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[unix-history] / usr / src / usr.bin / tip / cu.c

/*
* Copyright (c) 1983 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley.  The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/

#ifndef lint
static char sccsid[] = "@(#)cu.c        5.7 (Berkeley) %G%";
#endif /* not lint */

#include "tip.h"

int     cleanup();
int     timeout();

/*
* Botch the interface to look like cu's
*/
cumain(argc, argv)
       char *argv[];
{
       register int i;
       static char sbuf[12];

       if (argc < 2) {
               printf("usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]\n");
               exit(8);
       }
       CU = DV = NOSTR;
       BR = DEFBR;
       for (; argc > 1; argv++, argc--) {
               if (argv[1][0] != '-')
                       PN = argv[1];
               else switch (argv[1][1]) {

               case 't':
                       HW = 1, DU = -1;
                       --argc;
                       continue;

               case 'a':
                       CU = argv[2]; ++argv; --argc;
                       break;

               case 's':
                       if (argc < 3 || speed(atoi(argv[2])) == 0) {
                               fprintf(stderr, "cu: unsupported speed %s\n",
                                       argv[2]);
                               exit(3);
                       }
                       BR = atoi(argv[2]); ++argv; --argc;
                       break;

               case 'l':
                       DV = argv[2]; ++argv; --argc;
                       break;

               case '0': case '1': case '2': case '3': case '4':
               case '5': case '6': case '7': case '8': case '9':
                       if (CU)
                               CU[strlen(CU)-1] = argv[1][1];
                       if (DV)
                               DV[strlen(DV)-1] = argv[1][1];
                       break;

               default:
                       printf("Bad flag %s", argv[1]);
                       break;
               }
       }
       signal(SIGINT, cleanup);
       signal(SIGQUIT, cleanup);
       signal(SIGHUP, cleanup);
       signal(SIGTERM, cleanup);

       /*
        * The "cu" host name is used to define the
        * attributes of the generic dialer.
        */
       (void)sprintf(sbuf, "cu%d", BR);
       if ((i = hunt(sbuf)) == 0) {
               printf("all ports busy\n");
               exit(3);
       }
       if (i == -1) {
               printf("link down\n");
               (void)uu_unlock(uucplock);
               exit(3);
       }
       setbuf(stdout, NULL);
       loginit();
       user_uid();
       vinit();
       setparity("none");
       boolean(value(VERBOSE)) = 0;
       if (HW)
               ttysetup(speed(BR));
       if (connect()) {
               printf("Connect failed\n");
               daemon_uid();
               (void)uu_unlock(uucplock);
               exit(1);
       }
       if (!HW)
               ttysetup(speed(BR));
}