Function in6_getscope

freebsd/netinet6/scope6.c:458–466

* Return the scope identifier or zero. */

 * Return the scope identifier or zero.
 */
uint16_t
in6_getscope(const struct in6_addr *in6)
{

	if (IN6_IS_SCOPE_LINKLOCAL(in6) || IN6_IS_ADDR_MC_INTFACELOCAL(in6))
		return (in6->s6_addr16[1]);

	return (0);
}

/*
 * Returns scope zone id for the unicast address @in6.