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123 lines
3.7 KiB
C++
123 lines
3.7 KiB
C++
/*
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Copyright (c) 2007, Trenton Schulz
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. The name of the author may not be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <QtCore/QSocketNotifier>
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#include <QtNetwork/QHostInfo>
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#include "bonjour/bonjourrecord.h"
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#include "bonjour/bonjourserviceresolver.h"
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BonjourServiceResolver::BonjourServiceResolver(QObject *parent)
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: QObject(parent)
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, dnssref(0)
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, bonjourSocket(0)
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, bonjourPort(-1)
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{
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}
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BonjourServiceResolver::~BonjourServiceResolver()
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{
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cleanupResolve();
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}
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void BonjourServiceResolver::cleanupResolve()
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{
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if (dnssref)
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{
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DNSServiceRefDeallocate(dnssref);
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dnssref = 0;
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delete bonjourSocket;
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bonjourPort = -1;
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}
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}
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bool BonjourServiceResolver::resolveBonjourRecord(const BonjourRecord &record)
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{
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if (dnssref)
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{
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//qWarning("resolve in process, aborting");
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return false;
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}
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DNSServiceErrorType err = DNSServiceResolve(&dnssref, 0, 0,
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record.serviceName.toUtf8().constData(),
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record.registeredType.toUtf8().constData(),
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record.replyDomain.toUtf8().constData(),
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(DNSServiceResolveReply)bonjourResolveReply, this);
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if (err != kDNSServiceErr_NoError)
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{
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emit error(err);
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}
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else
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{
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int sockfd = DNSServiceRefSockFD(dnssref);
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if (sockfd == -1)
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{
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emit error(kDNSServiceErr_Invalid);
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}
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else
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{
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bonjourSocket = new QSocketNotifier(sockfd, QSocketNotifier::Read, this);
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connect(bonjourSocket, SIGNAL(activated(int)), this, SLOT(bonjourSocketReadyRead()));
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}
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}
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return true;
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}
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void BonjourServiceResolver::bonjourSocketReadyRead()
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{
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DNSServiceErrorType err = DNSServiceProcessResult(dnssref);
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if (err != kDNSServiceErr_NoError)
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emit error(err);
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}
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void BonjourServiceResolver::bonjourResolveReply(DNSServiceRef sdRef, DNSServiceFlags ,
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quint32 , DNSServiceErrorType errorCode,
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const char *, const char *hosttarget, quint16 port,
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quint16 , const char *, void *context)
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{
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BonjourServiceResolver *serviceResolver = static_cast<BonjourServiceResolver *>(context);
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if (errorCode != kDNSServiceErr_NoError) {
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emit serviceResolver->error(errorCode);
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return;
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}
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#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
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{
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port = 0 | ((port & 0x00ff) << 8) | ((port & 0xff00) >> 8);
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}
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#endif
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serviceResolver->bonjourPort = port;
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QHostInfo::lookupHost(QString::fromUtf8(hosttarget), serviceResolver, SLOT(finishConnect(const QHostInfo &)));
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}
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void BonjourServiceResolver::finishConnect(const QHostInfo &hostInfo)
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{
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emit bonjourRecordResolved(hostInfo, bonjourPort);
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QMetaObject::invokeMethod(this, "cleanupResolve", Qt::QueuedConnection);
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}
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