add_nonce

static VALUE
ossl_ocspreq_add_nonce(int argc, VALUE *argv, VALUE self)
{
    OCSP_REQUEST *req;
    VALUE val;
    int ret;

    rb_scan_args(argc, argv, "01", &val);
    if(NIL_P(val)) {
        GetOCSPReq(self, req);
        ret = OCSP_request_add1_nonce(req, NULL, -1);
    }
    else{
        StringValue(val);
        GetOCSPReq(self, req);
        ret = OCSP_request_add1_nonce(req, (unsigned char *)RSTRING_PTR(val), RSTRING_LENINT(val));
    }
    if(!ret) ossl_raise(eOCSPError, NULL);

    return self;
}