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cu.c revision 1.9 
      1 /*	$NetBSD: cu.c,v 1.9 2006/04/02 06:11:45 tls Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1983, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 #ifndef lint
     34 #if 0
     35 static char sccsid[] = "@(#)cu.c	8.1 (Berkeley) 6/6/93";
     36 #endif
     37 __RCSID("$NetBSD: cu.c,v 1.9 2006/04/02 06:11:45 tls Exp $");
     38 #endif /* not lint */
     39 
     40 #include "tip.h"
     41 
     42 /*
     43  * Botch the interface to look like cu's
     44  */
     45 int
     46 cumain(argc, argv)
     47 	int argc;
     48 	char *argv[];
     49 {
     50 	int i;
     51 	static char sbuf[12];
     52 
     53 	if (argc < 2) {
     54 		fprintf(stderr,
     55 	    "usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]\n");
     56 		exit(8);
     57 	}
     58 	CU = DV = NULL;
     59 	BR = DEFBR;
     60 	for (; argc > 1; argv++, argc--) {
     61 		if (argv[1][0] != '-')
     62 			PN = argv[1];
     63 		else switch (argv[1][1]) {
     64 
     65 		case 't':
     66 			HW = 1, DU = -1;
     67 			--argc;
     68 			continue;
     69 
     70 		case 'a':
     71 			CU = argv[2]; ++argv; --argc;
     72 			break;
     73 
     74 		case 's':
     75 			if (argc < 3 || speed(atoi(argv[2])) == 0) {
     76 				errx(3, "unsupported speed %s", argv[2]);
     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)snprintf(sbuf, sizeof sbuf, "cu%d", (int)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 	setboolean(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 	exit(0);
    134 }
    135