extern bool send_record(sptps_t *s, uint8_t type, const char *data, uint16_t len);
extern bool receive_data(sptps_t *s, const char *data, size_t len);
extern bool force_kex(sptps_t *s);
extern bool send_record(sptps_t *s, uint8_t type, const char *data, uint16_t len);
extern bool receive_data(sptps_t *s, const char *data, size_t len);
extern bool force_kex(sptps_t *s);