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112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
/*
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* Copyright (c) 2000 Ben Smithurst <ben@scientia.demon.co.uk>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code distributions
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* retain the above copyright notice and this paragraph in its entirety, (2)
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* distributions including binary code include the above copyright notice and
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* this paragraph in its entirety in the documentation or other materials
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* provided with the distribution, and (3) all advertising materials mentioning
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* features or use of this software display the following acknowledgement:
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* ``This product includes software developed by the University of California,
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* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
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* the University nor the names of its contributors may be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#ifndef lint
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static const char rcsid[] =
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"@(#) $Header: /tcpdump/master/tcpdump/print-timed.c,v 1.3 2001/05/17 18:33:23 fenner Exp $";
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#endif
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <sys/param.h>
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#include <sys/time.h>
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#include <netinet/in.h>
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#include <stdio.h>
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#include <string.h>
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#include "timed.h"
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#include "interface.h"
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static char *tsptype[TSPTYPENUMBER] =
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{ "ANY", "ADJTIME", "ACK", "MASTERREQ", "MASTERACK", "SETTIME", "MASTERUP",
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"SLAVEUP", "ELECTION", "ACCEPT", "REFUSE", "CONFLICT", "RESOLVE", "QUIT",
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"DATE", "DATEREQ", "DATEACK", "TRACEON", "TRACEOFF", "MSITE", "MSITEREQ",
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"TEST", "SETDATE", "SETDATEREQ", "LOOP" };
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void
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timed_print(register const u_char *bp, u_int length)
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{
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#define endof(x) ((u_char *)&(x) + sizeof (x))
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struct tsp *tsp = (struct tsp *)bp;
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long sec, usec;
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const u_char *end;
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if (endof(tsp->tsp_type) > snapend) {
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fputs("[|timed]", stdout);
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return;
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}
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if (tsp->tsp_type < TSPTYPENUMBER)
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printf("TSP_%s", tsptype[tsp->tsp_type]);
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else
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printf("(tsp_type %#x)", tsp->tsp_type);
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if (endof(tsp->tsp_vers) > snapend) {
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fputs(" [|timed]", stdout);
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return;
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}
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printf(" vers %d", tsp->tsp_vers);
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if (endof(tsp->tsp_seq) > snapend) {
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fputs(" [|timed]", stdout);
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return;
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}
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printf(" seq %d", tsp->tsp_seq);
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if (tsp->tsp_type == TSP_LOOP) {
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if (endof(tsp->tsp_hopcnt) > snapend) {
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fputs(" [|timed]", stdout);
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return;
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}
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printf(" hopcnt %d", tsp->tsp_hopcnt);
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} else if (tsp->tsp_type == TSP_SETTIME ||
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tsp->tsp_type == TSP_ADJTIME ||
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tsp->tsp_type == TSP_SETDATE ||
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tsp->tsp_type == TSP_SETDATEREQ) {
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if (endof(tsp->tsp_time) > snapend) {
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fputs(" [|timed]", stdout);
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return;
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}
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sec = ntohl((long)tsp->tsp_time.tv_sec);
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usec = ntohl((long)tsp->tsp_time.tv_usec);
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if (usec < 0)
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/* corrupt, skip the rest of the packet */
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return;
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fputs(" time ", stdout);
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if (sec < 0 && usec != 0) {
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sec++;
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if (sec == 0)
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fputc('-', stdout);
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usec = 1000000 - usec;
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}
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printf("%ld.%06ld", sec, usec);
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}
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end = memchr(tsp->tsp_name, '\0', snapend - (u_char *)tsp->tsp_name);
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if (end == NULL)
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fputs(" [|timed]", stdout);
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else {
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fputs(" name ", stdout);
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fwrite(tsp->tsp_name, end - (u_char *)tsp->tsp_name, 1, stdout);
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}
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}
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