ossl_ffc_params_todata
if (!ossl_ffc_params_todata(ossl_dh_get0_params(dh), bld, params))
int ossl_ffc_params_todata(const FFC_PARAMS *ffc, OSSL_PARAM_BLD *tmpl,
ok = ok && ossl_ffc_params_todata(ossl_dsa_get0_params(dsa), tmpl, NULL);
return ossl_ffc_params_todata(ossl_dsa_get0_params(dsa), NULL, params)