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32<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qdns.h</h1>
33
34<p>This is the verbatim text of the qdns.h include file. It is provided only for illustration; the copyright remains with Trolltech.
35<hr>
36<pre>
37/****************************************************************************
38** $Id: qdns-h.html 2051 2007-02-21 10:04:20Z chehrlic $
39**
40** Definition of QDns class.
41**
42** Created : 991122
43**
44** Copyright (C) 1999-2007 Trolltech ASA. All rights reserved.
45**
46** This file is part of the network module of the Qt GUI Toolkit.
47**
48** This file may be distributed under the terms of the Q Public License
49** as defined by Trolltech ASA of Norway and appearing in the file
50** LICENSE.QPL included in the packaging of this file.
51**
52** This file may be distributed and/or modified under the terms of the
53** GNU General Public License version 2 as published by the Free Software
54** Foundation and appearing in the file LICENSE.GPL included in the
55** packaging of this file.
56**
57** Licensees holding valid Qt Enterprise Edition licenses may use this
58** file in accordance with the Qt Commercial License Agreement provided
59** with the Software.
60**
61** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
62** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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64** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
65** information about Qt Commercial License Agreements.
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67** See http://www.trolltech.com/gpl/ for GPL licensing information.
68**
69** Contact info@trolltech.com if any conditions of this licensing are
70** not clear to you.
71**
72**********************************************************************/
73
74#ifndef QDNS_H
75#define QDNS_H
76
77#ifndef QT_H
78#include "qobject.h"
79#include "qhostaddress.h"
80#include "qsocketnotifier.h"
81#include "qstringlist.h"
82#endif // QT_H
83
84#if !defined( QT_MODULE_NETWORK ) || defined( QT_LICENSE_PROFESSIONAL ) || defined( QT_INTERNAL_NETWORK )
85#define QM_EXPORT_DNS
86#else
87#define QM_EXPORT_DNS Q_EXPORT
88#endif
89
90#ifndef QT_NO_DNS
91
92//#define Q_DNS_SYNCHRONOUS
93
94class QDnsPrivate;
95
96class QM_EXPORT_DNS QDns: public QObject {
97 Q_OBJECT
98public:
99 enum RecordType {
100 None,
101 A, Aaaa,
102 Mx, Srv,
103 Cname,
104 Ptr,
105 Txt
106 };
107
108 QDns();
109 QDns( const QString &amp; label, RecordType rr = A );
110 QDns( const QHostAddress &amp; address, RecordType rr = Ptr );
111 virtual ~QDns();
112
113 // to set/change the query
114 virtual void setLabel( const QString &amp; label );
115 virtual void setLabel( const QHostAddress &amp; address );
116 QString label() const { return l; }
117
118 virtual void setRecordType( RecordType rr = A );
119 RecordType recordType() const { return t; }
120
121 // whether something is happening behind the scenes
122 bool isWorking() const;
123
124 // to query for replies
125 QValueList&lt;QHostAddress&gt; addresses() const;
126
127 class QM_EXPORT_DNS MailServer {
128 public:
129 MailServer( const QString &amp; n=QString::null, Q_UINT16 p=0 )
130 :name(n), priority(p) {}
131 QString name;
132 Q_UINT16 priority;
133 Q_DUMMY_COMPARISON_OPERATOR(MailServer)
134 };
135 QValueList&lt;MailServer&gt; mailServers() const;
136
137 class QM_EXPORT_DNS Server {
138 public:
139 Server(const QString &amp; n=QString::null, Q_UINT16 p=0, Q_UINT16 w=0, Q_UINT16 po=0 )
140 : name(n), priority(p), weight(w), port(po) {}
141 QString name;
142 Q_UINT16 priority;
143 Q_UINT16 weight;
144 Q_UINT16 port;
145 Q_DUMMY_COMPARISON_OPERATOR(Server)
146 };
147 QValueList&lt;Server&gt; servers() const;
148
149 QStringList hostNames() const;
150
151 QStringList texts() const;
152
153 QString canonicalName() const; // ### real-world but uncommon: QStringList
154
155 QStringList qualifiedNames() const { return n; }
156
157#if defined(Q_DNS_SYNCHRONOUS)
158protected:
159 void connectNotify( const char *signal );
160#endif
161
162signals:
163 void resultsReady();
164
165private slots:
166 void startQuery();
167
168private:
169 static void doResInit();
170 void setStartQueryTimer();
171 static QString toInAddrArpaDomain( const QHostAddress &amp;address );
172#if defined(Q_DNS_SYNCHRONOUS)
173 void doSynchronousLookup();
174#endif
175
176 QString l;
177 QStringList n;
178 RecordType t;
179 QDnsPrivate * d;
180
181 friend class QDnsAnswer;
182 friend class QDnsManager;
183};
184
185
186// QDnsSocket are sockets that are used for DNS lookup
187
188class QDnsSocket: public QObject {
189 Q_OBJECT
190 // note: Private not public. This class contains NO public API.
191protected:
192 QDnsSocket( QObject *, const char * );
193 virtual ~QDnsSocket();
194
195private slots:
196 virtual void cleanCache();
197 virtual void retransmit();
198 virtual void answer();
199};
200
201#endif // QT_NO_DNS
202
203#endif // QDNS_H
204</pre>
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