1 /* vi: set sw=4 ts=4: */
3 * Determine the width and height of the terminal.
5 * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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.
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.
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
28 #include <sys/ioctl.h>
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
33 * perfectly ok to have CONFIG_FEATURE_AUTOWIDTH disabled, in
34 * which case you will always get 80x24 */
35 void get_terminal_width_height(int fd, int *width, int *height)
37 struct winsize win = { 0, 0, 0, 0 };
38 #ifdef CONFIG_FEATURE_AUTOWIDTH
39 if (ioctl(fd, TIOCGWINSZ, &win) != 0) {
44 if (win.ws_row <= 1) {
47 if (win.ws_col <= 1) {
51 *height = (int) win.ws_row;
54 *width = (int) win.ws_col;