resolve() - resolve an internet address to domain name, or vice versa
int resolve( string address, string callback_func );
resolve() resolves 'address', which should be an internet address in the form "127.0.0.1" or a domain name, into its domain name, or inter‐ net address. When the resolve is complete, 'callback_func' will be called in the current object. The form of the callback is: void callback(string address, string resolved, int key); decimal ip address. The unknown value will be 0 if the lookup failed.
query_host_name(3), socket_address(3), query_ip_name(3), query_ip_num‐ ber(3)