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/**
* This file is a part of Esperanza, an XMMS2 Client.
*
* Copyright (C) 2005-2007 XMMS2 Team
*
* 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 option) 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.
*/
#include "mdns.h"
#ifdef HAVE_DNSSD
#include <dns_sd.h>
static void DNSSD_API
qr_reply (DNSServiceRef sdRef,
DNSServiceFlags flags,
uint32_t ifIndex,
DNSServiceErrorType errorCode,
const char *fullname,
uint16_t rrtype,
uint16_t rrclass,
uint16_t rdlen,
const void *rdata,
uint32_t ttl,
void *context)
{
MDNSQuery *mq = static_cast<MDNSQuery*> (context);
const unsigned char *rd = (unsigned char *) rdata;
QString s = QString::fromAscii (fullname);
s = s.left (s.indexOf ("."));
MDNSServer *serv = mq->server (s);
if (!serv) {
qWarning ("This shouldn't happen!");
return;
}
QString ip;
ip.sprintf ("%d.%d.%d.%d", rd[0], rd[1], rd[2], rd[3]);
serv->set_ip (ip);
mq->serv_complete (serv);
mq->destroy_sock (sdRef);
}
static void DNSSD_API
resolve_reply (DNSServiceRef client,
DNSServiceFlags flags,
uint32_t ifIndex,
DNSServiceErrorType errorCode,
const char *fullname,
const char *hosttarget,
uint16_t opaqueport,
uint16_t txtLen,
const char *txtRecord,
void *context)
{
DNSServiceErrorType err;
MDNSQuery *mq = static_cast<MDNSQuery*> (context);
union { quint16 s; unsigned char b[2]; } portu = { opaqueport };
QString s = QString::fromAscii (fullname);
s = s.left (s.indexOf ("."));
MDNSServer *serv = mq->server (s);
if (!serv) {
qWarning ("This shouldn't happen!");
return;
}
serv->set_port (((quint16) portu.b[0]) << 8 | portu.b[1]);
serv->set_hostname (QString::fromAscii (hosttarget));
DNSServiceRef c2;
err = DNSServiceQueryRecord (&c2, 0,
kDNSServiceInterfaceIndexAny,
hosttarget,
kDNSServiceType_A,
kDNSServiceClass_IN,
qr_reply, mq);
if (err != kDNSServiceErr_NoError) {
qWarning ("error from query record!");
}
mq->add_fd (c2);
mq->destroy_sock (client);
}
static void DNSSD_API
browse_reply (DNSServiceRef client,
DNSServiceFlags flags,
uint32_t ifIndex,
DNSServiceErrorType errorCode,
const char *replyName,
const char *replyType,
const char *replyDomain,
void *context)
{
DNSServiceErrorType err;
MDNSQuery *mq = static_cast<MDNSQuery*> (context);
bool remove = (flags & kDNSServiceFlagsAdd) ? false : true;
if (!remove) {
DNSServiceRef c2;
MDNSServer *server = new MDNSServer (QString::fromAscii (replyName),
QString::fromAscii (replyDomain));
err = DNSServiceResolve (&c2, 0, kDNSServiceInterfaceIndexAny,
replyName, mq->service ().toAscii (), "local",
(DNSServiceResolveReply)resolve_reply, mq);
if (err != kDNSServiceErr_NoError) {
delete server;
qWarning ("failed to run service resolve!");
return;
}
mq->add_server (server);
mq->add_fd (c2);
} else {
mq->remove_server (QString::fromAscii (replyName));
}
}
void
MDNSQuery::serv_complete (MDNSServer *serv)
{
if (serv->complete ())
return;
serv->set_complete (true);
emit serverlistChanged ();
}
void
MDNSQuery::destroy_sock (DNSServiceRef client)
{
QSocketNotifier *sn = m_sockets[client];
sn->setEnabled (false);
delete sn;
}
void
MDNSQuery::add_fd (DNSServiceRef client)
{
QSocketNotifier *sn = new QSocketNotifier (DNSServiceRefSockFD (client),
QSocketNotifier::Read, this);
connect (sn, SIGNAL (activated (int)), this, SLOT (process (int)));
sn->setEnabled (true);
m_sockets.insert (client, sn);
m_sockets_fd.insert (sn->socket (), client);
}
void
MDNSQuery::process (int fd)
{
DNSServiceErrorType err;
DNSServiceRef ref = m_sockets_fd[fd];
err = DNSServiceProcessResult (ref);
if (err != kDNSServiceErr_NoError) {
qWarning ("error in MDNS process!");
}
}
void
MDNSQuery::browse_service (const QString &service)
{
DNSServiceErrorType err;
m_service = service;
err = DNSServiceBrowse (&m_client, 0, kDNSServiceInterfaceIndexAny,
service.toAscii (), 0,
browse_reply, static_cast<void *> (this));
if (err != kDNSServiceErr_NoError) {
qWarning ("can't setup the browser!");
return;
}
add_fd (m_client);
}
#endif /* HAVE DNSSD */
MDNSQuery::MDNSQuery (QObject *parent) : QObject (parent)
{
}
#ifndef HAVE_DNSSD
void
MDNSQuery::browse_service (const QString &service)
{
/* noop */
}
#endif
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