148131Sbostic /*- 2*61543Sbostic * Copyright (c) 1983, 1988, 1993 3*61543Sbostic * The Regents of the University of California. All rights reserved. 433488Sbostic * 548131Sbostic * %sccs.include.redist.c% 622009Sdist */ 722009Sdist 87214Ssam #ifndef lint 9*61543Sbostic static char copyright[] = 10*61543Sbostic "@(#) Copyright (c) 1983, 1988, 1993\n\ 11*61543Sbostic The Regents of the University of California. All rights reserved.\n"; 1233488Sbostic #endif /* not lint */ 137214Ssam 1422009Sdist #ifndef lint 15*61543Sbostic static char sccsid[] = "@(#)trace.c 8.1 (Berkeley) 06/05/93"; 1633488Sbostic #endif /* not lint */ 1722009Sdist 187214Ssam #include <sys/param.h> 197214Ssam #include <sys/protosw.h> 207214Ssam #include <sys/socket.h> 2115760Skarels #include <netinet/in.h> 2246786Sbostic #include <protocols/routed.h> 2346786Sbostic #include <arpa/inet.h> 2446786Sbostic #include <netdb.h> 257214Ssam #include <stdio.h> 2646786Sbostic #include <stdlib.h> 2746786Sbostic #include <string.h> 287214Ssam 2936833Skarels struct sockaddr_in myaddr; 3015760Skarels char packet[MAXPACKETSIZE]; 317214Ssam 327214Ssam main(argc, argv) 337214Ssam int argc; 3446786Sbostic char **argv; 357214Ssam { 367214Ssam int size, s; 377214Ssam struct sockaddr from; 387214Ssam struct sockaddr_in router; 397214Ssam register struct rip *msg = (struct rip *)packet; 408340Ssam struct hostent *hp; 418340Ssam struct servent *sp; 427214Ssam 437214Ssam if (argc < 3) { 447214Ssam usage: 457214Ssam printf("usage: trace cmd machines,\n"); 467214Ssam printf("cmd either \"on filename\", or \"off\"\n"); 477214Ssam exit(1); 487214Ssam } 4915760Skarels s = socket(AF_INET, SOCK_DGRAM, 0); 5015760Skarels if (s < 0) { 5115760Skarels perror("socket"); 5215760Skarels exit(2); 5315760Skarels } 5436833Skarels myaddr.sin_family = AF_INET; 5536833Skarels myaddr.sin_port = htons(IPPORT_RESERVED-1); 5646786Sbostic if (bind(s, (struct sockaddr *)&myaddr, sizeof(myaddr)) < 0) { 5715760Skarels perror("bind"); 587214Ssam exit(2); 597214Ssam } 6015760Skarels 617214Ssam argv++, argc--; 627214Ssam msg->rip_cmd = strcmp(*argv, "on") == 0 ? 637214Ssam RIPCMD_TRACEON : RIPCMD_TRACEOFF; 6415760Skarels msg->rip_vers = RIPVERSION; 657214Ssam argv++, argc--; 667214Ssam size = sizeof (int); 677214Ssam if (msg->rip_cmd == RIPCMD_TRACEON) { 687214Ssam strcpy(msg->rip_tracefile, *argv); 697214Ssam size += strlen(*argv); 707214Ssam argv++, argc--; 717214Ssam } 727214Ssam if (argc == 0) 737214Ssam goto usage; 747214Ssam bzero((char *)&router, sizeof (router)); 757214Ssam router.sin_family = AF_INET; 768340Ssam sp = getservbyname("router", "udp"); 778340Ssam if (sp == 0) { 788340Ssam printf("udp/router: service unknown\n"); 798340Ssam exit(1); 808340Ssam } 8115760Skarels router.sin_port = sp->s_port; 827214Ssam while (argc > 0) { 8326146Skarels router.sin_family = AF_INET; 8426146Skarels router.sin_addr.s_addr = inet_addr(*argv); 8526146Skarels if (router.sin_addr.s_addr == -1) { 8626146Skarels hp = gethostbyname(*argv); 8735781Sbostic if (hp == NULL) { 8835781Sbostic fprintf(stderr, "trace: %s: ", *argv); 8935781Sbostic herror((char *)NULL); 9036833Skarels continue; 9126146Skarels } 9226146Skarels bcopy(hp->h_addr, &router.sin_addr, hp->h_length); 937214Ssam } 9446786Sbostic if (sendto(s, packet, size, 0, 9546786Sbostic (struct sockaddr *)&router, sizeof(router)) < 0) 967214Ssam perror(*argv); 977214Ssam argv++, argc--; 987214Ssam } 997214Ssam } 100