1 /* $OpenBSD: print-timed.c,v 1.8 2020/01/24 22:46:37 procter Exp $ */
2
3 /*
4 * Copyright (c) 2000 Ben Smithurst <ben@scientia.demon.co.uk>
5 * 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 * from tcpdump.org:
24 * Header: /tcpdump/master/tcpdump/print-timed.c,v 1.1 2000/10/06 05:35:37 guy Exp
25 *
26 */
27
28 #ifdef HAVE_CONFIG_H
29 #include "config.h"
30 #endif
31
32 #include <sys/time.h>
33
34 #include <netinet/in.h>
35
36 #include <protocols/timed.h>
37
38 #include <stdio.h>
39 #include <string.h>
40
41 #include "interface.h"
42 #include "addrtoname.h"
43 #include "extract.h" /* must come after interface.h */
44
45 static const char *tsptype[TSPTYPENUMBER] =
46 { "ANY", "ADJTIME", "ACK", "MASTERREQ", "MASTERACK", "SETTIME", "MASTERUP",
47 "SLAVEUP", "ELECTION", "ACCEPT", "REFUSE", "CONFLICT", "RESOLVE", "QUIT",
48 "DATE", "DATEREQ", "DATEACK", "TRACEON", "TRACEOFF", "MSITE", "MSITEREQ",
49 "TEST", "SETDATE", "SETDATEREQ", "LOOP" };
50
51 void
timed_print(const u_char * bp,u_int length)52 timed_print(const u_char *bp, u_int length)
53 {
54 #define endof(x) ((u_char *)&(x) + sizeof (x))
55 struct tsp *tsp = (struct tsp *)bp;
56 long sec, usec;
57 const u_char *end;
58
59 TCHECK(tsp->tsp_type);
60 if (tsp->tsp_type < TSPTYPENUMBER)
61 printf("TSP_%s", tsptype[tsp->tsp_type]);
62 else
63 printf("(tsp_type %#x)", tsp->tsp_type);
64
65 TCHECK(tsp->tsp_vers);
66 printf(" vers %d", tsp->tsp_vers);
67
68 TCHECK(tsp->tsp_seq);
69 printf(" seq %d", tsp->tsp_seq);
70
71 if (tsp->tsp_type == TSP_LOOP) {
72 TCHECK(tsp->tsp_hopcnt);
73 printf(" hopcnt %d", tsp->tsp_hopcnt);
74 } else if (tsp->tsp_type == TSP_SETTIME ||
75 tsp->tsp_type == TSP_ADJTIME ||
76 tsp->tsp_type == TSP_SETDATE ||
77 tsp->tsp_type == TSP_SETDATEREQ) {
78 TCHECK(tsp->tsp_time);
79 sec = EXTRACT_32BITS(&tsp->tsp_time.tv_sec);
80 usec = EXTRACT_32BITS(&tsp->tsp_time.tv_usec);
81 if (usec < 0)
82 /* corrupt, skip the rest of the packet */
83 return;
84 printf(" time ");
85 if (sec < 0 && usec != 0) {
86 sec++;
87 if (sec == 0)
88 fputc('-', stdout);
89 usec = 1000000 - usec;
90 }
91 printf("%ld.%06ld", sec, usec);
92 }
93
94 end = endof(tsp->tsp_name) > snapend ? snapend : endof(tsp->tsp_name);
95 printf(" name ");
96 if (fn_print(tsp->tsp_name, end))
97 goto trunc;
98 return;
99 trunc:
100 printf(" [|timed]");
101 }
102