find_response

static VALUE
ossl_ocspbres_find_response(VALUE self, VALUE target)
{
    OCSP_BASICRESP *bs;
    OCSP_SINGLERESP *sres, *sres_new;
    OCSP_CERTID *id;
    int n;

    GetOCSPCertId(target, id);
    GetOCSPBasicRes(self, bs);

    if ((n = OCSP_resp_find(bs, id, -1)) == -1)
        return Qnil;

    sres = OCSP_resp_get0(bs, n);
    sres_new = ASN1_item_dup(ASN1_ITEM_rptr(OCSP_SINGLERESP), sres);
    if (!sres_new)
        ossl_raise(eOCSPError, "ASN1_item_dup");

    return ossl_ocspsres_new(sres_new);
}