usr.bin/tip/cu.c

   1 /*
   2  * Copyright (c) 1983, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * @(#)cu.c     8.1 (Berkeley) 6/6/93
  30  * $FreeBSD: src/usr.bin/tip/tip/cu.c,v 1.4 1999/08/28 01:06:33 peter Exp $
  31  */
  32
  33 #include "tip.h"
  34 #include <libutil.h>
  35
  36 /*
  37  * Botch the interface to look like cu's
  38  */
  39 void
  40 cumain(int argc, char *argv[])
  41 {
  42         int i;
  43         static char sbuf[12];
  44
  45         if (argc < 2) {
  46                 printf("usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]\n");
  47                 exit(8);
  48         }
  49         CU = DV = NULL;
  50         BR = DEFBR;
  51         for (; argc > 1; argv++, argc--) {
  52                 if (argv[1][0] != '-')
  53                         PN = argv[1];
  54                 else switch (argv[1][1]) {
  55
  56                 case 't':
  57                         HW = 1, DU = -1;
  58                         --argc;
  59                         continue;
  60
  61                 case 'a':
  62                         CU = argv[2]; ++argv; --argc;
  63                         break;
  64
  65                 case 's':
  66                         if (argc < 3 || speed(atoi(argv[2])) == 0) {
  67                                 fprintf(stderr, "cu: unsupported speed %s\n",
  68                                         argv[2]);
  69                                 exit(3);
  70                         }
  71                         BR = atoi(argv[2]); ++argv; --argc;
  72                         break;
  73
  74                 case 'l':
  75                         DV = argv[2]; ++argv; --argc;
  76                         break;
  77
  78                 case '0': case '1': case '2': case '3': case '4':
  79                 case '5': case '6': case '7': case '8': case '9':
  80                         if (CU)
  81                                 CU[strlen(CU)-1] = argv[1][1];
  82                         if (DV)
  83                                 DV[strlen(DV)-1] = argv[1][1];
  84                         break;
  85
  86                 default:
  87                         printf("Bad flag %s", argv[1]);
  88                         break;
  89                 }
  90         }
  91         signal(SIGINT, cleanup);
  92         signal(SIGQUIT, cleanup);
  93         signal(SIGHUP, cleanup);
  94         signal(SIGTERM, cleanup);
  95
  96         /*
  97          * The "cu" host name is used to define the
  98          * attributes of the generic dialer.
  99          */
 100         (void)snprintf(sbuf, sizeof(sbuf), "cu%ld", BR);
 101         if ((i = hunt(sbuf)) == 0) {
 102                 printf("all ports busy\n");
 103                 exit(3);
 104         }
 105         if (i == -1) {
 106                 printf("link down\n");
 107                 (void)uu_unlock(uucplock);
 108                 exit(3);
 109         }
 110         setbuf(stdout, NULL);
 111         loginit();
 112         user_uid();
 113         vinit();
 114         setparity("none");
 115         boolean(value(VERBOSE)) = 0;
 116         if (HW)
 117                 ttysetup(speed(BR));
 118         if (connect()) {
 119                 printf("Connect failed\n");
 120                 daemon_uid();
 121                 (void)uu_unlock(uucplock);
 122                 exit(1);
 123         }
 124         if (!HW)
 125                 ttysetup(speed(BR));
 126         exit(0);
 127 }