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cu.c revision 1.1 
      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[] = "@(#)cu.c	5.9 (Berkeley) 6/1/90";
     36 #endif /* not lint */
     37 
     38 #include "tip.h"
     39 
     40 void	cleanup();
     41 
     42 /*
     43  * Botch the interface to look like cu's
     44  */
     45 cumain(argc, argv)
     46 	char *argv[];
     47 {
     48 	register int i;
     49 	static char sbuf[12];
     50 
     51 	if (argc < 2) {
     52 		printf("usage: cu telno [-t] [-s speed] [-a acu] [-l line] [-#]\n");
     53 		exit(8);
     54 	}
     55 	CU = DV = NOSTR;
     56 	BR = DEFBR;
     57 	for (; argc > 1; argv++, argc--) {
     58 		if (argv[1][0] != '-')
     59 			PN = argv[1];
     60 		else switch (argv[1][1]) {
     61 
     62 		case 't':
     63 			HW = 1, DU = -1;
     64 			--argc;
     65 			continue;
     66 
     67 		case 'a':
     68 			CU = argv[2]; ++argv; --argc;
     69 			break;
     70 
     71 		case 's':
     72 			if (argc < 3 || speed(atoi(argv[2])) == 0) {
     73 				fprintf(stderr, "cu: unsupported speed %s\n",
     74 					argv[2]);
     75 				exit(3);
     76 			}
     77 			BR = atoi(argv[2]); ++argv; --argc;
     78 			break;
     79 
     80 		case 'l':
     81 			DV = argv[2]; ++argv; --argc;
     82 			break;
     83 
     84 		case '0': case '1': case '2': case '3': case '4':
     85 		case '5': case '6': case '7': case '8': case '9':
     86 			if (CU)
     87 				CU[strlen(CU)-1] = argv[1][1];
     88 			if (DV)
     89 				DV[strlen(DV)-1] = argv[1][1];
     90 			break;
     91 
     92 		default:
     93 			printf("Bad flag %s", argv[1]);
     94 			break;
     95 		}
     96 	}
     97 	signal(SIGINT, cleanup);
     98 	signal(SIGQUIT, cleanup);
     99 	signal(SIGHUP, cleanup);
    100 	signal(SIGTERM, cleanup);
    101 
    102 	/*
    103 	 * The "cu" host name is used to define the
    104 	 * attributes of the generic dialer.
    105 	 */
    106 	(void)sprintf(sbuf, "cu%d", BR);
    107 	if ((i = hunt(sbuf)) == 0) {
    108 		printf("all ports busy\n");
    109 		exit(3);
    110 	}
    111 	if (i == -1) {
    112 		printf("link down\n");
    113 		(void)uu_unlock(uucplock);
    114 		exit(3);
    115 	}
    116 	setbuf(stdout, NULL);
    117 	loginit();
    118 	user_uid();
    119 	vinit();
    120 	setparity("none");
    121 	boolean(value(VERBOSE)) = 0;
    122 	if (HW)
    123 		ttysetup(speed(BR));
    124 	if (connect()) {
    125 		printf("Connect failed\n");
    126 		daemon_uid();
    127 		(void)uu_unlock(uucplock);
    128 		exit(1);
    129 	}
    130 	if (!HW)
    131 		ttysetup(speed(BR));
    132 }
    133