4.3BSD-Reno/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: (1) source distributions retain this entire copyright
 * notice and comment, and (2) distributions including binaries display
 * the following acknowledgement:  ``This product includes software
 * developed by the University of California, Berkeley and its contributors''
 * in the documentation or other materials provided with the distribution
 * and in all advertising materials mentioning features or use of this
 * software. 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 ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#ifndef lint
static char sccsid[] = "@(#)cu.c	5.9 (Berkeley) 6/1/90";
#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));
}