BIO_ctrl_pending
size_t BIO_ctrl_pending(BIO *b);
LCRYPTO_ALIAS(BIO_ctrl_pending);
LCRYPTO_USED(BIO_ctrl_pending);
if (BIO_ctrl_pending(bio) != 2047) {
BIO_ctrl_pending(bio));
if (BIO_ctrl_pending(bio) != 0) {
BIO_ctrl_pending(bio));
if (BIO_ctrl_pending(bio) != 4096) {
BIO_ctrl_pending(bio));
r1 = BIO_ctrl_pending(io2);
r1 = BIO_ctrl_pending(io1);
pathname, (int)BIO_ctrl_pending(bio));