/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 1994 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*      Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T     */
/*        All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

/*
 * init_disp contains the initialization code for the display package,
 * as well as the signal handling routines
 */

#include "talk.h"
#include <signal.h>
#include <libintl.h>

#ifdef SYSV
#define signal(s, f)    sigset(s, f)
#endif /* SYSV */

static void sig_sent();

/*
 * set up curses, catch the appropriate signals, and build the
 * various windows
 */

void
init_display()
{
        initscr();
        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);

        rem_win.x_nlines = LINES / 2 - 1;
        rem_win.x_ncols = COLS;
        rem_win.x_win = newwin(rem_win.x_nlines, rem_win.x_ncols,
                                                my_win.x_nlines+1, 0);
        scrollok(rem_win.x_win, FALSE);
        wclear(rem_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 = gettext("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()
{
        char buf[3];
        int cc;
#ifdef SYSV
        struct termios tty;
        ioctl(0, TCGETS, (struct termios *)&tty);

        buf[0] = my_win.cerase = tty.c_cc[VERASE];
                                        /* for SVID should be VERSE */
        buf[1] = my_win.kill = tty.c_cc[VKILL];
        buf[2] = my_win.werase = tty.c_cc[VWERASE];
                                        /* for SVID should be VWERSE */
#else /* ! SYSV */
        struct sgttyb tty;
        struct ltchars ltc;

        gtty(0, &tty);

        ioctl(0, TIOCGLTC, (struct sgttyb *)&ltc);

        my_win.cerase = tty.sg_erase;
        my_win.kill = tty.sg_kill;

        if (ltc.t_werasc == (char)-1) {
                my_win.werase = '\027';  /* control W */
        } else {
                my_win.werase = ltc.t_werasc;
        }

        buf[0] = my_win.cerase;
        buf[1] = my_win.kill;
        buf[2] = my_win.werase;
#endif /* SYSV */

        cc = write(sockt, buf, sizeof (buf));

        if (cc != sizeof (buf)) {
                p_error(gettext("Lost the connection"));
        }

        cc = read(sockt, buf, sizeof (buf));

        if (cc != sizeof (buf)) {
                p_error(gettext("Lost the connection"));
        }

        rem_win.cerase = buf[0];
        rem_win.kill = buf[1];
        rem_win.werase = buf[2];
}

static void
sig_sent()
{
        message(gettext("Connection closing. Exiting"));
        quit();
}

/*
 * All done talking...hang up the phone and reset terminal thingy's
 */

void
quit()
{
        if (curses_initialized) {
                wmove(rem_win.x_win, rem_win.x_nlines-1, 0);
                wclrtoeol(rem_win.x_win);
                wrefresh(rem_win.x_win);
                endwin();
        }

        if (invitation_waiting) {
                send_delete();
        }

        exit(0);
}