priv_apply_cfg
int priv_apply_cfg(struct iter_priv* priv, struct config_file* cfg);
if(!iter_env->priv || !priv_apply_cfg(iter_env->priv, cfg)) {
if(!priv_apply_cfg(ct->priv, newcfg)) {
int priv_apply_cfg(struct iter_priv* priv, struct config_file* cfg);
if(!iter_env->priv || !priv_apply_cfg(iter_env->priv, cfg)) {