Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / print-ah.c
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c8cf0f94
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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
25static 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
43int
44ah_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}