xref: /freebsd/usr.bin/talk/talk.c (revision 8881d206f4e68b564c2c5f50fc717086fc3e827a)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
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 
34 __FBSDID("$FreeBSD$");
35 
36 #ifndef lint
37 static const char sccsid[] = "@(#)talk.c	8.1 (Berkeley) 6/6/93";
38 #endif
39 
40 #ifndef lint
41 static const char copyright[] =
42 "@(#) Copyright (c) 1983, 1993\n\
43 	The Regents of the University of California.  All rights reserved.\n";
44 #endif
45 
46 #include <locale.h>
47 #include <unistd.h>
48 
49 #include "talk.h"
50 
51 /*
52  * talk:	A visual form of write. Using sockets, a two way
53  *		connection is set up between the two people talking.
54  *		With the aid of curses, the screen is split into two
55  *		windows, and each users text is added to the window,
56  *		one character at a time...
57  *
58  *		Written by Kipp Hickman
59  *
60  *		Modified to run under 4.1a by Clem Cole and Peter Moore
61  *		Modified to run between hosts by Peter Moore, 8/19/82
62  *		Modified to run under 4.1c by Peter Moore 3/17/83
63  *		Fixed to not run with unwriteable terminals MRVM 28/12/94
64  */
65 
66 int
67 main(int argc, char **argv)
68 {
69 	(void) setlocale(LC_CTYPE, "");
70 
71 	get_names(argc, argv);
72 	setproctitle(" ");
73 	check_writeable();
74 	init_display();
75 	open_ctl();
76 	open_sockt();
77 	start_msgs();
78 	if (!check_local())
79 		invite_remote();
80 	end_msgs();
81 	set_edit_chars();
82 	talk();
83 	return 0;
84 }
85