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- /*
- * 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
- static char sccsid[] = "@(#)init_disp.c 8.2 (Berkeley) 2/16/94";
- #endif /* not lint */
-
- /*
- * Initialization code for the display package,
- * as well as the signal handling routines.
- */
-
- #ifdef HAVE_CONFIG_H
- #include <config.h>
- #endif
-
- #ifdef HAVE_TERMIOS_H
- #include <termios.h>
- #else
- #include <sys/ioctl.h>
- #ifdef HAVE_SYS_IOCTL_COMPAT_H
- #include <sys/ioctl_compat.h>
- #endif
- #endif
-
- #include <signal.h>
- #include <err.h>
- #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);
- 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.
- */
- set_edit_chars()
- {
- int cc;
- char buf[3];
-
- #ifdef HAVE_TCGETATTR
- struct termios tty;
- cc_t disable = (cc_t)-1, erase, werase, kill;
-
- #if !defined (_POSIX_VDISABLE) && defined (HAVE_FPATHCONF) && defined (_PC_VDISABLE)
- disable = fpathconf (0, _PC_VDISABLE);
- #endif
-
- erase = werase = kill = disable;
-
- if (tcgetattr (0, &tty) >= 0) {
- erase = tty.c_cc[VERASE];
- #ifdef VWERASE
- werase = tty.c_cc[VWERASE];
- #endif
- kill = tty.c_cc[VKILL];
- }
-
- if (erase == disable)
- erase = '\177'; /* rubout */
- if (werase == disable)
- werase = '\027'; /* ^W */
- if (kill == disable)
- kill = '\025'; /* ^U */
-
- my_win.cerase = erase;
- my_win.werase = werase;
- my_win.kill = kill;
- #else /* !HAVE_TCGETATTR */
- struct sgttyb tty;
- struct ltchars ltc;
-
- ioctl(0, TIOCGETP, &tty);
- ioctl(0, TIOCGLTC, (struct sgttyb *)<c);
- 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;
- #endif /* HAVE_TCGETATTR */
-
- 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);
- }
-