 92/05/25 14:28:36 mccanne Exp $ (LBL) */ #ifdef TCPDUMP_ALIGN #if BYTEORDER == LITTLE_ENDIAN #define EXTRACT_SHORT(p)\ ((u_short)\ ((u_short)*((u_char *)p+1)<<8|\ (u_short)*((u_char *)p+0)<<0)) #define EXTRACT_LONG(p)\ ((u_long)*((u_char *)p+3)<<24|\ (u_long)*((u_char *)p+2)<<16|\ (u_long)*((u_char *)p+1)<<8|\ (u_long)*((u_char *)p+0)<<0) #else #define EXTRACT_SHORT(p)\ ((u_short)\ ((u_short)*((u_char *)p+0)<<8|\ (u_short)*((u_char *)p+1)<<0)) #define EXTRACT_LONG(p)\ ((u_long)*((u_char *)p+0)<<24|\ (u_long)*((u_char *)p+1)<<16|\ (u_long)*((u_char *)p+2)<<8|\ (u_long)*((u_char *)p+3)<<0) #endif #else #define EXTRACT_SHORT(p) ((u_short)ntohs(*(u_short *)p)) #define EXTRACT_LONG(p) (ntohl(*(u_long *)p)) #endif