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 <sgtty.h> 19 #include <signal.h> 20 21 /* 22 * Set up curses, catch the appropriate signals, 23 * and build the various windows. 24 */ 25 init_display() 26 { 27 void sig_sent(); 28 struct sigvec sigv; 29 30 initscr(); 31 (void) sigvec(SIGTSTP, (struct sigvec *)0, &sigv); 32 sigv.sv_mask |= sigmask(SIGALRM); 33 (void) sigvec(SIGTSTP, &sigv, (struct sigvec *)0); 34 curses_initialized = 1; 35 clear(); 36 refresh(); 37 noecho(); 38 crmode(); 39 signal(SIGINT, sig_sent); 40 signal(SIGPIPE, sig_sent); 41 /* curses takes care of ^Z */ 42 my_win.x_nlines = LINES / 2; 43 my_win.x_ncols = COLS; 44 my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0); 45 scrollok(my_win.x_win, FALSE); 46 wclear(my_win.x_win); 47 48 his_win.x_nlines = LINES / 2 - 1; 49 his_win.x_ncols = COLS; 50 his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols, 51 my_win.x_nlines+1, 0); 52 scrollok(his_win.x_win, FALSE); 53 wclear(his_win.x_win); 54 55 line_win = newwin(1, COLS, my_win.x_nlines, 0); 56 box(line_win, '-', '-'); 57 wrefresh(line_win); 58 /* let them know we are working on it */ 59 current_state = "No connection yet"; 60 } 61 62 /* 63 * Trade edit characters with the other talk. By agreement 64 * the first three characters each talk transmits after 65 * connection are the three edit characters. 66 */ 67 set_edit_chars() 68 { 69 char buf[3]; 70 int cc; 71 struct sgttyb tty; 72 struct ltchars ltc; 73 74 ioctl(0, TIOCGETP, &tty); 75 ioctl(0, TIOCGLTC, (struct sgttyb *)<c); 76 my_win.cerase = tty.sg_erase; 77 my_win.kill = tty.sg_kill; 78 if (ltc.t_werasc == (char) -1) 79 my_win.werase = '\027'; /* control W */ 80 else 81 my_win.werase = ltc.t_werasc; 82 buf[0] = my_win.cerase; 83 buf[1] = my_win.kill; 84 buf[2] = my_win.werase; 85 cc = write(sockt, buf, sizeof(buf)); 86 if (cc != sizeof(buf) ) 87 p_error("Lost the connection"); 88 cc = read(sockt, buf, sizeof(buf)); 89 if (cc != sizeof(buf) ) 90 p_error("Lost the connection"); 91 his_win.cerase = buf[0]; 92 his_win.kill = buf[1]; 93 his_win.werase = buf[2]; 94 } 95 96 void 97 sig_sent() 98 { 99 100 message("Connection closing. Exiting"); 101 quit(); 102 } 103 104 /* 105 * All done talking...hang up the phone and reset terminal thingy's 106 */ 107 quit() 108 { 109 110 if (curses_initialized) { 111 wmove(his_win.x_win, his_win.x_nlines-1, 0); 112 wclrtoeol(his_win.x_win); 113 wrefresh(his_win.x_win); 114 endwin(); 115 } 116 if (invitation_waiting) 117 send_delete(); 118 exit(0); 119 } 120