X509_get0_serialNumber
LCRYPTO_USED(X509_get0_serialNumber);
serial = X509_get0_serialNumber(subject);
const ASN1_INTEGER *X509_get0_serialNumber(const X509 *x);
LCRYPTO_ALIAS(X509_get0_serialNumber);
if ((serial = X509_get0_serialNumber(x)) == NULL) {
if ((xserial = X509_get0_serialNumber(x)) == NULL) {