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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 1.9 1997/06/08 20:13:51 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"
static void sig_sent(int);
/*
* 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);
sigaddset(&sigac.sa_mask, SIGALRM);
(void) sigaction(SIGTSTP, &sigac, NULL);
curses_initialized = 1;
clear();
refresh();
noecho();
cbreak();
signal(SIGINT, sig_sent);
signal(SIGPIPE, sig_sent);
/* curses takes care of SIGTSTP (^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 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 ((unsigned char)my_win.werase == 0xff) {
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(int signum)
{
(void)signum;
message("Connection closing. Exiting");
quit(1);
}
/*
* All done talking...hang up the phone and reset terminal thingy
*/
void
quit(int direct)
{
const char *rmcup, *smcup;
if (curses_initialized) {
rmcup = tigetstr("rmcup");
smcup = tigetstr("smcup");
if ((direct != 1) && (rmcup || smcup)) {
raw();
signal(SIGALRM, SIG_IGN);
signal(SIGINT, SIG_DFL);
wmove(my_win.x_win, current_line%my_win.x_nlines+1, 0);
wprintw(my_win.x_win, "[Press any key to continue]\n");
wrefresh(my_win.x_win);
/* alternative screen, prompt before exit */
wgetch(my_win.x_win);
}
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);
}
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