int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
unsigned int len, int create_empty_fragement);
int dtls1_dispatch_alert(SSL *s);
-int dtls1_enc(SSL *s, int snd);
int ssl_init_wbio_buffer(SSL *s, int push);
void ssl_free_wbio_buffer(SSL *s);