BIO_CTRL_GET_CLOSE
#define BIO_get_close(b) (int)BIO_ctrl(b,BIO_CTRL_GET_CLOSE,0,NULL)
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE:
case BIO_CTRL_GET_CLOSE: