Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/talk/init_disp.c	Lines:	0	79	0.0 %
Date:	2017-11-13	Branches:	0	20	0.0 %


/*	$OpenBSD: init_disp.c,v 1.22 2016/02/01 07:29:25 mestre Exp $	*/
/*	$NetBSD: init_disp.c,v 1.6 1994/12/09 02:14:17 jtc Exp $	*/

/*
 * 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. 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.
 */

/*
 * Initialization code for the display package,
 * as well as the signal handling routines.
 */

#include <sys/ioctl.h>

#include <err.h>
#include <stdlib.h>
#include <termios.h>
#include <unistd.h>

#include "talk.h"

/*
 * Set up curses, catch the appropriate signals,
 * and build the various windows.
 */
void
init_display(void)
{
	struct sigaction sa;

	if (initscr() == NULL)
		errx(1, "Terminal type unset or lacking necessary features.");
	(void) sigaction(SIGTSTP, NULL, &sa);
	sigaddset(&sa.sa_mask, SIGALRM);
	(void) sigaction(SIGTSTP, &sa, NULL);
	curses_initialized = 1;
	clear();
	refresh();
	noecho();
	cbreak();
	signal(SIGINT, sig_sent);
	signal(SIGPIPE, sig_sent);
	signal(SIGWINCH, sig_winch);
	/* 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, smooth_scroll);
	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, smooth_scroll);
	wclear(his_win.x_win);

	line_win = newwin(1, COLS, my_win.x_nlines, 0);
#if defined(NCURSES_VERSION) || defined(whline)
	whline(line_win, '-', COLS);
#else
	box(line_win, '-', '-');
#endif
	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.
 */
void
set_edit_chars(void)
{
	u_char buf[3];
	int cc;
	struct termios tty;

	tcgetattr(STDIN_FILENO, &tty);
	buf[0] = my_win.cerase = (tty.c_cc[VERASE] == (u_char)_POSIX_VDISABLE)
	    ? CERASE : tty.c_cc[VERASE];
	buf[1] = my_win.kill = (tty.c_cc[VKILL] == (u_char)_POSIX_VDISABLE)
	    ? CKILL : tty.c_cc[VKILL];
	buf[2] = my_win.werase = (tty.c_cc[VWERASE] == (u_char)_POSIX_VDISABLE)
	    ? CWERASE : tty.c_cc[VWERASE];
	cc = write(sockt, buf, sizeof(buf));
	if (cc != sizeof(buf) )
		quit("Lost the connection", 1);
	cc = read(sockt, buf, sizeof(buf));
	if (cc != sizeof(buf) )
		quit("Lost the connection", 1);
	his_win.cerase = buf[0];
	his_win.kill = buf[1];
	his_win.werase = buf[2];
}

void
sig_sent(int dummy)
{

	quit("Connection closing.  Exiting", 0);
}

void
sig_winch(int dummy)
{

	gotwinch = 1;
}

/*
 * All done talking...hang up the phone and reset terminal thingy's
 */
void
quit(char *warning, int do_perror)
{

	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();
	if (warning) {
		if (do_perror)
			warn("%s", warning);
		else
			warnx("%s", warning);
	}
	exit(0);
}

/*
 * If we get SIGWINCH, recompute both window sizes and refresh things.
 */
void
resize_display(void)
{
	struct winsize ws;

	if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) < 0 ||
	    (ws.ws_row == LINES && ws.ws_col == COLS))
		return;

	/* Update curses' internal state with new window size. */
	resizeterm(ws.ws_row, ws.ws_col);

	/*
	 * Resize each window but wait to refresh the screen until
	 * everything has been drawn so the cursor is in the right spot.
	 */
	my_win.x_nlines = LINES / 2;
	my_win.x_ncols = COLS;
	wresize(my_win.x_win, my_win.x_nlines, my_win.x_ncols);
	mvwin(my_win.x_win, 0, 0);
	clearok(my_win.x_win, TRUE);

	his_win.x_nlines = LINES / 2 - 1;
	his_win.x_ncols = COLS;
	wresize(his_win.x_win, his_win.x_nlines, his_win.x_ncols);
	mvwin(his_win.x_win, my_win.x_nlines + 1, 0);
	clearok(his_win.x_win, TRUE);

	wresize(line_win, 1, COLS);
	mvwin(line_win, my_win.x_nlines, 0);
#if defined(NCURSES_VERSION) || defined(whline)
	whline(line_win, '-', COLS);
#else
	wmove(line_win, my_win.x_nlines, 0);
	box(line_win, '-', '-');
#endif

