126 lines
3.9 KiB
C
126 lines
3.9 KiB
C
/*-
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* Copyright (c) 1983, 1988, 1993
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* The Regents of the University of California. 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 the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char copyright[] =
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"@(#) Copyright (c) 1983, 1988, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static char sccsid[] = "@(#)trace.c 8.1 (Berkeley) 6/5/93";
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/protosw.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <protocols/routed.h>
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#include <arpa/inet.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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struct sockaddr_in myaddr;
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char packet[MAXPACKETSIZE];
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main(argc, argv)
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int argc;
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char **argv;
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{
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int size, s;
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struct sockaddr from;
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struct sockaddr_in router;
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register struct rip *msg = (struct rip *)packet;
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struct hostent *hp;
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struct servent *sp;
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if (argc < 3) {
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usage:
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printf("usage: trace cmd machines,\n");
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printf("cmd either \"on filename\", or \"off\"\n");
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exit(1);
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}
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s = socket(AF_INET, SOCK_DGRAM, 0);
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if (s < 0) {
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perror("socket");
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exit(2);
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}
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myaddr.sin_family = AF_INET;
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myaddr.sin_port = htons(IPPORT_RESERVED-1);
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if (bind(s, (struct sockaddr *)&myaddr, sizeof(myaddr)) < 0) {
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perror("bind");
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exit(2);
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}
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argv++, argc--;
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msg->rip_cmd = strcmp(*argv, "on") == 0 ?
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RIPCMD_TRACEON : RIPCMD_TRACEOFF;
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msg->rip_vers = RIPVERSION;
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argv++, argc--;
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size = sizeof (int);
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if (msg->rip_cmd == RIPCMD_TRACEON) {
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strcpy(msg->rip_tracefile, *argv);
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size += strlen(*argv);
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argv++, argc--;
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}
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if (argc == 0)
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goto usage;
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bzero((char *)&router, sizeof (router));
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router.sin_family = AF_INET;
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sp = getservbyname("router", "udp");
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if (sp == 0) {
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printf("udp/router: service unknown\n");
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exit(1);
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}
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router.sin_port = sp->s_port;
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while (argc > 0) {
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router.sin_family = AF_INET;
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router.sin_addr.s_addr = inet_addr(*argv);
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if (router.sin_addr.s_addr == -1) {
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hp = gethostbyname(*argv);
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if (hp == NULL) {
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fprintf(stderr, "trace: %s: ", *argv);
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herror((char *)NULL);
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continue;
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}
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bcopy(hp->h_addr, &router.sin_addr, hp->h_length);
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}
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if (sendto(s, packet, size, 0,
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(struct sockaddr *)&router, sizeof(router)) < 0)
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perror(*argv);
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argv++, argc--;
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}
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}
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