diff options
Diffstat (limited to 'libbb/get_terminal_width_height.c')
| -rw-r--r-- | libbb/get_terminal_width_height.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/libbb/get_terminal_width_height.c b/libbb/get_terminal_width_height.c new file mode 100644 index 000000000..69f6a17e5 --- /dev/null +++ b/libbb/get_terminal_width_height.c @@ -0,0 +1,66 @@ +/* vi: set sw=4 ts=4: */ +/* + * Determine the width and height of the terminal. + * + * Copyright (C) 1999-2003 by Erik Andersen <andersen@codepoet.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <stdio.h> +#include <errno.h> +#include <fcntl.h> +#include <unistd.h> +#include <unistd.h> +#include <termios.h> +#include <sys/ioctl.h> +#include "busybox.h" + +/* It is perfectly ok to pass in a NULL for either width or for + * height, in which case that value will not be set. It is also + * perfectly ok to have CONFIG_FEATURE_AUTOWIDTH disabled, in + * which case you will always get 80x24 */ +void get_terminal_width_height(int fd, int *width, int *height) +{ + struct winsize win = { 0, 0, 0, 0 }; +#ifdef CONFIG_FEATURE_AUTOWIDTH + if (ioctl(0, TIOCGWINSZ, &win) != 0) { + win.ws_row = 24; + win.ws_col = 80; + } +#endif + if (win.ws_row <= 1) { + win.ws_row = 24; + } + if (win.ws_col <= 1) { + win.ws_col = 80; + } + if (height) { + *height = (int) win.ws_row; + } + if (width) { + *width = (int) win.ws_col; + } +} + +/* END CODE */ +/* +Local Variables: +c-file-style: "linux" +c-basic-offset: 4 +tab-width: 4 +End: +*/ + |