OpenSSL::X509::Request#subject=

static VALUE
ossl_x509req_set_subject(VALUE self, VALUE subject)
{
    X509_REQ *req;

    GetX509Req(self, req);
    /* DUPs name */
    if (!X509_REQ_set_subject_name(req, GetX509NamePtr(subject))) {
        ossl_raise(eX509ReqError, NULL);
    }

    return subject;
}