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- /*
- * Copyright (c) 1983 Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. 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 BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
- /*
- * From: @(#)init_disp.c 5.4 (Berkeley) 6/1/90
- */
- char id_rcsid[] =
- "$Id: init_disp.c,v 1.4 1996/07/20 20:59:41 dholland Exp $";
-
- /*
- * Initialization code for the display package,
- * as well as the signal handling routines.
- */
-
- #include <stdio.h>
- #include <unistd.h>
- #include <signal.h>
- #include <termios.h>
-
- #include "talk.h"
-
- void sig_sent();
-
- /*
- * Set up curses, catch the appropriate signals,
- * and build the various windows.
- */
- void
- init_display(void)
- {
- struct sigaction sigac;
-
- LINES = COLS = 0;
- if (initscr() == NULL) {
- printf("initscr failed: TERM is unset or unknown terminal type.\n");
- exit(-1);
- }
- (void) sigaction(SIGTSTP, NULL, &sigac);
- sigac.sa_mask |= sigmask(SIGALRM);
- (void) sigaction(SIGTSTP, &sigac, NULL);
- curses_initialized = 1;
- clear();
- refresh();
- noecho();
- crmode();
- signal(SIGINT, sig_sent);
- signal(SIGPIPE, sig_sent);
- /* curses takes care of ^Z */
- signal(SIGTSTP, SIG_DFL); /* No, it doesn't. */
- my_win.x_nlines = LINES / 2;
- my_win.x_ncols = COLS;
- my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0);
- scrollok(my_win.x_win, FALSE);
- wclear(my_win.x_win);
-
- his_win.x_nlines = LINES / 2 - 1;
- his_win.x_ncols = COLS;
- his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols,
- my_win.x_nlines+1, 0);
- scrollok(his_win.x_win, FALSE);
- wclear(his_win.x_win);
-
- line_win = newwin(1, COLS, my_win.x_nlines, 0);
- box(line_win, '-', '-');
- wrefresh(line_win);
- /* let them know we are working on it */
- current_state = "No connection yet";
- }
-
- /*
- * Trade edit characters with the other talk. By agreement
- * the first three characters each talk transmits after
- * connection are the three edit characters.
- */
- void
- set_edit_chars(void)
- {
- char buf[3];
- int cc;
- struct termios tios;
-
- tcgetattr(0, &tios);
- my_win.cerase = tios.c_cc[VERASE];
- my_win.kill = tios.c_cc[VKILL];
- my_win.werase = tios.c_cc[VWERASE];
-
- if (my_win.werase == (char) -1) {
- my_win.werase = '\027'; /* control W */
- }
-
- buf[0] = my_win.cerase;
- buf[1] = my_win.kill;
- buf[2] = my_win.werase;
- cc = write(sockt, buf, sizeof(buf));
- if (cc != sizeof(buf) )
- p_error("Lost the connection");
- cc = read(sockt, buf, sizeof(buf));
- if (cc != sizeof(buf) )
- p_error("Lost the connection");
- his_win.cerase = buf[0];
- his_win.kill = buf[1];
- his_win.werase = buf[2];
- }
-
- void
- sig_sent(void)
- {
- message("Connection closing. Exiting");
- quit();
- }
-
- /*
- * All done talking...hang up the phone and reset terminal thingy
- */
- void
- quit(void)
- {
- if (curses_initialized) {
- wmove(his_win.x_win, his_win.x_nlines-1, 0);
- wclrtoeol(his_win.x_win);
- wrefresh(his_win.x_win);
- endwin();
- }
- if (invitation_waiting)
- send_delete();
- exit(0);
- }
-