ossl_ec_group_todata
if (!ossl_ec_group_todata(ecg, tmpl, NULL, libctx, propq, bnctx, &gen_buf))
if (!ossl_ec_group_todata(
int ossl_ec_group_todata(const EC_GROUP *group, OSSL_PARAM_BLD *tmpl,
ok = ok && ossl_ec_group_todata(EC_KEY_get0_group(ec), tmpl, NULL, ossl_ec_key_get_libctx(ec), ossl_ec_key_get0_propq(ec), bnctx, &genbuf);
&& ossl_ec_group_todata(ecg, NULL, params, libctx, propq, bnctx,