diff -r ddf020d0941a -r fdfc01419815 QTfrontend/net/netudpwidget.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/QTfrontend/net/netudpwidget.cpp	Wed Sep 28 19:27:56 2011 +0200
@@ -0,0 +1,72 @@
+/*
+ * Hedgewars, a free turn based strategy game
+ * Copyright (c) 2007 Igor Ulyanov <iulyanov@gmail.com>
+ * Copyright (c) 2007-2011 Andrey Korotaev <unC0Rr@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include <QUdpSocket>
+
+#include "netudpwidget.h"
+
+HWNetUdpModel::HWNetUdpModel(QObject* parent) :
+  HWNetServersModel(parent)
+{
+    pUdpSocket = new QUdpSocket(this);
+
+    pUdpSocket->bind();
+    connect(pUdpSocket, SIGNAL(readyRead()), this, SLOT(onClientRead()));
+}
+
+void HWNetUdpModel::updateList()
+{
+    games.clear();
+
+    reset();
+
+    pUdpSocket->writeDatagram("hedgewars client", QHostAddress::Broadcast, 46631);
+}
+
+void HWNetUdpModel::onClientRead()
+{
+    while (pUdpSocket->hasPendingDatagrams()) {
+        QByteArray datagram;
+        datagram.resize(pUdpSocket->pendingDatagramSize());
+        QHostAddress clientAddr;
+        quint16 clientPort;
+
+        pUdpSocket->readDatagram(datagram.data(), datagram.size(), &clientAddr, &clientPort);
+
+        QString packet = QString::fromUtf8(datagram.data());
+        if(packet.startsWith("hedgewars server")) {
+            QStringList sl;
+            sl << packet.remove(0, 17) << clientAddr.toString() << "46631";
+            games.append(sl);
+        }
+    }
+
+    reset();
+}
+
+QVariant HWNetUdpModel::data(const QModelIndex &index,
+                             int role) const
+{
+    if (!index.isValid() || index.row() < 0
+        || index.row() >= games.size()
+        || role != Qt::DisplayRole)
+    return QVariant();
+
+    return games[index.row()][index.column()];
+}