ssl_msg_callback_cbs
ssl_msg_callback_cbs(s, 0, SSL3_RT_HANDSHAKE,
void ssl_msg_callback_cbs(SSL *s, int is_write, int content_type, CBS *cbs);
ssl_msg_callback_cbs(s, 0, SSL3_RT_ALERT, &cbs);
ssl_msg_callback_cbs(s, 0, SSL3_RT_CHANGE_CIPHER_SPEC,
ssl_msg_callback_cbs(s, 0, SSL3_RT_HANDSHAKE, &cbs);
ssl_msg_callback_cbs(s, sent, SSL3_RT_ALERT, &cbs);
ssl_msg_callback_cbs(s, 0, SSL3_RT_HANDSHAKE, &cbs);
ssl_msg_callback_cbs(s, 1, SSL3_RT_HANDSHAKE, &cbs);