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# ntqdns.h

This is the verbatim text of the ntqdns.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/ntqdns.h   3.3.8   edited Jan 11 14:46 $
    **
    ** Definition of TQDns class.
    **
    ** Created : 991122
    **
    ** Copyright (C) 1999-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the network module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQDNS_H
    #define TQDNS_H

    #ifndef QT_H
    #include "ntqobject.h"
    #include "ntqhostaddress.h"
    #include "ntqsocketnotifier.h"
    #include "ntqstringlist.h"
    #endif // QT_H

    #if !defined( TQT_MODULE_NETWORK ) || defined( QT_LICENSE_PROFESSIONAL ) || defined( QT_INTERNAL_NETWORK )
    #define TQM_EXPORT_DNS
    #else
    #define TQM_EXPORT_DNS TQ_EXPORT
    #endif

    #ifndef TQT_NO_DNS

    //#define Q_DNS_SYNCHRONOUS

    class TQDnsPrivate;

    class TQM_EXPORT_DNS TQDns: public TQObject {
        TQ_OBJECT
    public:
        enum RecordType {
    	None,
    	A, Aaaa,
    	Mx, Srv,
    	Cname,
    	Ptr,
    	Txt
        };

        TQDns();
        TQDns( const TQString & label, RecordType rr = A );
        TQDns( const TQHostAddress & address, RecordType rr = Ptr );
        virtual ~TQDns();

        // to set/change the query
        virtual void setLabel( const TQString & label );
        virtual void setLabel( const TQHostAddress & address );
        TQString label() const { return l; }

        virtual void setRecordType( RecordType rr = A );
        RecordType recordType() const { return t; }

        // whether something is happening behind the scenes
        bool isWorking() const;

        // to query for replies
        TQValueList<TQHostAddress> addresses() const;

        class TQM_EXPORT_DNS MailServer {
        public:
    	MailServer( const TQString & n=TQString::null, TQ_UINT16 p=0 )
    	    :name(n), priority(p) {}
    	TQString name;
    	TQ_UINT16 priority;
    	TQ_DUMMY_COMPARISON_OPERATOR(MailServer)
        };
        TQValueList<MailServer> mailServers() const;

        class TQM_EXPORT_DNS Server {
        public:
    	Server(const TQString & n=TQString::null, TQ_UINT16 p=0, TQ_UINT16 w=0, TQ_UINT16 po=0 )
    	    : name(n), priority(p), weight(w), port(po) {}
    	TQString name;
    	TQ_UINT16 priority;
    	TQ_UINT16 weight;
    	TQ_UINT16 port;
    	TQ_DUMMY_COMPARISON_OPERATOR(Server)
        };
        TQValueList<Server> servers() const;

        TQStringList hostNames() const;

        TQStringList texts() const;

        TQString canonicalName() const; // ### real-world but uncommon: TQStringList

        TQStringList qualifiedNames() const { return n; }

    #if defined(Q_DNS_SYNCHRONOUS)
    protected:
        void connectNotify( const char *signal );
    #endif

    signals:
        void resultsReady();

    private slots:
        void startQuery();

    private:
        static void doResInit();
        void setStartQueryTimer();
        static TQString toInAddrArpaDomain( const TQHostAddress &address );
    #if defined(Q_DNS_SYNCHRONOUS)
        void doSynchronousLookup();
    #endif

        TQString l;
        TQStringList n;
        RecordType t;
        TQDnsPrivate * d;

        friend class TQDnsAnswer;
        friend class TQDnsManager;
    };

    // TQDnsSocket are sockets that are used for DNS lookup

    class TQDnsSocket: public TQObject {
        TQ_OBJECT
        // note: Private not public.  This class contains NO public API.
    protected:
        TQDnsSocket( TQObject *, const char * );
        virtual ~TQDnsSocket();

    private slots:
        virtual void cleanCache();
        virtual void retransmit();
        virtual void answer();
    };

    #endif // TQT_NO_DNS

    #endif // TQDNS_H