+ const struct addrinfo *b) attribute((nonnull (1, 2)));
+int sockaddrcmp(const struct sockaddr *a,
+ const struct sockaddr *b) attribute((nonnull (1, 2)));
+
+int multicast(const struct sockaddr *sa) attribute((nonnull (1)));
+char *format_sockaddr(const struct sockaddr *sa) attribute((nonnull (1)));
+
+int netaddress_parse(struct netaddress *na,
+ int nvec,
+ char **vec) attribute((nonnull (1)));
+void netaddress_format(const struct netaddress *na,
+ int *nvecp,
+ char ***vecp) attribute((nonnull (1)));
+struct addrinfo *netaddress_resolve(const struct netaddress *na,
+ int passive,
+ int protocol) attribute((nonnull (1)));