blob: ef90463fb69ef25ada9cef702c1c75814e6c1caf [file] [log] [blame]
Eric Andersen8efe9672003-09-15 08:33:45 +00001/* vi: set sw=4 ts=4: */
2/*
3 * Determine the width and height of the terminal.
4 *
Eric Andersenc7bda1c2004-03-15 08:29:22 +00005 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
Eric Andersen8efe9672003-09-15 08:33:45 +00006 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <stdio.h>
23#include <errno.h>
24#include <fcntl.h>
25#include <unistd.h>
26#include <unistd.h>
27#include <termios.h>
28#include <sys/ioctl.h>
29#include "busybox.h"
30
31/* It is perfectly ok to pass in a NULL for either width or for
32 * height, in which case that value will not be set. It is also
Eric Andersenc7bda1c2004-03-15 08:29:22 +000033 * perfectly ok to have CONFIG_FEATURE_AUTOWIDTH disabled, in
Eric Andersen8efe9672003-09-15 08:33:45 +000034 * which case you will always get 80x24 */
35void get_terminal_width_height(int fd, int *width, int *height)
36{
37 struct winsize win = { 0, 0, 0, 0 };
38#ifdef CONFIG_FEATURE_AUTOWIDTH
39 if (ioctl(0, TIOCGWINSZ, &win) != 0) {
40 win.ws_row = 24;
41 win.ws_col = 80;
42 }
43#endif
44 if (win.ws_row <= 1) {
45 win.ws_row = 24;
46 }
47 if (win.ws_col <= 1) {
48 win.ws_col = 80;
49 }
50 if (height) {
51 *height = (int) win.ws_row;
52 }
53 if (width) {
54 *width = (int) win.ws_col;
55 }
56}
57
58/* END CODE */
59/*
60Local Variables:
61c-file-style: "linux"
62c-basic-offset: 4
63tab-width: 4
64End:
65*/
66