-int in_addr_null(unsigned family, union in_addr_union *u);
-int in_addr_equal(unsigned family, union in_addr_union *a, union in_addr_union *b);
-int in_addr_prefix_intersect(unsigned family, const union in_addr_union *a, unsigned aprefixlen, const union in_addr_union *b, unsigned bprefixlen);
-int in_addr_prefix_next(unsigned family, union in_addr_union *u, unsigned prefixlen);
-int in_addr_to_string(unsigned family, const union in_addr_union *u, char **ret);
-int in_addr_from_string(unsigned family, const char *s, union in_addr_union *ret);
+bool sockaddr_equal(const union sockaddr_union *a, const union sockaddr_union *b);
+
+#define ETHER_ADDR_TO_STRING_MAX (3*6)
+
+char* ether_addr_to_string(const struct ether_addr *addr, char buffer[ETHER_ADDR_TO_STRING_MAX]);