1 files changed, 21 insertions, 2 deletions
diff --git a/src/grp-resolve/systemd-resolved/resolved-dns-server.c b/src/grp-resolve/systemd-resolved/resolved-dns-server.c
index 2274eedae2..b2605c0d46 100644
--- a/src/grp-resolve/systemd-resolved/resolved-dns-server.c
+++ b/src/grp-resolve/systemd-resolved/resolved-dns-server.c
@@ -140,8 +140,7 @@ DnsServer* dns_server_unref(DnsServer *s)  {
                 return NULL;
 
         free(s->server_string);
-        free(s);
-        return NULL;
+        return mfree(s);
 }
 
 void dns_server_unlink(DnsServer *s) {
@@ -577,6 +576,26 @@ void dns_server_warn_downgrade(DnsServer *server) {
         server->warned_downgrade = true;
 }
 
+bool dns_server_limited_domains(DnsServer *server) {
+        DnsSearchDomain *domain;
+        bool domain_restricted = false;
+
+        /* Check if the server has route-only domains without ~., i. e. whether
+         * it should only be used for particular domains */
+        if (!server->link)
+                return false;
+
+        LIST_FOREACH(domains, domain, server->link->search_domains)
+                if (domain->route_only) {
+                        domain_restricted = true;
+                        /* ~. means "any domain", thus it is a global server */
+                        if (dns_name_is_root(DNS_SEARCH_DOMAIN_NAME(domain)))
+                                return false;
+                }
+
+        return domain_restricted;
+}
+
 static void dns_server_hash_func(const void *p, struct siphash *state) {
         const DnsServer *s = p;