x->skid =X509_get_ext_d2i(x, NID_subject_key_identifier, NULL, NULL);
x->akid =X509_get_ext_d2i(x, NID_authority_key_identifier, NULL, NULL);
x->crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);
x->skid =X509_get_ext_d2i(x, NID_subject_key_identifier, NULL, NULL);
x->akid =X509_get_ext_d2i(x, NID_authority_key_identifier, NULL, NULL);
x->crldp = X509_get_ext_d2i(x, NID_crl_distribution_points, NULL, NULL);