X509_set_subject_name
if (!X509_set_subject_name(ret, subject))
if (!X509_set_subject_name(ret, dn_subject))
if (!X509_set_subject_name(x509ss, X509_REQ_get_subject_name(req)))
if (!X509_set_subject_name(x, X509_REQ_get_subject_name(req)))
if (X509_set_subject_name(ret, xn) == 0)
int X509_set_subject_name(X509 *x, X509_NAME *name);