<?php

/**
 * Implements hook_node_grants_alter().
 */
function domain_xmlsitemap_node_grants_alter(&$grants, $account, $op) {
  if (!empty($account->xmlsitemap_node_access)) {
    unset($grants['domain_site']);
    unset($grants['domain_id']);
    $grants['domain_all'] = array(0);
  }
}