routed.tproj/trace/trace.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
   7  * Reserved.  This file contains Original Code and/or Modifications of
   8  * Original Code as defined in and that are subject to the Apple Public
   9  * Source License Version 1.0 (the 'License').  You may not use this file
  10  * except in compliance with the License.  Please obtain a copy of the
  11  * License at http://www.apple.com/publicsource and read it before using
  12  * this file.
  13  *
  14  * The Original Code and all software distributed under the License are
  15  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  16  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  17  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  19  * License for the specific language governing rights and limitations
  20  * under the License."
  21  *
  22  * @APPLE_LICENSE_HEADER_END@
  23  */
  24 /*
  25  * Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved
  26  *
  27  * Copyright (c) 1983, 1988, 1993
  28  *      The Regents of the University of California.  All rights reserved.
  29  *
  30  * The NEXTSTEP Software License Agreement specifies the terms
  31  * and conditions for redistribution.
  32  *
  33  */
  34
  35 #ifndef lint
  36 static char copyright[] =
  37 "@(#) Copyright (c) 1983, 1988, 1993\n\
  38         The Regents of the University of California.  All rights reserved.\n";
  39 #endif /* not lint */
  40
  41 #ifndef lint
  42 static char sccsid[] = "@(#)trace.c     8.2 (Berkeley) 4/28/95";
  43 #endif /* not lint */
  44
  45 #include <sys/param.h>
  46 #include <sys/protosw.h>
  47 #include <sys/socket.h>
  48 #include <netinet/in.h>
  49 #include <protocols/routed.h>
  50 #include <arpa/inet.h>
  51 #include <netdb.h>
  52 #include <stdio.h>
  53 #include <stdlib.h>
  54 #include <string.h>
  55
  56 struct  sockaddr_in myaddr;
  57 char    packet[MAXPACKETSIZE];
  58
  59 main(argc, argv)
  60         int argc;
  61         char **argv;
  62 {
  63         int size, s;
  64         struct sockaddr from;
  65         struct sockaddr_in router;
  66         register struct rip *msg = (struct rip *)packet;
  67         struct hostent *hp;
  68         struct servent *sp;
  69
  70         if (argc < 3) {
  71 usage:
  72                 printf("usage: trace cmd machines,\n");
  73                 printf("cmd either \"on filename\", or \"off\"\n");
  74                 exit(1);
  75         }
  76         s = socket(AF_INET, SOCK_DGRAM, 0);
  77         if (s < 0) {
  78                 perror("socket");
  79                 exit(2);
  80         }
  81         myaddr.sin_family = AF_INET;
  82         myaddr.sin_port = htons(IPPORT_RESERVED-1);
  83         if (bind(s, (struct sockaddr *)&myaddr, sizeof(myaddr)) < 0) {
  84                 perror("bind");
  85                 exit(2);
  86         }
  87
  88         argv++, argc--;
  89         msg->rip_cmd = strcmp(*argv, "on") == 0 ?
  90                 RIPCMD_TRACEON : RIPCMD_TRACEOFF;
  91         msg->rip_vers = RIPVERSION;
  92         argv++, argc--;
  93         size = sizeof (int);
  94         if (msg->rip_cmd == RIPCMD_TRACEON) {
  95                 strcpy(msg->rip_tracefile, *argv);
  96                 size += strlen(*argv);
  97                 argv++, argc--;
  98         }
  99         if (argc == 0)
 100                 goto usage;
 101         memset(&router, 0, sizeof (router));
 102         router.sin_family = AF_INET;
 103         sp = getservbyname("router", "udp");
 104         if (sp == 0) {
 105                 printf("udp/router: service unknown\n");
 106                 exit(1);
 107         }
 108         router.sin_port = sp->s_port;
 109         while (argc > 0) {
 110                 router.sin_family = AF_INET;
 111                 router.sin_addr.s_addr = inet_addr(*argv);
 112                 if (router.sin_addr.s_addr == -1) {
 113                         hp = gethostbyname(*argv);
 114                         if (hp == NULL) {
 115                                 fprintf(stderr, "trace: %s: ", *argv);
 116                                 herror((char *)NULL);
 117                                 continue;
 118                         }
 119                         memmove(&router.sin_addr, hp->h_addr, hp->h_length);
 120                 }
 121                 if (sendto(s, packet, size, 0,
 122                     (struct sockaddr *)&router, sizeof(router)) < 0)
 123                         perror(*argv);
 124                 argv++, argc--;
 125         }
 126 }