function auth_ip($required = true) {
	global $mysqli;
	$res = $mysqli->query("SELECT ckey,lastadminrank FROM `".fmttable("player")."` where lastadminrank != 'player' and lastseen > DATE_SUB(CURDATE(),INTERVAL 1 DAY) and ip = '".esc($_SERVER['REMOTE_ADDR'])."'");

	if (!$res) {
		die ("Failed to authenticate (" . $mysqli->errno . ") " . $mysqli->error);
	}

	if ($row = $res->fetch_row()) {
		$user = array($row[0],$row[1]);
		return $user;
	}

	if ($required) {
		include("login.php");
		die();
	}
	return array("", "");