socket: when the socket is supposed to stop, don't accept any connections anymore

src/socket.c

@@ -1030,6 +1030,13 @@ static void socket_enter_running(Socket *s, int cfd) {
         assert(s);
         dbus_error_init(&error);
 
+        /* We don't take connections anymore if we are supposed to
+         * shut down anyway */
+        if (s->meta.job && s->meta.job->type == JOB_STOP) {
+                close_nointr_nofail(cfd);
+                return;
+        }
+
         if (cfd < 0) {
                 if ((r = manager_add_job(s->meta.manager, JOB_START, UNIT(s->service), JOB_REPLACE, true, &error, NULL)) < 0)
                         goto fail;