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cu.c revision 1.2 
      1 /*
      2  * Copyright (c) 1983 The Regents of the University of California.
      3  * 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. All advertising materials mentioning features or use of this software
     14  *    must display the following acknowledgement:
     15  *	This product includes software developed by the University of
     16  *	California, Berkeley and its contributors.
     17  * 4. Neither the name of the University nor the names of its contributors
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     31  * SUCH DAMAGE.
     32  */
     33 
     34 #ifndef lint
     35 /*static char sccsid[] = "from: @(#)cu.c	5.9 (Berkeley) 6/1/90";*/
     36 static char rcsid[] = "$Id: cu.c,v 1.2 1993/08/01 18:06:41 mycroft Exp $";
     37 #endif /* not lint */
     38 
     39 #include "tip.h"
     40 
     41 void	cleanup();
     42 
     43 /*
     44  * Botch the interface to look like cu's
     45  */
     46 cumain(argc, argv)
     47 	char *argv[];
     48 {
     49 	register int i;
     50 	static char sbuf[12];
     51 
     52 	if (argc < 2) {
     53 		printf("usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]\n");
     54 		exit(8);
     55 	}
     56 	CU = DV = NOSTR;
     57 	BR = DEFBR;
     58 	for (; argc > 1; argv++, argc--) {
     59 		if (argv[1][0] != '-')
     60 			PN = argv[1];
     61 		else switch (argv[1][1]) {
     62 
     63 		case 't':
     64 			HW = 1, DU = -1;
     65 			--argc;
     66 			continue;
     67 
     68 		case 'a':
     69 			CU = argv[2]; ++argv; --argc;
     70 			break;
     71 
     72 		case 's':
     73 			if (argc < 3 || speed(atoi(argv[2])) == 0) {
     74 				fprintf(stderr, "cu: unsupported speed %s\n",
     75 					argv[2]);
     76 				exit(3);
     77 			}
     78 			BR = atoi(argv[2]); ++argv; --argc;
     79 			break;
     80 
     81 		case 'l':
     82 			DV = argv[2]; ++argv; --argc;
     83 			break;
     84 
     85 		case '0': case '1': case '2': case '3': case '4':
     86 		case '5': case '6': case '7': case '8': case '9':
     87 			if (CU)
     88 				CU[strlen(CU)-1] = argv[1][1];
     89 			if (DV)
     90 				DV[strlen(DV)-1] = argv[1][1];
     91 			break;
     92 
     93 		default:
     94 			printf("Bad flag %s", argv[1]);
     95 			break;
     96 		}
     97 	}
     98 	signal(SIGINT, cleanup);
     99 	signal(SIGQUIT, cleanup);
    100 	signal(SIGHUP, cleanup);
    101 	signal(SIGTERM, cleanup);
    102 
    103 	/*
    104 	 * The "cu" host name is used to define the
    105 	 * attributes of the generic dialer.
    106 	 */
    107 	(void)sprintf(sbuf, "cu%d", BR);
    108 	if ((i = hunt(sbuf)) == 0) {
    109 		printf("all ports busy\n");
    110 		exit(3);
    111 	}
    112 	if (i == -1) {
    113 		printf("link down\n");
    114 		(void)uu_unlock(uucplock);
    115 		exit(3);
    116 	}
    117 	setbuf(stdout, NULL);
    118 	loginit();
    119 	user_uid();
    120 	vinit();
    121 	setparity("none");
    122 	boolean(value(VERBOSE)) = 0;
    123 	if (HW)
    124 		ttysetup(speed(BR));
    125 	if (connect()) {
    126 		printf("Connect failed\n");
    127 		daemon_uid();
    128 		(void)uu_unlock(uucplock);
    129 		exit(1);
    130 	}
    131 	if (!HW)
    132 		ttysetup(speed(BR));
    133 }
    134