[dragonfly.git] / contrib / tcpdump / print-ah.c

/*	$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;
}
Commit	Line	Data
c8cf0f94 PA	1	/* $NetBSD: print-ah.c,v 1.4 1996/05/20 00:41:16 fvdl Exp $ */
	2
	3	/*
	4	* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994
	5	* The Regents of the University of California. All rights reserved.
	6	*
	7	* Redistribution and use in source and binary forms, with or without
	8	* modification, are permitted provided that: (1) source code distributions
	9	* retain the above copyright notice and this paragraph in its entirety, (2)
	10	* distributions including binary code include the above copyright notice and
	11	* this paragraph in its entirety in the documentation or other materials
	12	* provided with the distribution, and (3) all advertising materials mentioning
	13	* features or use of this software display the following acknowledgement:
	14	* ``This product includes software developed by the University of California,
	15	* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
	16	* the University nor the names of its contributors may be used to endorse
	17	* or promote products derived from this software without specific prior
	18	* written permission.
	19	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
	20	* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
	21	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
	22	*/
	23
	24	#ifndef lint
	25	static const char rcsid[] _U_ =
	26	"@(#) $Header: /tcpdump/master/tcpdump/print-ah.c,v 1.22 2003/11/19 00:36:06 guy Exp $ (LBL)";
	27	#endif
	28
	29	#ifdef HAVE_CONFIG_H
	30	#include "config.h"
	31	#endif
	32
	33	#include <tcpdump-stdinc.h>
	34
	35	#include <stdio.h>
	36
	37	#include "ah.h"
	38
	39	#include "interface.h"
	40	#include "addrtoname.h"
	41	#include "extract.h"
	42
	43	int
	44	ah_print(register const u_char *bp)
	45	{
	46	register const struct ah *ah;
	47	register const u_char *ep;
	48	int sumlen;
	49	u_int32_t spi;
	50
	51	ah = (const struct ah *)bp;
	52	ep = snapend; /* 'ep' points to the end of available data. */
	53
	54	TCHECK(*ah);
	55
	56	sumlen = ah->ah_len << 2;
	57	spi = EXTRACT_32BITS(&ah->ah_spi);
	58
	59	printf("AH(spi=0x%08x", spi);
	60	if (vflag)
	61	printf(",sumlen=%d", sumlen);
	62	printf(",seq=0x%x", EXTRACT_32BITS(ah + 1));
	63	if (bp + sizeof(struct ah) + sumlen > ep)
	64	fputs("[truncated]", stdout);
65	fputs("): ", stdout);
66
67	return sizeof(struct ah) + sumlen;
68	trunc:
69	fputs("[\|AH]", stdout);
70	return -1;
71	}