/*- * Copyright (c) 1983, 1988 The Regents of the University of California. * All rights reserved. * * %sccs.include.redist.c% */ #ifndef lint char copyright[] = "@(#) Copyright (c) 1983, 1988 The Regents of the University of California.\n\ All rights reserved.\n"; #endif /* not lint */ #ifndef lint static char sccsid[] = "@(#)trace.c 5.9 (Berkeley) 04/16/91"; #endif /* not lint */ #include #include #include #include #include #include #include #include #include #include struct sockaddr_in myaddr; 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); } myaddr.sin_family = AF_INET; myaddr.sin_port = htons(IPPORT_RESERVED-1); if (bind(s, (struct sockaddr *)&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 == NULL) { fprintf(stderr, "trace: %s: ", *argv); herror((char *)NULL); continue; } bcopy(hp->h_addr, &router.sin_addr, hp->h_length); } if (sendto(s, packet, size, 0, (struct sockaddr *)&router, sizeof(router)) < 0) perror(*argv); argv++, argc--; } }