network: dhcp4: ignore null dns address

2021-04-23 08:49:29 +09:00
parent afe23f876e
commit 3e42968342
1 changed files with 3 additions and 0 deletions
@@ -519,6 +519,9 @@ static int link_set_dns_routes(Link *link, const struct in_addr *gw) {
        route->mtu = link->network->dhcp_route_mtu;

        for (int i = 0; i < n; i ++) {
+                if (in4_addr_is_null(&dns[i]))
+                        continue;
+
                route->dst.in = dns[i];

                r = dhcp_route_configure_auto(route, link, gw);