OpenSSL::OCSP::SingleResponse.new

static VALUE
ossl_ocspsres_initialize(VALUE self, VALUE arg)
{
    OCSP_SINGLERESP *res, *res_new;
    const unsigned char *p;

    arg = ossl_to_der_if_possible(arg);
    StringValue(arg);
    GetOCSPSingleRes(self, res);

    p = (unsigned char*)RSTRING_PTR(arg);
    res_new = d2i_OCSP_SINGLERESP(NULL, &p, RSTRING_LEN(arg));
    if (!res_new)
        ossl_raise(eOCSPError, "d2i_OCSP_SINGLERESP");
    SetOCSPSingleRes(self, res_new);
    OCSP_SINGLERESP_free(res);

    return self;
}