int silc_net_create_connection_async(const char *local_ip, int port, 
                                         const char *host);

    Creates a connection (TCP/IP) to a remote host. Returns the connection
    socket or -1 on error. This creates non-blocking socket hence the
    connection returns directly. To get the result of the connect() one
    must select() the socket and read the result after it's ready. If the
    `local_ip' is not NULL then this will bind the `local_ip' address to
    a port before creating the connection.  If it is NULL then this will
    directly create the connection.