ssl_info_callback
ssl_info_callback(s, SSL_CB_HANDSHAKE_START, 1);
ssl_info_callback(s, SSL_CB_HANDSHAKE_DONE, 1);
ssl_info_callback(s, SSL_CB_CONNECT_LOOP, 1);
ssl_info_callback(s, SSL_CB_CONNECT_EXIT, ret);
void ssl_info_callback(const SSL *s, int type, int value);
ssl_info_callback(s, SSL_CB_WRITE_ALERT,
ssl_info_callback(s, SSL_CB_READ_ALERT,
ssl_info_callback(s, SSL_CB_HANDSHAKE_START, 1);
ssl_info_callback(s, SSL_CB_HANDSHAKE_DONE, 1);
ssl_info_callback(s, SSL_CB_ACCEPT_LOOP, 1);
ssl_info_callback(s, SSL_CB_ACCEPT_EXIT, ret);
ssl_info_callback(s, state, ret);