From: Marcus Eggenberger <egs@quassel-irc.org>
Date: Tue, 8 Jul 2008 13:06:00 +0000 (+0200)
Subject: core should fallback to v4 if v6 isn't available
X-Git-Tag: 0.3.0~298
X-Git-Url: https://git.quassel-irc.org/?p=quassel.git;a=commitdiff_plain;h=452077390e20d20d20c9b1f97c3772a5690f58ce

core should fallback to v4 if v6 isn't available
---

diff --git a/src/core/core.cpp b/src/core/core.cpp
index 25bdc819..13a7fd90 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -340,12 +340,23 @@ QHash<BufferId, MsgId> Core::bufferLastSeenMsgIds(UserId user) {
 /*** Network Management ***/
 
 bool Core::startListening(uint port) {
-  if(!server.listen(QHostAddress::AnyIPv6, port)) {
+  bool success = false;
+
+  // let's see if ipv6 is available
+  success = server.listen(QHostAddress::AnyIPv6, port);
+
+  if(!success && server.serverError() == QAbstractSocket::UnsupportedSocketOperationError) {
+    // fall back to v4
+    success = server.listen(QHostAddress::Any, port);
+  }
+
+  if(!success) {
     qWarning("%s", qPrintable(QString("Could not open GUI client port %1: %2").arg(port).arg(server.errorString())));
-    return false;
+  } else {
+    qDebug() << "Listening for GUI clients on port" << server.serverPort();
   }
-  qDebug() << "Listening for GUI clients on port" << server.serverPort();
-  return true;
+  
+  return success;
 }
 
 void Core::stopListening() {