BSD 4_3_Net_1 release

[unix-history] / routed / tools / trace.c

/*
* Copyright (c) 1983 Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of California at Berkeley. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/

#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1983 Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */

#ifndef lint
static char sccsid[] = "@(#)trace.c     5.4 (Berkeley) 2/16/88";
#endif /* not lint */

#include <sys/param.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <errno.h>
#include <stdio.h>
#include <netdb.h>
#include <protocols/routed.h>

struct  sockaddr_in myaddr = { AF_INET, IPPORT_RESERVED-1 };
char    packet[MAXPACKETSIZE];

main(argc, argv)
       int argc;
       char *argv[];
{
       int size, s;
       struct sockaddr from;
       struct sockaddr_in router;
       register struct rip *msg = (struct rip *)packet;
       struct hostent *hp;
       struct servent *sp;
       
       if (argc < 3) {
usage:
               printf("usage: trace cmd machines,\n");
               printf("cmd either \"on filename\", or \"off\"\n");
               exit(1);
       }
       s = socket(AF_INET, SOCK_DGRAM, 0);
       if (s < 0) {
               perror("socket");
               exit(2);
       }
#ifdef vax || pdp11
       myaddr.sin_port = htons(myaddr.sin_port);
#endif
       if (bind(s, &myaddr, sizeof(myaddr)) < 0) {
               perror("bind");
               exit(2);
       }

       argv++, argc--;
       msg->rip_cmd = strcmp(*argv, "on") == 0 ?
               RIPCMD_TRACEON : RIPCMD_TRACEOFF;
       msg->rip_vers = RIPVERSION;
       argv++, argc--;
       size = sizeof (int);
       if (msg->rip_cmd == RIPCMD_TRACEON) {
               strcpy(msg->rip_tracefile, *argv);
               size += strlen(*argv);
               argv++, argc--;
       }
       if (argc == 0)
               goto usage;
       bzero((char *)&router, sizeof (router));
       router.sin_family = AF_INET;
       sp = getservbyname("router", "udp");
       if (sp == 0) {
               printf("udp/router: service unknown\n");
               exit(1);
       }
       router.sin_port = sp->s_port;
       while (argc > 0) {
               router.sin_family = AF_INET;
               router.sin_addr.s_addr = inet_addr(*argv);
               if (router.sin_addr.s_addr == -1) {
                       hp = gethostbyname(*argv);
                       if (hp == 0) {
                               printf("%s: unknown\n", *argv);
                               exit(1);
                       }
                       bcopy(hp->h_addr, &router.sin_addr, hp->h_length);
               }
               if (sendto(s, packet, size, 0, &router, sizeof(router)) < 0)
                       perror(*argv);
               argv++, argc--;
       }
}