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32 lines
837 B
C
32 lines
837 B
C
/* vi: set sw=4 ts=4: */
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/*
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* Determine the width and height of the terminal.
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*
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* Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
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*
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* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <unistd.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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#include "libbb.h"
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/* It is perfectly ok to pass in a NULL for either width or for
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* height, in which case that value will not be set. */
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int get_terminal_width_height(int fd, int *width, int *height)
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{
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struct winsize win = { 0, 0, 0, 0 };
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int ret = ioctl(fd, TIOCGWINSZ, &win);
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if (win.ws_row <= 1) win.ws_row = 24;
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if (win.ws_col <= 1) win.ws_col = 80;
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if (height) *height = (int) win.ws_row;
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if (width) *width = (int) win.ws_col;
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return ret;
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}
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