protected function readlink($path) {
		if (!($target = @readlink($path))) {
			return false;
		}
		
		if (substr($target, 0, 1) != DIRECTORY_SEPARATOR) {
			$target = dirname($path).DIRECTORY_SEPARATOR.$target;
		}
		
		if ($this->_inpath($target, $this->aroot)) {
			$atarget = realpath($target);
			return $this->_normpath($this->root.DIRECTORY_SEPARATOR.substr($atarget, strlen($this->aroot)+1));
		}

		return false;
	}