/* 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: */