- Catch exception thrown by resolver.resolve() and display the error message on stderr

src/reverseresolution.h

@@ -70,10 +70,14 @@ signals:
 
 protected:
   void run() {
+    try {
       boost::asio::ip::tcp::resolver::iterator it = resolver.resolve(ip);
       if(stopped) return;
       boost::asio::ip::tcp::endpoint endpoint = *it;
       emit ip_resolved(misc::toQString(endpoint.address().to_string()), misc::toQString((*it).host_name()));
+    } catch(std::exception &e) {
+      std::cerr << "Hostname resolution failed, reason: " << e.what() << std::endl;
+    }
   }
 };