BSD 4_4 release

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

/*
* Copyright (c) 1983, 1993
*      The Regents of the University of California.  All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/

#ifndef lint
static char sccsid[] = "@(#)cu.c        8.1 (Berkeley) 6/6/93";
#endif /* not lint */

#include "tip.h"

void    cleanup();

/*
* 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));
}