/* $NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994 * 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. */ #ifndef lint static const char rcsid[] _U_ = "@(#) $Header: /tcpdump/master/tcpdump/print-ah.c,v 1.22 2003-11-19 00:36:06 guy Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <tcpdump-stdinc.h> #include <stdio.h> #include "ah.h" #include "interface.h" #include "addrtoname.h" #include "extract.h" int ah_print(register const u_char *bp) { register const struct ah *ah; register const u_char *ep; int sumlen; u_int32_t spi; ah = (const struct ah *)bp; ep = snapend; /* 'ep' points to the end of available data. */ TCHECK(*ah); sumlen = ah->ah_len << 2; spi = EXTRACT_32BITS(&ah->ah_spi); printf("AH(spi=0x%08x", spi); if (vflag) printf(",sumlen=%d", sumlen); printf(",seq=0x%x", EXTRACT_32BITS(ah + 1)); if (bp + sizeof(struct ah) + sumlen > ep) fputs("[truncated]", stdout); fputs("): ", stdout); return sizeof(struct ah) + sumlen; trunc: fputs("[|AH]", stdout); return -1; }