summaryrefslogtreecommitdiffstats
path: root/src/kvilib/net/kvi_dns.h
blob: 3f423c24e702bf5b3fb4602360874f25f259fba3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
#ifndef _KVI_DNS_H_
#define _KVI_DNS_H_

//=============================================================================
//
//   File : kvi_dns.h
//   Creation date : Sat Jul 21 2000 13:59:11 by Szymon Stefanek
//
//   This file is part of the KVirc irc client distribution
//   Copyright (C) 1999-2007 Szymon Stefanek (pragma at kvirc dot net)
//
//   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; either version 2
//   of the License, or (at your opinion) any later version.
//
//   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. ,51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
//=============================================================================

#include "kvi_settings.h"
#include "kvi_heapobject.h"
#include "kvi_thread.h"
#include "kvi_qstring.h"


class KviDnsThread; // not part of the API


class KVILIB_API KviDnsResult : public KviHeapObject
{
	friend class KviDns;
	friend class KviDnsThread;
protected:
	KviDnsResult();
public:
	~KviDnsResult();
protected:
	int             m_iError;
	KviPointerList<QString> * m_pHostnameList;
	KviPointerList<QString> * m_pIpAddressList;
	QString               m_szQuery;
public:
	int error(){ return m_iError; };
	// never store nor delete these pointers!
	// (these are NEVER 0)
	KviPointerList<QString> * hostnameList(){ return m_pHostnameList; };
	KviPointerList<QString> * ipAddressList(){ return m_pIpAddressList; };
	const QString &query(){ return m_szQuery; };
protected:
	void setError(int iError){ m_iError = iError; };
	void setQuery(const QString &query){ m_szQuery = query; };
	void appendHostname(const QString &host);
	void appendAddress(const QString &addr);
};



class KVILIB_API KviDns : public QObject, public KviHeapObject
{
	Q_OBJECT
	Q_PROPERTY(bool blockingDelete READ isRunning)
public:
	KviDns();
	~KviDns();
public:
	enum QueryType { IpV4 , IpV6 , Any };
	enum State     { Idle , Busy , Failure , Success };
protected:
	void         * m_pAuxData;
	KviDnsThread * m_pSlaveThread;
	KviDnsResult * m_pDnsResult;
	State          m_state;
public:
	/////////////////////////////////////////////////////////////////////////////////////////////////////
	//
	// Public interface
	//

	// Lookup start
	bool lookup(const QString &szQuery,QueryType type);

	// Current object state
	State state(){ return m_state; };

	// Results (return always non null-data..but valid results only if state() == Success or Failure)
	int error();
	const QString & firstHostname();
	const QString & firstIpAddress();
	int hostnameCount();
	int ipAddressCount();
	KviPointerList<QString> * hostnameList();
	KviPointerList<QString> * ipAddressList();
	const QString & query();
	bool isRunning() const;

	// Auxiliary data store
	void setAuxData(void * pAuxData){ m_pAuxData = pAuxData; };
	void * releaseAuxData(){ void * pData = m_pAuxData; m_pAuxData = 0; return pData; };
protected:
	virtual bool event(QEvent *e);
private:
	KviDnsResult * result();
signals:
	void lookupDone(KviDns *);
};



///////////////////////////////////////////////////////////////////////////////////////////////////////////
// INTERNAL CLASSES
//

#define KVI_DNS_THREAD_EVENT_DATA (KVI_THREAD_USER_EVENT_BASE + 7432)

class KviDnsThread : public KviThread
{
	friend class KviDns;
protected:
	KviDnsThread(KviDns * pDns);
	~KviDnsThread();
protected:
	QString              m_szQuery;
	KviDns::QueryType    m_queryType;
	KviDns             * m_pParentDns;
public:
	void setQuery(const QString &query,KviDns::QueryType type){ m_szQuery = query; m_queryType = type; };
protected:
	virtual void run();
	int translateDnsError(int iErr);
	void postDnsError(KviDnsResult * dns,int iErr);
};


#endif //_KVI_DNS_H_