1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7 #ifndef lint 8 static char sccsid[] = "@(#)init_disp.c 5.1 (Berkeley) 6/6/85"; 9 #endif not lint 10 11 /* 12 * Initialization code for the display package, 13 * as well as the signal handling routines. 14 */ 15 16 #define USE_OLD_TTY 17 #include "talk.h" 18 #include <signal.h> 19 20 /* 21 * Set up curses, catch the appropriate signals, 22 * and build the various windows. 23 */ 24 init_display() 25 { 26 void sig_sent(); 27 struct sigvec sigv; 28 29 initscr(); 30 (void) sigvec(SIGTSTP, (struct sigvec *)0, &sigv); 31 sigv.sv_mask |= sigmask(SIGALRM); 32 (void) sigvec(SIGTSTP, &sigv, (struct sigvec *)0); 33 curses_initialized = 1; 34 clear(); 35 refresh(); 36 noecho(); 37 crmode(); 38 signal(SIGINT, sig_sent); 39 signal(SIGPIPE, sig_sent); 40 /* curses takes care of ^Z */ 41 my_win.x_nlines = LINES / 2; 42 my_win.x_ncols = COLS; 43 my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0); 44 scrollok(my_win.x_win, FALSE); 45 wclear(my_win.x_win); 46 47 his_win.x_nlines = LINES / 2 - 1; 48 his_win.x_ncols = COLS; 49 his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols, 50 my_win.x_nlines+1, 0); 51 scrollok(his_win.x_win, FALSE); 52 wclear(his_win.x_win); 53 54 line_win = newwin(1, COLS, my_win.x_nlines, 0); 55 box(line_win, '-', '-'); 56 wrefresh(line_win); 57 /* let them know we are working on it */ 58 current_state = "No connection yet"; 59 } 60 61 /* 62 * Trade edit characters with the other talk. By agreement 63 * the first three characters each talk transmits after 64 * connection are the three edit characters. 65 */ 66 set_edit_chars() 67 { 68 char buf[3]; 69 int cc; 70 struct sgttyb tty; 71 struct ltchars ltc; 72 73 ioctl(0, TIOCGETP, &tty); 74 ioctl(0, TIOCGLTC, (struct sgttyb *)<c); 75 my_win.cerase = tty.sg_erase; 76 my_win.kill = tty.sg_kill; 77 if (ltc.t_werasc == (char) -1) 78 my_win.werase = '\027'; /* control W */ 79 else 80 my_win.werase = ltc.t_werasc; 81 buf[0] = my_win.cerase; 82 buf[1] = my_win.kill; 83 buf[2] = my_win.werase; 84 cc = write(sockt, buf, sizeof(buf)); 85 if (cc != sizeof(buf) ) 86 p_error("Lost the connection"); 87 cc = read(sockt, buf, sizeof(buf)); 88 if (cc != sizeof(buf) ) 89 p_error("Lost the connection"); 90 his_win.cerase = buf[0]; 91 his_win.kill = buf[1]; 92 his_win.werase = buf[2]; 93 } 94 95 void 96 sig_sent() 97 { 98 99 message("Connection closing. Exiting"); 100 quit(); 101 } 102 103 /* 104 * All done talking...hang up the phone and reset terminal thingy's 105 */ 106 quit() 107 { 108 109 if (curses_initialized) { 110 wmove(his_win.x_win, his_win.x_nlines-1, 0); 111 wclrtoeol(his_win.x_win); 112 wrefresh(his_win.x_win); 113 endwin(); 114 } 115 if (invitation_waiting) 116 send_delete(); 117 exit(0); 118 } 119