Function ng_replace_retaddr

freebsd/netgraph/ng_base.c:3845–3857

* Set the address, if none given, give the node here. */

 * Set the address, if none given, give the node here.
 */
void
ng_replace_retaddr(node_p here, item_p item, ng_ID_t retaddr)
{
	if (retaddr) {
		NGI_RETADDR(item) = retaddr;
	} else {
		/*
		 * The old return address should be ok.
		 * If there isn't one, use the address here.
		 */
		NGI_RETADDR(item) = ng_node2ID(here);
	}
}