Function in_localip

freebsd/netinet/in.c:122–137

* Return 1 if an internet address is for the local host and configured * on one of its interfaces. */

 * on one of its interfaces.
 */
int
in_localip(struct in_addr in)
{
	struct rm_priotracker in_ifa_tracker;
	struct in_ifaddr *ia;

	IN_IFADDR_RLOCK(&in_ifa_tracker);
	LIST_FOREACH(ia, INADDR_HASH(in.s_addr), ia_hash) {
		if (IA_SIN(ia)->sin_addr.s_addr == in.s_addr) {
			IN_IFADDR_RUNLOCK(&in_ifa_tracker);
			return (1);
		}
	}
	IN_IFADDR_RUNLOCK(&in_ifa_tracker);
	return (0);
}

/*
 * Return 1 if an internet address is configured on an interface.