ssize_t _gnutls_send_int( gnutls_session session, ContentType type, HandshakeType htype, const void* data, size_t sizeofdata);
ssize_t _gnutls_recv_int( gnutls_session session, ContentType type, HandshakeType, char* data, size_t sizeofdata);
ssize_t _gnutls_send_change_cipher_spec( gnutls_session session, int again);
void gnutls_transport_set_lowat(gnutls_session session, int num);