void serialize_in_addrs(FILE *f, const char *key, struct in_addr *addresses, size_t size);
int deserialize_in_addrs(struct in_addr **addresses, size_t *size, const char *string);
int deserialize_in6_addrs(struct in6_addr **addresses, size_t *size, const char *string);
void serialize_in_addrs(FILE *f, const char *key, struct in_addr *addresses, size_t size);
int deserialize_in_addrs(struct in_addr **addresses, size_t *size, const char *string);
int deserialize_in6_addrs(struct in6_addr **addresses, size_t *size, const char *string);