void silc_protocol_alloc(SilcProtocolType type, 
                             SilcProtocol *new_protocol,
                             void *context, 
                             SilcProtocolFinalCallback callback);

    Allocates a new protocol. The new allocated and initialized 
    protocol is returned to the `new_protocol' argument. The argument
    context `context' is the context to be sent as argument for the
    protocol callback function. The `callback' argument is the function
    to be called after the protocol has finished.