isc_netaddr_t now has a "family" field

lib/isc/include/isc/netaddr.h

@@ -24,6 +24,7 @@
 ISC_LANG_BEGINDECLS
 
 typedef struct isc_netaddr {
+	unsigned int family;
 	union {
     		struct in_addr in;
 		struct in6_addr in6;

lib/isc/unix/interfaceiter.c

@@ -51,7 +51,8 @@
  */
 
 static void 
-get_addr(int family, isc_netaddr_t *dst, struct sockaddr *src) {
+get_addr(unsigned int family, isc_netaddr_t *dst, struct sockaddr *src) {
+	dst->family = family;
 	switch (family) {
 	case AF_INET:
 		memcpy(&dst->type.in,