2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
36 static char sccsid[] = "@(#)init_disp.c 8.2 (Berkeley) 2/16/94";
38 static const char rcsid[] =
39 "$FreeBSD: src/usr.bin/talk/init_disp.c,v 1.11.2.1 2001/07/30 10:31:29 dd Exp $";
43 * Initialization code for the display package,
44 * as well as the signal handling routines.
56 * Make sure the callee can write to the screen
64 if ((tty = ttyname(STDERR_FILENO)) == NULL)
66 if (stat(tty, &sb) < 0)
68 if (!(sb.st_mode & S_IWGRP))
69 errx(1, "The callee cannot write to this terminal, use \"mesg y\".");
73 * Set up curses, catch the appropriate signals,
74 * and build the various windows.
81 if (initscr() == NULL)
82 errx(1, "Terminal type unset or lacking necessary features.");
83 (void) sigaction(SIGTSTP, (struct sigaction *)0, &sa);
84 sigaddset(&sa.sa_mask, SIGALRM);
85 (void) sigaction(SIGTSTP, &sa, (struct sigaction *)0);
86 curses_initialized = 1;
91 signal(SIGINT, sig_sent);
92 signal(SIGPIPE, sig_sent);
93 /* curses takes care of ^Z */
94 my_win.x_nlines = LINES / 2;
95 my_win.x_ncols = COLS;
96 my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0);
97 idlok(my_win.x_win, TRUE);
98 scrollok(my_win.x_win, TRUE);
101 his_win.x_nlines = LINES / 2 - 1;
102 his_win.x_ncols = COLS;
103 his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols,
104 my_win.x_nlines+1, 0);
105 idlok(my_win.x_win, TRUE);
106 scrollok(his_win.x_win, TRUE);
107 wclear(his_win.x_win);
109 line_win = newwin(1, COLS, my_win.x_nlines, 0);
110 #if defined(hline) || defined(whline) || defined(NCURSES_VERSION)
111 whline(line_win, 0, COLS);
113 box(line_win, '-', '-');
116 /* let them know we are working on it */
117 current_state = "No connection yet";
121 * Trade edit characters with the other talk. By agreement
122 * the first three characters each talk transmits after
123 * connection are the three edit characters.
133 my_win.cerase = tio.c_cc[VERASE];
134 my_win.kill = tio.c_cc[VKILL];
135 my_win.werase = tio.c_cc[VWERASE];
136 if (my_win.cerase == (char)_POSIX_VDISABLE)
137 my_win.kill = CERASE;
138 if (my_win.kill == (char)_POSIX_VDISABLE)
140 if (my_win.werase == (char)_POSIX_VDISABLE)
141 my_win.werase = CWERASE;
142 buf[0] = my_win.cerase;
143 buf[1] = my_win.kill;
144 buf[2] = my_win.werase;
145 cc = write(sockt, buf, sizeof(buf));
146 if (cc != sizeof(buf) )
147 p_error("Lost the connection");
148 cc = read(sockt, buf, sizeof(buf));
149 if (cc != sizeof(buf) )
150 p_error("Lost the connection");
151 his_win.cerase = buf[0];
152 his_win.kill = buf[1];
153 his_win.werase = buf[2];
162 message("Connection closing. Exiting");
167 * All done talking...hang up the phone and reset terminal thingy's
173 if (curses_initialized) {
174 wmove(his_win.x_win, his_win.x_nlines-1, 0);
175 wclrtoeol(his_win.x_win);
176 wrefresh(his_win.x_win);
179 if (invitation_waiting)