--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natfw/natfwstunturnclient/inc/stunutils.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,129 @@
+/*
+* Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:    Collection of utility functions
+*
+*/
+
+
+
+
+#ifndef STUNUTILS_H
+#define STUNUTILS_H
+
+// INCLUDES
+#include <e32base.h>
+#include <in_sock.h>
+#include "natfwunsafattribute.h"
+
+// FORWARD DECLARATIONS
+class CNATFWUNSAFMessage;
+class CNATFWUNSAFUnknownAttributesAttribute;
+
+// CLASS DECLARATION
+
+/**
+ *  Collection of general purpose utility functions, used by several parts of
+ *  the STUN client.
+ *
+ *  @lib ?library
+ *  @since S60 ?S60_version *** for example, S60 v3.0
+ */
+class STUNUtils
+    {
+    public: // Enumerations
+
+    enum TWaitPeriod
+        {
+        //Unit is milliseconds
+        ERetryImmediately = 0,
+        
+        EWaitBeforeRetryDuration = 8000
+        };
+
+    public:
+
+        /**
+        * Returns the address inside MAPPED-ADDRESS attribute, located in the
+        * aResponse.
+        * @pre aResponse.Validate() == ETrue
+        * @param aResponse UNSAF Binding Response
+        * @param aAddr OUT: if aResponse contained MAPPED-ADDRESS, the address
+        *    in the attribute is copied here
+        * @return ETrue if aResponse contained MAPPED-ADDRESS,
+        *          EFalse otherwise
+        */
+        static TBool GetMappedAddress( const CNATFWUNSAFMessage& aResponse,
+                                       TInetAddr& aAddr );
+
+        /**
+        * Gets the address inside XOR-MAPPED-ADDRESS attribute, located in the
+        * aResponse.
+        * @pre aResponse.Validate() == ETrue
+        * @param aResponse UNSAF Binding Response        
+        * @param aAddr OUT: if aResponse contained XOR-MAPPED-ADDRESS, the
+        *    address in the attribute is copied here
+        * @return ETrue if aResponse contained XOR-MAPPED-ADDRESS,
+        *          EFalse otherwise
+        */
+        static TBool GetXorMappedAddressL( const CNATFWUNSAFMessage& aResponse,
+                                           TInetAddr& aAddr );
+
+        /**
+         * Gets the address inside RELAY-ADDRESS attribute, located in the
+         * aResponse.
+         *
+         * @since   s60 3.2
+         * @pre aResponse.Validate() == ETrue
+         * @param aResponse UNSAF Binding Response        
+         * @param aAddr OUT: if aResponse contained RELAY-ADDRESS, the
+         *    address in the attribute is copied here
+         * @return ETrue if aResponse contained RELAY-ADDRESS,
+         *          EFalse otherwise
+         */
+        static TBool GetRelayAddressL( const CNATFWUNSAFMessage& aResponse,
+                                       TInetAddr& aAddr );
+        
+        /**
+         * Gets the address inside TIMERVAL attribute, located in the
+         * aResponse.
+         *
+         * @since   s60 3.2
+         * @pre     aResponse.Validate() == ETrue
+         * @param   aResponse UNSAF Binding Response        
+         * @param   aTimerVal OUT: if aResponse contained TIMERVAL, the
+         *          address in the attribute is copied here
+         * @return  ETrue if aResponse contained TIMERVAL,
+         *          EFalse otherwise
+         */
+        static TBool GetTimerValueL( const CNATFWUNSAFMessage& aResponse,
+                                     TUint32& aTimerVal );
+                                     
+        /**
+        * Checks if the response code is a 5xx.
+        * @param aResponseCode Response code
+        * @return ETrue aResponseCode is 5xx, EFalse otherwise
+        */
+        static TBool Is5xxResponse( TInt aResponseCode );
+
+        /**
+        * Deletes the attributes listed in aUnknownAttr, from aMessage.
+        * @param aMessage UNSAF message
+        * @param aUnknownAttr UNKNOWN-ATTRIBUTES attribute, tells what
+        *    attributes are removed from aMessage.
+        */
+        static void RemoveUnknownAttributes( CNATFWUNSAFMessage& aMessage,
+            const CNATFWUNSAFUnknownAttributesAttribute& aUnknownAttr );
+    };
+
+#endif // STUNUTILS_H