	/* Now redraw the screen. */
	wrefresh(his_win.x_win);
	wrefresh(line_win);
	wrefresh(my_win.x_win);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: init_disp.c,v 1.22 2016/02/01 07:29:25 mestre Exp $ */
2			/* $NetBSD: init_disp.c,v 1.6 1994/12/09 02:14:17 jtc Exp $ */
3
4			/*
5			* Copyright (c) 1983, 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			* 1. Redistributions of source code must retain the above copyright
12			* notice, this list of conditions and the following disclaimer.
13			* 2. Redistributions in binary form must reproduce the above copyright
14			* notice, this list of conditions and the following disclaimer in the
15			* documentation and/or other materials provided with the distribution.
16			* 3. Neither the name of the University nor the names of its contributors
17			* may be used to endorse or promote products derived from this software
18			* without specific prior written permission.
19			*
20			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30			* SUCH DAMAGE.
31			*/
32
33			/*
34			* Initialization code for the display package,
35			* as well as the signal handling routines.
36			*/
37
38			#include <sys/ioctl.h>
39
40			#include <err.h>
41			#include <stdlib.h>
42			#include <termios.h>
43			#include <unistd.h>
44
45			#include "talk.h"
46
47			/*
48			* Set up curses, catch the appropriate signals,
49			* and build the various windows.
50			*/
51			void
52			init_display(void)
53			{
54			struct sigaction sa;
55
56			if (initscr() == NULL)
57			errx(1, "Terminal type unset or lacking necessary features.");
58			(void) sigaction(SIGTSTP, NULL, &sa);
59			sigaddset(&sa.sa_mask, SIGALRM);
60			(void) sigaction(SIGTSTP, &sa, NULL);
61			curses_initialized = 1;
62			clear();
63			refresh();
64			noecho();
65			cbreak();
66			signal(SIGINT, sig_sent);
67			signal(SIGPIPE, sig_sent);
68			signal(SIGWINCH, sig_winch);
69			/* curses takes care of ^Z */
70			my_win.x_nlines = LINES / 2;
71			my_win.x_ncols = COLS;
72			my_win.x_win = newwin(my_win.x_nlines, my_win.x_ncols, 0, 0);
73			scrollok(my_win.x_win, smooth_scroll);
74			wclear(my_win.x_win);
75
76			his_win.x_nlines = LINES / 2 - 1;
77			his_win.x_ncols = COLS;
78			his_win.x_win = newwin(his_win.x_nlines, his_win.x_ncols,
79			my_win.x_nlines+1, 0);
80			scrollok(his_win.x_win, smooth_scroll);
81			wclear(his_win.x_win);
82
83			line_win = newwin(1, COLS, my_win.x_nlines, 0);
84			#if defined(NCURSES_VERSION) \|\| defined(whline)
85			whline(line_win, '-', COLS);
86			#else
87			box(line_win, '-', '-');
88			#endif
89			wrefresh(line_win);
90			/* let them know we are working on it */
91			current_state = "No connection yet";
92			}
93
94			/*
95			* Trade edit characters with the other talk. By agreement
96			* the first three characters each talk transmits after
97			* connection are the three edit characters.
98			*/
99			void
100			set_edit_chars(void)
101			{
102			u_char buf[3];
103			int cc;
104			struct termios tty;
105
106			tcgetattr(STDIN_FILENO, &tty);
107			buf[0] = my_win.cerase = (tty.c_cc[VERASE] == (u_char)_POSIX_VDISABLE)
108			? CERASE : tty.c_cc[VERASE];
109			buf[1] = my_win.kill = (tty.c_cc[VKILL] == (u_char)_POSIX_VDISABLE)
110			? CKILL : tty.c_cc[VKILL];
111			buf[2] = my_win.werase = (tty.c_cc[VWERASE] == (u_char)_POSIX_VDISABLE)
112			? CWERASE : tty.c_cc[VWERASE];
113			cc = write(sockt, buf, sizeof(buf));
114			if (cc != sizeof(buf) )
115			quit("Lost the connection", 1);
116			cc = read(sockt, buf, sizeof(buf));
117			if (cc != sizeof(buf) )
118			quit("Lost the connection", 1);
119			his_win.cerase = buf[0];
120			his_win.kill = buf[1];
121			his_win.werase = buf[2];
122			}
123
124			void
125			sig_sent(int dummy)
126			{
127
128			quit("Connection closing. Exiting", 0);
129			}
130
131			void
132			sig_winch(int dummy)
133			{
134
135			gotwinch = 1;
136			}
137
138			/*
139			* All done talking...hang up the phone and reset terminal thingy's
140			*/
141			void
142			quit(char *warning, int do_perror)
143			{
144
145			if (curses_initialized) {
146			wmove(his_win.x_win, his_win.x_nlines-1, 0);
147			wclrtoeol(his_win.x_win);
148			wrefresh(his_win.x_win);
149			endwin();
150			}
151			if (invitation_waiting)
152			send_delete();
153			if (warning) {
154			if (do_perror)
155			warn("%s", warning);
156			else
157			warnx("%s", warning);
158			}
159			exit(0);
160			}
161
162			/*
163			* If we get SIGWINCH, recompute both window sizes and refresh things.
164			*/
165			void
166			resize_display(void)
167			{
168			struct winsize ws;
169
170			if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) < 0 \|\|
171			(ws.ws_row == LINES && ws.ws_col == COLS))
172			return;
173
174			/* Update curses' internal state with new window size. */
175			resizeterm(ws.ws_row, ws.ws_col);
176
177			/*
178			* Resize each window but wait to refresh the screen until
179			* everything has been drawn so the cursor is in the right spot.
180			*/
181			my_win.x_nlines = LINES / 2;
182			my_win.x_ncols = COLS;
183			wresize(my_win.x_win, my_win.x_nlines, my_win.x_ncols);
184			mvwin(my_win.x_win, 0, 0);
185			clearok(my_win.x_win, TRUE);
186
187			his_win.x_nlines = LINES / 2 - 1;
188			his_win.x_ncols = COLS;
189			wresize(his_win.x_win, his_win.x_nlines, his_win.x_ncols);
190			mvwin(his_win.x_win, my_win.x_nlines + 1, 0);
191			clearok(his_win.x_win, TRUE);
192
193			wresize(line_win, 1, COLS);
194			mvwin(line_win, my_win.x_nlines, 0);
195			#if defined(NCURSES_VERSION) \|\| defined(whline)
196			whline(line_win, '-', COLS);
197			#else
198			wmove(line_win, my_win.x_nlines, 0);
199			box(line_win, '-', '-');
200			#endif
201
202			/* Now redraw the screen. */
203			wrefresh(his_win.x_win);
204			wrefresh(line_win);
205			wrefresh(my_win.x_win);
206			}