/* $OpenBSD: init_disp.c,v 1.3 1996/06/26 05:40:22 deraadt Exp $ */ /* $NetBSD: init_disp.c,v 1.6 1994/12/09 02:14:17 jtc Exp $ */ /* * Copyright (c) 1983, 1993 * The 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. */ #ifndef lint #if 0 static char sccsid[] = "@(#)init_disp.c 8.2 (Berkeley) 2/16/94"; #endif static char rcsid[] = "$OpenBSD: init_disp.c,v 1.3 1996/06/26 05:40:22 deraadt Exp $"; #endif /* not lint */ /* * Initialization code for the display package, * as well as the signal handling routines. */ #include #include #include #include #include #include "talk.h" /* * Set up curses, catch the appropriate signals, * and build the various windows. */ init_display() { void sig_sent(); struct sigvec sigv; if (initscr() == NULL) errx(1, "Terminal type unset or lacking necessary features."); (void) sigvec(SIGTSTP, (struct sigvec *)0, &sigv); sigv.sv_mask |= sigmask(SIGALRM); (void) sigvec(SIGTSTP, &sigv, (struct sigvec *)0); curses_initialized = 1; clear(); refresh(); noecho(); crmode(); signal(SIGINT, sig_sent); signal(SIGPIPE, sig_sent); /* curses takes care of ^Z */ 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); #ifdef NCURSES_VERSION whline(line_win, '-', COLS); #else box(line_win, '-', '-'); #endif 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. */ set_edit_chars() { char buf[3]; int cc; struct termios tty; tcgetattr(0, &tty); my_win.cerase = tty.c_cc[VERASE]; my_win.kill = tty.c_cc[VKILL]; if (tty.c_cc[VWERASE] == (unsigned char) -1) my_win.werase = '\027'; /* control W */ else my_win.werase = tty.c_cc[VWERASE]; 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() { message("Connection closing. Exiting"); quit(); } /* * All done talking...hang up the phone and reset terminal thingy's */ quit() { 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); }