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
34 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 static const char sccsid[] = "@(#)init_disp.c 8.2 (Berkeley) 2/16/94";
43 * Initialization code for the display package,
44 * as well as the signal handling routines.
58 * Make sure the callee can write to the screen
66 if ((tty = ttyname(STDERR_FILENO)) == NULL)
68 if (stat(tty, &sb) < 0)
70 if (!(sb.st_mode & S_IWGRP))
71 errx(1, "The callee cannot write to this terminal, use \"mesg y\".");
75 * Set up curses, catch the appropriate signals,
76 * and build the various windows.
83 if (initscr() == NULL)
84 errx(1, "Terminal type unset or lacking necessary features.");
85 (void) sigaction(SIGTSTP, (struct sigaction *)0, &sa);
86 sigaddset(&sa.sa_mask, SIGALRM);
87 (void) sigaction(SIGTSTP, &sa, (struct sigaction *)0);
88 curses_initialized = 1;
93 signal(SIGINT, sig_sent);
94 signal(SIGPIPE, sig_sent);
95 /* curses takes care of ^Z */
96 my_win.x_nlines = LINES / 2;
97 my_win.x_ncols = COLS;
98 my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0);
99 idlok(my_win.x_win, TRUE);
100 scrollok(my_win.x_win, TRUE);
101 wclear(my_win.x_win);
103 his_win.x_nlines = LINES / 2 - 1;
104 his_win.x_ncols = COLS;
105 his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols,
106 my_win.x_nlines+1, 0);
107 idlok(my_win.x_win, TRUE);
108 scrollok(his_win.x_win, TRUE);
109 wclear(his_win.x_win);
111 line_win = newwin(1, COLS, my_win.x_nlines, 0);
112 #if defined(hline) || defined(whline) || defined(NCURSES_VERSION)
113 whline(line_win, 0, COLS);
115 box(line_win, '-', '-');
118 /* let them know we are working on it */
119 current_state = "No connection yet";
123 * Trade edit characters with the other talk. By agreement
124 * the first three characters each talk transmits after
125 * connection are the three edit characters.
135 my_win.cerase = tio.c_cc[VERASE];
136 my_win.kill = tio.c_cc[VKILL];
137 my_win.werase = tio.c_cc[VWERASE];
138 if (my_win.cerase == (char)_POSIX_VDISABLE)
139 my_win.kill = CERASE;
140 if (my_win.kill == (char)_POSIX_VDISABLE)
142 if (my_win.werase == (char)_POSIX_VDISABLE)
143 my_win.werase = CWERASE;
144 buf[0] = my_win.cerase;
145 buf[1] = my_win.kill;
146 buf[2] = my_win.werase;
147 cc = write(sockt, buf, sizeof(buf));
148 if (cc != sizeof(buf) )
149 p_error("Lost the connection");
150 cc = read(sockt, buf, sizeof(buf));
151 if (cc != sizeof(buf) )
152 p_error("Lost the connection");
153 his_win.cerase = buf[0];
154 his_win.kill = buf[1];
155 his_win.werase = buf[2];
164 message("Connection closing. Exiting");
169 * All done talking...hang up the phone and reset terminal thingy's
175 if (curses_initialized) {
176 wmove(his_win.x_win, his_win.x_nlines-1, 0);
177 wclrtoeol(his_win.x_win);
178 wrefresh(his_win.x_win);
181 if (invitation_waiting)