// Keep the name synchronized with LibC/netdb.cpp, constant 'lookup_server_endpoint_magic'.
endpoint LookupServer
{
    // Keep these definitions synchronized with gethostbyname and gethostbyaddr in netdb.cpp
    lookup_name(ByteString name) => (int code, Vector<ByteString> addresses)
    lookup_address(ByteString address) => (int code, ByteString name)
}