-int sd_network_get_dns6(unsigned index, struct in6_addr **addr, size_t *addr_size);
-
-/* Get IPv6 NTP entries statically configured for the link */
-int sd_network_get_ntp6(unsigned index, struct in6_addr **addr, size_t *addr_size);
-
-/* Get all network interfaces' indices, and store them in *indices. Returns
- * the number of indices. If indices is NULL, only returns the number of indices. */
-int sd_network_get_ifindices(unsigned **indices);