-_public_ int sd_network_get_ifindices(unsigned **indices) {
- _cleanup_closedir_ DIR *d;
- int r = 0;
- unsigned n = 0;
- _cleanup_free_ uid_t *l = NULL;
+static int network_get_in_addr(const char *key, int ifindex, struct in_addr **addr) {
+ _cleanup_free_ char *p = NULL, *s = NULL;
+ int r;
+
+ assert_return(ifindex > 0, -EINVAL);
+ assert_return(addr, -EINVAL);
+
+ if (asprintf(&p, "/run/systemd/netif/links/%d", ifindex) < 0)
+ return -ENOMEM;
+
+ r = parse_env_file(p, NEWLINE, key, &s, NULL);
+ if (r < 0)
+ return r;
+ else if (!s)
+ return -EIO;
+
+ return deserialize_in_addrs(addr, s);
+}
+
+_public_ int sd_network_get_dns(int ifindex, struct in_addr **addr) {
+ return network_get_in_addr("DNS", ifindex, addr);
+}