| 1 | /* |
| 2 | * Copyright (c) 1983 Regents of the University of California. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms are permitted |
| 6 | * provided that the above copyright notice and this paragraph are |
| 7 | * duplicated in all such forms and that any documentation, |
| 8 | * advertising materials, and other materials related to such |
| 9 | * distribution and use acknowledge that the software was developed |
| 10 | * by the University of California, Berkeley. The name of the |
| 11 | * University may not be used to endorse or promote products derived |
| 12 | * from this software without specific prior written permission. |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| 15 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| 16 | */ |
| 17 | |
| 18 | #ifndef lint |
| 19 | static char sccsid[] = "@(#)init_disp.c 5.3 (Berkeley) %G%"; |
| 20 | #endif /* not lint */ |
| 21 | |
| 22 | /* |
| 23 | * Initialization code for the display package, |
| 24 | * as well as the signal handling routines. |
| 25 | */ |
| 26 | |
| 27 | #include "talk.h" |
| 28 | #include <signal.h> |
| 29 | |
| 30 | /* |
| 31 | * Set up curses, catch the appropriate signals, |
| 32 | * and build the various windows. |
| 33 | */ |
| 34 | init_display() |
| 35 | { |
| 36 | void sig_sent(); |
| 37 | struct sigvec sigv; |
| 38 | |
| 39 | initscr(); |
| 40 | (void) sigvec(SIGTSTP, (struct sigvec *)0, &sigv); |
| 41 | sigv.sv_mask |= sigmask(SIGALRM); |
| 42 | (void) sigvec(SIGTSTP, &sigv, (struct sigvec *)0); |
| 43 | curses_initialized = 1; |
| 44 | clear(); |
| 45 | refresh(); |
| 46 | noecho(); |
| 47 | crmode(); |
| 48 | signal(SIGINT, sig_sent); |
| 49 | signal(SIGPIPE, sig_sent); |
| 50 | /* curses takes care of ^Z */ |
| 51 | my_win.x_nlines = LINES / 2; |
| 52 | my_win.x_ncols = COLS; |
| 53 | my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0); |
| 54 | scrollok(my_win.x_win, FALSE); |
| 55 | wclear(my_win.x_win); |
| 56 | |
| 57 | his_win.x_nlines = LINES / 2 - 1; |
| 58 | his_win.x_ncols = COLS; |
| 59 | his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols, |
| 60 | my_win.x_nlines+1, 0); |
| 61 | scrollok(his_win.x_win, FALSE); |
| 62 | wclear(his_win.x_win); |
| 63 | |
| 64 | line_win = newwin(1, COLS, my_win.x_nlines, 0); |
| 65 | box(line_win, '-', '-'); |
| 66 | wrefresh(line_win); |
| 67 | /* let them know we are working on it */ |
| 68 | current_state = "No connection yet"; |
| 69 | } |
| 70 | |
| 71 | /* |
| 72 | * Trade edit characters with the other talk. By agreement |
| 73 | * the first three characters each talk transmits after |
| 74 | * connection are the three edit characters. |
| 75 | */ |
| 76 | set_edit_chars() |
| 77 | { |
| 78 | char buf[3]; |
| 79 | int cc; |
| 80 | struct sgttyb tty; |
| 81 | struct ltchars ltc; |
| 82 | |
| 83 | ioctl(0, TIOCGETP, &tty); |
| 84 | ioctl(0, TIOCGLTC, (struct sgttyb *)<c); |
| 85 | my_win.cerase = tty.sg_erase; |
| 86 | my_win.kill = tty.sg_kill; |
| 87 | if (ltc.t_werasc == (char) -1) |
| 88 | my_win.werase = '\027'; /* control W */ |
| 89 | else |
| 90 | my_win.werase = ltc.t_werasc; |
| 91 | buf[0] = my_win.cerase; |
| 92 | buf[1] = my_win.kill; |
| 93 | buf[2] = my_win.werase; |
| 94 | cc = write(sockt, buf, sizeof(buf)); |
| 95 | if (cc != sizeof(buf) ) |
| 96 | p_error("Lost the connection"); |
| 97 | cc = read(sockt, buf, sizeof(buf)); |
| 98 | if (cc != sizeof(buf) ) |
| 99 | p_error("Lost the connection"); |
| 100 | his_win.cerase = buf[0]; |
| 101 | his_win.kill = buf[1]; |
| 102 | his_win.werase = buf[2]; |
| 103 | } |
| 104 | |
| 105 | void |
| 106 | sig_sent() |
| 107 | { |
| 108 | |
| 109 | message("Connection closing. Exiting"); |
| 110 | quit(); |
| 111 | } |
| 112 | |
| 113 | /* |
| 114 | * All done talking...hang up the phone and reset terminal thingy's |
| 115 | */ |
| 116 | quit() |
| 117 | { |
| 118 | |
| 119 | if (curses_initialized) { |
| 120 | wmove(his_win.x_win, his_win.x_nlines-1, 0); |
| 121 | wclrtoeol(his_win.x_win); |
| 122 | wrefresh(his_win.x_win); |
| 123 | endwin(); |
| 124 | } |
| 125 | if (invitation_waiting) |
| 126 | send_delete(); |
| 127 | exit(0); |
| 128 | } |