usr/src/cmd/tip/cu.c

   1 /*
   2  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6 /*
   7  * Copyright (c) 1983 Regents of the University of California.
   8  * All rights reserved.  The Berkeley software License Agreement
   9  * specifies the terms and conditions for redistribution.
  10  */
  11
  12 #pragma ident   "%Z%%M% %I%     %E% SMI"
  13
  14 #include "tip.h"
  15
  16 void    cleanup(void);
  17 void    timeout(void);
  18
  19 /*
  20  * Botch the interface to look like cu's
  21  */
  22 void
  23 cumain(int argc, char *argv[])
  24 {
  25         int i;
  26         static char sbuf[14];
  27
  28         if (argc < 2) {
  29 usage:
  30                 (void) fprintf(stderr,
  31         "usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]\n");
  32                 exit(8);
  33         }
  34         CU = DV = NOSTR;
  35         for (; argc > 1; argv++, argc--) {
  36                 if (argv[1][0] != '-')
  37                         PN = argv[1];
  38                 else if (argv[1][1] != '\0' && argv[1][2] != '\0') {
  39                         (void) fprintf(stderr,
  40                             "cu: extra characters after flag: %s\n",
  41                             argv[1]);
  42                         goto usage;
  43                 } else switch (argv[1][1]) {
  44
  45                 case 't':
  46                         HW = 1, DU = -1;
  47                         --argc;
  48                         continue;
  49
  50                 case 'a':
  51                         CU = argv[2]; ++argv; --argc;
  52                         break;
  53
  54                 case 's':
  55                         if (argc < 3)
  56                                 goto usage;
  57                         if (speed(atoi(argv[2])) == 0) {
  58                                 (void) fprintf(stderr,
  59                                     "cu: unsupported speed %s\n",
  60                                     argv[2]);
  61                                 exit(3);
  62                         }
  63                         BR = atoi(argv[2]); ++argv; --argc;
  64                         break;
  65
  66                 case 'l':
  67                         DV = argv[2]; ++argv; --argc;
  68                         break;
  69
  70                 case '0': case '1': case '2': case '3': case '4':
  71                 case '5': case '6': case '7': case '8': case '9':
  72                         if (CU)
  73                                 CU[strlen(CU)-1] = argv[1][1];
  74                         if (DV)
  75                                 DV[strlen(DV)-1] = argv[1][1];
  76                         break;
  77
  78                 default:
  79                         (void) fprintf(stderr, "cu: bad flag %s\n", argv[1]);
  80                         goto usage;
  81                 }
  82         }
  83         (void) signal(SIGINT, (sig_handler_t)cleanup);
  84         (void) signal(SIGQUIT, (sig_handler_t)cleanup);
  85         (void) signal(SIGHUP, (sig_handler_t)cleanup);
  86         (void) signal(SIGTERM, (sig_handler_t)cleanup);
  87
  88         /*
  89          * The "cu" host name is used to define the
  90          * attributes of the generic dialer.
  91          */
  92         (void) snprintf(sbuf, sizeof (sbuf), "cu%d", BR);
  93         if ((i = hunt(sbuf)) == 0) {
  94                 (void) printf("all ports busy\n");
  95                 exit(3);
  96         }
  97         if (i == -1) {
  98                 (void) printf("link down\n");
  99                 delock(uucplock);
 100                 exit(3);
 101         }
 102         setbuf(stdout, NULL);
 103         loginit();
 104         gid = getgid();
 105         egid = getegid();
 106         uid = getuid();
 107         euid = geteuid();
 108         userperm();
 109         vinit();
 110         setparity("none");
 111         boolean(value(VERBOSE)) = 0;
 112         if (HW)
 113                 ttysetup(speed(BR));
 114         if (connect()) {
 115                 (void) printf("Connect failed\n");
 116                 myperm();
 117                 delock(uucplock);
 118                 exit(1);
 119         }
 120         if (!HW)
 121                 ttysetup(speed(BR));
 122 }