NID_ct_precert_poison
if (X509_add1_ext_i2d(new_x509, NID_ct_precert_poison,
int poison_idx = ct_x509_get_ext(cert, NID_ct_precert_poison, &poison_ext_is_dup);
{ NID_ct_precert_poison, 0, ASN1_ITEM_ref(ASN1_NULL),
{"ct_precert_poison", "CT Precertificate Poison", NID_ct_precert_poison, 10, &so[6211]},