Move tcpdump-3.9/ to tcpdump/. No need for a versioned dir.
[dragonfly.git] / contrib / tcpdump / print-timed.c
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c8cf0f94
PA
1/*
2 * Copyright (c) 2000 Ben Smithurst <ben@scientia.demon.co.uk>
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
22#ifndef lint
23static const char rcsid[] _U_ =
24 "@(#) $Header: /tcpdump/master/tcpdump/print-timed.c,v 1.9 2003/11/16 09:36:40 guy Exp $";
25#endif
26
27#ifdef HAVE_CONFIG_H
28#include "config.h"
29#endif
30
31#include <tcpdump-stdinc.h>
32
33#include <stdio.h>
34#include <string.h>
35
36#include "timed.h"
37#include "interface.h"
38#include "extract.h"
39
40static const char *tsptype[TSPTYPENUMBER] =
41 { "ANY", "ADJTIME", "ACK", "MASTERREQ", "MASTERACK", "SETTIME", "MASTERUP",
42 "SLAVEUP", "ELECTION", "ACCEPT", "REFUSE", "CONFLICT", "RESOLVE", "QUIT",
43 "DATE", "DATEREQ", "DATEACK", "TRACEON", "TRACEOFF", "MSITE", "MSITEREQ",
44 "TEST", "SETDATE", "SETDATEREQ", "LOOP" };
45
46void
47timed_print(register const u_char *bp)
48{
49#define endof(x) ((u_char *)&(x) + sizeof (x))
50 struct tsp *tsp = (struct tsp *)bp;
51 long sec, usec;
52 const u_char *end;
53
54 if (endof(tsp->tsp_type) > snapend) {
55 fputs("[|timed]", stdout);
56 return;
57 }
58 if (tsp->tsp_type < TSPTYPENUMBER)
59 printf("TSP_%s", tsptype[tsp->tsp_type]);
60 else
61 printf("(tsp_type %#x)", tsp->tsp_type);
62
63 if (endof(tsp->tsp_vers) > snapend) {
64 fputs(" [|timed]", stdout);
65 return;
66 }
67 printf(" vers %d", tsp->tsp_vers);
68
69 if (endof(tsp->tsp_seq) > snapend) {
70 fputs(" [|timed]", stdout);
71 return;
72 }
73 printf(" seq %d", tsp->tsp_seq);
74
75 if (tsp->tsp_type == TSP_LOOP) {
76 if (endof(tsp->tsp_hopcnt) > snapend) {
77 fputs(" [|timed]", stdout);
78 return;
79 }
80 printf(" hopcnt %d", tsp->tsp_hopcnt);
81 } else if (tsp->tsp_type == TSP_SETTIME ||
82 tsp->tsp_type == TSP_ADJTIME ||
83 tsp->tsp_type == TSP_SETDATE ||
84 tsp->tsp_type == TSP_SETDATEREQ) {
85 if (endof(tsp->tsp_time) > snapend) {
86 fputs(" [|timed]", stdout);
87 return;
88 }
89 sec = EXTRACT_32BITS(&tsp->tsp_time.tv_sec);
90 usec = EXTRACT_32BITS(&tsp->tsp_time.tv_usec);
91 if (usec < 0)
92 /* corrupt, skip the rest of the packet */
93 return;
94 fputs(" time ", stdout);
95 if (sec < 0 && usec != 0) {
96 sec++;
97 if (sec == 0)
98 fputc('-', stdout);
99 usec = 1000000 - usec;
100 }
101 printf("%ld.%06ld", sec, usec);
102 }
103
104 end = memchr(tsp->tsp_name, '\0', snapend - (u_char *)tsp->tsp_name);
105 if (end == NULL)
106 fputs(" [|timed]", stdout);
107 else {
108 fputs(" name ", stdout);
109 fwrite(tsp->tsp_name, end - (u_char *)tsp->tsp_name, 1, stdout);
110 }
111}