sp_get0(OCSP_BASICRESP *bs, int idx);
int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last);
int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
                            ASN1_GENERALIZEDTIME **revtime,
                            ASN1_GENERALIZEDTIME **thisupd,
                            ASN1_GENERALIZEDTIME **nextupd);

const ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(
                            const OCSP_BASICRESP* single);

const ASN1_OCTET_STRING *OCSP_resp_get0_sig