ssl_msg_callback
ssl_msg_callback(s, 1, type, s->init_buf->data,
ssl_msg_callback(s, 0,
ssl_msg_callback(s, 0, SSL3_RT_HANDSHAKE, s->init_buf->data,
ssl_msg_callback(s, is_write, content_type, CBS_data(cbs), CBS_len(cbs));
void ssl_msg_callback(SSL *s, int is_write, int content_type,
ssl_msg_callback(s, 1, SSL3_RT_ALERT, s->s3->send_alert, 2);
SSL_set_msg_callback(client, ssl_msg_callback);
SSL_set_msg_callback(server, ssl_msg_callback);