diff options
Diffstat (limited to 'usr.bin/talk/init_disp.c')
| -rw-r--r-- | usr.bin/talk/init_disp.c | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/usr.bin/talk/init_disp.c b/usr.bin/talk/init_disp.c new file mode 100644 index 0000000..a006705 --- /dev/null +++ b/usr.bin/talk/init_disp.c @@ -0,0 +1,153 @@ +/* $NetBSD: init_disp.c,v 1.12 2011/09/06 18:32:03 joerg 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. 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. + */ + +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static char sccsid[] = "@(#)init_disp.c 8.2 (Berkeley) 2/16/94"; +#endif +__RCSID("$NetBSD: init_disp.c,v 1.12 2011/09/06 18:32:03 joerg Exp $"); +#endif /* not lint */ + +/* + * Initialization code for the display package, + * as well as the signal handling routines. + */ + +#include "talk.h" +#include <sys/ioctl.h> +#include <sys/ioctl_compat.h> +#include <err.h> +#include <signal.h> +#include <termios.h> +#include <stdlib.h> +#include <unistd.h> + +/* + * Set up curses, catch the appropriate signals, + * and build the various windows. + */ +void +init_display(void) +{ + struct sigaction sa; + + if (initscr() == NULL) + errx(1, "Terminal type unset or lacking necessary features."); + (void)sigaction(SIGTSTP, NULL, &sa); + sigaddset(&sa.sa_mask, SIGALRM); + (void)sigaction(SIGTSTP, &sa, NULL); + curses_initialized = 1; + clear(); + refresh(); + noecho(); + cbreak(); + 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); + 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 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(int dummy) +{ + + message("Connection closing. Exiting"); + quit(); +} + +/* + * All done talking...hang up the phone and reset terminal thingy's + */ +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); +} |