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147 lines
4.1 KiB
C
147 lines
4.1 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 <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#ifdef sgi
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#include <bstring.h>
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#endif
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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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#ifndef sgi
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#define _HAVE_SIN_LEN
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#endif
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struct sockaddr_in myaddr;
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char packet[MAXPACKETSIZE];
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int
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main(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_in router;
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char *tgt;
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register struct rip *msg = (struct rip *)packet;
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struct hostent *hp;
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if (argc < 2) {
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usage:
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printf("usage: on filename host1 host2 ...\n"
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" or: off host1 host2 ...\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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#ifdef _HAVE_SIN_LEN
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myaddr.sin_len = sizeof(myaddr);
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#endif
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myaddr.sin_port = htons(IPPORT_RESERVED-1);
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while (bind(s, (struct sockaddr *)&myaddr, sizeof(myaddr)) < 0) {
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if (errno != EADDRINUSE
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|| myaddr.sin_port == 0) {
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perror("bind");
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exit(2);
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}
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myaddr.sin_port = htons(ntohs(myaddr.sin_port)-1);
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}
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msg->rip_vers = RIPVERSION;
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size = sizeof(int);
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argv++, argc--;
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if (!strcmp(*argv, "on")) {
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msg->rip_cmd = RIPCMD_TRACEON;
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if (--argc <= 1)
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goto usage;
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strcpy(msg->rip_tracefile, *++argv);
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size += strlen(msg->rip_tracefile);
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} else if (!strcmp(*argv, "off")) {
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msg->rip_cmd = RIPCMD_TRACEOFF;
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} else {
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goto usage;
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}
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argv++, argc--;
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bzero(&router, sizeof(router));
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router.sin_family = AF_INET;
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#ifdef _HAVE_SIN_LEN
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router.sin_len = sizeof(router);
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#endif
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router.sin_port = htons(RIP_PORT);
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do {
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tgt = argc > 0 ? *argv++ : "localhost";
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router.sin_family = AF_INET;
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router.sin_addr.s_addr = inet_addr(tgt);
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if (router.sin_addr.s_addr == -1) {
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hp = gethostbyname(tgt);
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if (hp == 0) {
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herror(tgt);
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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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} while (--argc > 0);
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return 0;
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}
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