rfb_init
error = rfb_init(sc->rfb_host, sc->rfb_port, sc->rfb_wait, sc->rfb_password);
error = rfb_init((char *)sc->rfb_unix, -1, sc->rfb_wait,
error = rfb_init(sc->rfb_host, sc->rfb_port, sc->rfb_wait,
int rfb_init(char *hostname, int port, int wait, const char *password,