libeasy: fix if_getaddrs()

libeasy/if_utils.h

@@ -51,6 +51,7 @@ int if_isbridge(const char *ifname);
 struct ip_address {
 	int family;	/* AF_INET or AF_INET6 */
 	union {
+		uint8_t raw[16];
 		struct in_addr ip4;
 		struct in6_addr ip6;
 	} addr;