xref: /freebsd/usr.bin/talk/talk.c (revision 031beb4e239bfce798af17f5fe8dba8bcaf13d99)
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 
33 #ifndef lint
34 static const char sccsid[] = "@(#)talk.c	8.1 (Berkeley) 6/6/93";
35 #endif
36 
37 #ifndef lint
38 static const char copyright[] =
39 "@(#) Copyright (c) 1983, 1993\n\
40 	The Regents of the University of California.  All rights reserved.\n";
41 #endif
42 
43 #include <locale.h>
44 #include <unistd.h>
45 
46 #include "talk.h"
47 
48 /*
49  * talk:	A visual form of write. Using sockets, a two way
50  *		connection is set up between the two people talking.
51  *		With the aid of curses, the screen is split into two
52  *		windows, and each users text is added to the window,
53  *		one character at a time...
54  *
55  *		Written by Kipp Hickman
56  *
57  *		Modified to run under 4.1a by Clem Cole and Peter Moore
58  *		Modified to run between hosts by Peter Moore, 8/19/82
59  *		Modified to run under 4.1c by Peter Moore 3/17/83
60  *		Fixed to not run with unwriteable terminals MRVM 28/12/94
61  */
62 
63 int
64 main(int argc, char **argv)
65 {
66 	(void) setlocale(LC_CTYPE, "");
67 
68 	get_names(argc, argv);
69 	setproctitle(" ");
70 	check_writeable();
71 	init_display();
72 	open_ctl();
73 	open_sockt();
74 	start_msgs();
75 	if (!check_local())
76 		invite_remote();
77 	end_msgs();
78 	set_edit_chars();
79 	talk();
80 	return 0;
81 }
82