[master] include ECS in query logging

4566.	[func]		Query logging now includes the ECS option if one
			was included in the query. [RT #44476]

lib/isc/include/isc/netaddr.h

@@ -122,6 +122,12 @@ isc_netaddr_any6(isc_netaddr_t *netaddr);
  * Return the IPv6 wildcard address.
  */
 
+void
+isc_netaddr_unspec(isc_netaddr_t *netaddr);
+/*%<
+ * Initialize as AF_UNSPEC address.
+ */
+
 isc_boolean_t
 isc_netaddr_ismulticast(const isc_netaddr_t *na);
 /*%<

lib/isc/netaddr.c

@@ -363,6 +363,12 @@ isc_netaddr_any6(isc_netaddr_t *netaddr) {
 	netaddr->type.in6 = in6addr_any;
 }
 
+void
+isc_netaddr_unspec(isc_netaddr_t *netaddr) {
+	memset(netaddr, 0, sizeof(*netaddr));
+	netaddr->family = AF_UNSPEC;
+}
+
 isc_boolean_t
 isc_netaddr_ismulticast(const isc_netaddr_t *na) {
 	switch (na->family) {

lib/isc/win32/libisc.def.in

@@ -483,6 +483,7 @@ isc_netaddr_masktoprefixlen
 isc_netaddr_prefixok
 isc_netaddr_setzone
 isc_netaddr_totext
+isc_netaddr_unspec
 isc_netscope_pton
 isc_ntpaths_get
 isc_ntpaths_init