fix comparison error

9 years ago · 6f55309025
1 changed files with 1 additions and 1 deletions
--- a/neighbor.cpp
+++ b/neighbor.cpp
@ -181,7 +181,7 @@ QString Neighbor::macOfIP(QString ip, bool *ok) const {
  nl_cache_free(neigh_cache);
  nl_socket_free(sock);
-  if(mac == NULL || count == 0) {
+  if(mac[0] == '\0' || count == 0) {
    if(ok != NULL) {
      *ok = true;
    }