<?php

# ------------------------------------------------------------------------------
#
# Find the root device of a directory
#
# ------------------------------------------------------------------------------
#
# Copyright (C) 2003 Christian Eheim and Alex Pachikov
#                                                                               
# This file is part of TVEz (tvez.sourceforge.net).
#                                                                               
# TVEz 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.
#                                                                               
# TVEz 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 TVEz; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#                                                                               
# ------------------------------------------------------------------------------
#
# Created on 02/12/2003 by Christian Eheim (hide@address.com)
#
# LAST MODIFIED:
# $Date: 2004/01/18 04:29:32 $
# $Revision: 1.2 $
# $Author: eheim $
#
# ------------------------------------------------------------------------------

function find_rootdev($dir) {
	if (! is_dir($dir)) return null;
	$stat = stat($dir);
	$os = $stat[0];
	while (
		$os == $stat[0] && $dir != "/" && $dir != "\\"
				&& ! preg_match("/:$/",$dir) ) {
		$tmp = $dir;
		if (! is_dir($dir)) return null;
		$dir = dirname($dir);
		$stat = stat($dir);
	}
	return $tmp;
}

?>