OpenSSL::X509::Certificate#not_before=

static VALUE
ossl_x509_set_not_before(VALUE self, VALUE time)
{
    X509 *x509;
    ASN1_TIME *asn1time;

    GetX509(self, x509);
    asn1time = ossl_x509_time_adjust(NULL, time);
    if (!X509_set1_notBefore(x509, asn1time)) {
        ASN1_TIME_free(asn1time);
        ossl_raise(eX509CertError, "X509_set_notBefore");
    }
    ASN1_TIME_free(asn1time);

    return time;
}