1 /*- 2 * Copyright (c) 1983, 1985 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 */ 7 8 #ifndef lint 9 static char sccsid[] = "@(#)init_disp.c 5.1 (Berkeley) 6/6/85"; 10 #endif not lint 11 12 /* 13 * Initialization code for the display package, 14 * as well as the signal handling routines. 15 */ 16 17 #define USE_OLD_TTY 18 #include "talk.h" 19 #include <sgtty.h> 20 #include <stdlib.h> 21 #include <signal.h> 22 #include <unistd.h> 23 24 void sig_sent(); 25 26 /* 27 * Set up curses, catch the appropriate signals, 28 * and build the various windows. 29 */ 30 void 31 init_display() 32 { 33 struct sigvec sigv; 34 35 initscr(); 36 (void) sigvec(SIGTSTP, (struct sigvec *)0, &sigv); 37 sigv.sv_mask |= sigmask(SIGALRM); 38 (void) sigvec(SIGTSTP, &sigv, (struct sigvec *)0); 39 curses_initialized = 1; 40 clear(); 41 refresh(); 42 noecho(); 43 crmode(); 44 signal(SIGINT, sig_sent); 45 signal(SIGPIPE, sig_sent); 46 /* curses takes care of ^Z */ 47 my_win.x_nlines = LINES / 2; 48 my_win.x_ncols = COLS; 49 my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0); 50 scrollok(my_win.x_win, FALSE); 51 wclear(my_win.x_win); 52 53 his_win.x_nlines = LINES / 2 - 1; 54 his_win.x_ncols = COLS; 55 his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols, 56 my_win.x_nlines+1, 0); 57 scrollok(his_win.x_win, FALSE); 58 wclear(his_win.x_win); 59 60 line_win = newwin(1, COLS, my_win.x_nlines, 0); 61 box(line_win, '-', '-'); 62 wrefresh(line_win); 63 /* let them know we are working on it */ 64 current_state = "No connection yet"; 65 } 66 67 /* 68 * Trade edit characters with the other talk. By agreement 69 * the first three characters each talk transmits after 70 * connection are the three edit characters. 71 */ 72 void 73 set_edit_chars() 74 { 75 char buf[3]; 76 int cc; 77 struct sgttyb tty; 78 struct ltchars ltc; 79 80 ioctl(0, TIOCGETP, &tty); 81 ioctl(0, TIOCGLTC, (struct sgttyb *)<c); 82 my_win.cerase = tty.sg_erase; 83 my_win.kill = tty.sg_kill; 84 if (ltc.t_werasc == (char) -1) 85 my_win.werase = '\027'; /* control W */ 86 else 87 my_win.werase = ltc.t_werasc; 88 buf[0] = my_win.cerase; 89 buf[1] = my_win.kill; 90 buf[2] = my_win.werase; 91 cc = write(sockt, buf, sizeof(buf)); 92 if (cc != sizeof(buf) ) 93 p_error("Lost the connection"); 94 cc = read(sockt, buf, sizeof(buf)); 95 if (cc != sizeof(buf) ) 96 p_error("Lost the connection"); 97 his_win.cerase = buf[0]; 98 his_win.kill = buf[1]; 99 his_win.werase = buf[2]; 100 } 101 102 void 103 sig_sent() 104 { 105 106 message("Connection closing. Exiting"); 107 quit(); 108 } 109 110 /* 111 * All done talking...hang up the phone and reset terminal thingy's 112 */ 113 __dead void 114 quit() 115 { 116 117 if (curses_initialized) { 118 wmove(his_win.x_win, his_win.x_nlines-1, 0); 119 wclrtoeol(his_win.x_win); 120 wrefresh(his_win.x_win); 121 endwin(); 122 } 123 if (invitation_waiting) 124 send_delete(); 125 exit(0); 126 } 127