resolver: Add function to set fallback nameservers

Make an internal function to request fallback nameservers to be added
in case no nameservers were configured for the service.

3 files changed, 6 insertions, 2 deletions

diff --git a/src/connman.h b/src/connman.h
index 447bdd74..c74ab911 100644
--- a/src/connman.h
+++ b/src/connman.h
@@ -248,6 +248,7 @@ int __connman_inet_get_address_netmask(int ifindex,
 
 int __connman_resolver_init(gboolean dnsproxy);
 void __connman_resolver_cleanup(void);
+void __connman_resolver_append_fallback_nameservers(void);
 int __connman_resolvfile_append(int index, const char *domain, const char *server);
 int __connman_resolvfile_remove(int index, const char *domain, const char *server);
 int __connman_resolver_redo_servers(int index);
diff --git a/src/resolver.c b/src/resolver.c
index 121b71cb..fbe4be73 100644
--- a/src/resolver.c
+++ b/src/resolver.c
@@ -218,7 +218,7 @@ int __connman_resolvfile_remove(int index, const char *domain,
 	return resolvfile_export();
 }
 
-static void append_fallback_nameservers(void)
+void __connman_resolver_append_fallback_nameservers(void)
 {
 	GSList *list;
 
@@ -295,7 +295,7 @@ static void remove_entries(GSList *entries)
 
 	g_slist_free(entries);
 
-	append_fallback_nameservers();
+	__connman_resolver_append_fallback_nameservers();
 }
 
 static gboolean resolver_expire_cb(gpointer user_data)
diff --git a/src/service.c b/src/service.c
index 1fff4831..d6aeb973 100644
--- a/src/service.c
+++ b/src/service.c
@@ -1042,6 +1042,9 @@ static int nameserver_add_all(struct connman_service *service,
 		}
 	}
 
+	if (!i)
+		__connman_resolver_append_fallback_nameservers();
+
 	searchdomain_add_all(service);
 
 	return 0;