di_path_next_phci
while ((pi = di_path_next_phci(di_node, pi)) != DI_PATH_NIL) {
while ((pi = di_path_next_phci(di_node, pi)) != DI_PATH_NIL) {
for (path = di_path_next_phci(node, DI_PATH_NIL);
path = di_path_next_phci(node, path)) {
extern di_path_t di_path_next_phci(di_node_t node, di_path_t path);