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tdelibs/tdecore/network/kresolverstandardworkers.cpp

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/* -*- C++ -*-
* Copyright (C) 2003,2004 Thiago Macieira <thiago.macieira@kdemail.net>
*
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <config.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>
#include <netdb.h>
#include <errno.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef HAVE_NET_IF_H
#include <net/if.h>
#endif
#include <tqthread.h>
#include <tqmutex.h>
#include <tqstrlist.h>
#include <tqfile.h>
#include "kdebug.h"
#include "kglobal.h"
#include "kstandarddirs.h"
#include "kapplication.h"
#include "kresolver.h"
#include "tdesocketaddress.h"
#include "kresolverstandardworkers_p.h"
struct hostent;
struct addrinfo;
using namespace KNetwork;
using namespace KNetwork::Internal;
static bool hasIPv6()
{
#ifndef AF_INET6
return false;
#else
if (getenv("KDE_NO_IPV6") != 0L)
return false;
int fd = ::socket(AF_INET6, SOCK_STREAM, 0);
if (fd == -1)
return false;
::close(fd);
return true;
#endif
}
// blacklist management
static TQMutex blacklistMutex; // KDE4: change to a QReadWriteLock
TQStringList KBlacklistWorker::blacklist;
void KBlacklistWorker::init()
{
// HACK!
// FIXME KDE4: How do I detect there is an instance, without triggering
// its creation or an assertion fault?
if (!KGlobal::_instance)
return;
static bool beenhere = false;
if (beenhere)
return;
beenhere = true;
loadBlacklist();
}
void KBlacklistWorker::loadBlacklist()
{
TQMutexLocker locker(&blacklistMutex);
TQStringList filelist = KGlobal::dirs()->findAllResources("config", "ipv6blacklist");
TQStringList::ConstIterator it = filelist.constBegin(),
end = filelist.constEnd();
for ( ; it != end; ++it)
{
// for each file, each line is a domainname to be blacklisted
TQFile f(*it);
if (!f.open(IO_ReadOnly))
continue;
TQTextStream stream(&f);
stream.setEncoding(TQTextStream::Latin1);
for (TQString line = stream.readLine(); !line.isNull();
line = stream.readLine())
{
if (line.isEmpty())
continue;
// make sure there are no surrounding whitespaces
// and that it starts with .
line = line.stripWhiteSpace();
if (line[0] != '.')
line.prepend('.');
blacklist.append(line.lower());
}
}
}
// checks the blacklist to see if the domain is listed
// it matches the domain ending part
bool KBlacklistWorker::isBlacklisted(const TQString& host)
{
KBlacklistWorker::init();
// empty hostnames cannot be blacklisted
if (host.isEmpty())
return false;
// KDE4: QLatin1String
TQString ascii = TQString::fromLatin1(KResolver::domainToAscii(host));
TQMutexLocker locker(&blacklistMutex);
// now find out if this hostname is present
TQStringList::ConstIterator it = blacklist.constBegin(),
end = blacklist.constEnd();
for ( ; it != end; ++it)
if (ascii.endsWith(*it))
return true;
// no match:
return false;
}
bool KBlacklistWorker::preprocess()
{
if (isBlacklisted(nodeName()))
{
results.setError(KResolver::NoName);
finished();
return true;
}
return false;
}
bool KBlacklistWorker::run()
{
results.setError(KResolver::NoName);
finished();
return false; // resolution failure
}
namespace
{
/*
* Note on the use of the system resolver functions:
*
* In all cases, we prefer to use the new getaddrinfo(3) call. That means
* it will always be used if it is found.
*
* If it's not found, we have the option to use gethostbyname2_r,
* gethostbyname_r, gethostbyname2 and gethostbyname. If gethostbyname2_r
* is defined, we will use it.
*
* If it's not defined, we have to choose between the non-reentrant
* gethostbyname2 and the reentrant but IPv4-only gethostbyname_r:
* we will choose gethostbyname2 if AF_INET6 is defined.
*
* Lastly, gethostbyname will be used if nothing else is present.
*/
#ifndef HAVE_GETADDRINFO
# if defined(HAVE_GETHOSTBYNAME2_R)
# define USE_GETHOSTBYNAME2_R
# elif defined(HAVE_GETHOSTBYNAME_R) && (!defined(AF_INET6) || !defined(HAVE_GETHOSTBYNAME2))
# define USE_GETHOSTBYNAME_R
# elif defined(HAVE_GETHOSTBYNAME2)
# define USE_GETHOSTBYNAME2)
# else
# define USE_GETHOSTBYNAME
# endif
class GetHostByNameThread: public KResolverWorkerBase
{
public:
TQCString m_hostname; // might be different!
TQ_UINT16 m_port;
int m_scopeid;
int m_af;
KResolverResults& results;
GetHostByNameThread(const char * hostname, TQ_UINT16 port,
int scopeid, int af, KResolverResults* res) :
m_hostname(hostname), m_port(port), m_scopeid(scopeid), m_af(af),
results(*res)
{ }
~GetHostByNameThread()
{ }
virtual bool preprocess()
{ return true; }
virtual bool run();
void processResults(hostent* he, int my_h_errno);
};
bool GetHostByNameThread::run()
{
hostent *resultptr;
hostent my_results;
unsigned buflen = 1024;
int res;
int my_h_errno;
char *buf = 0L;
// qDebug("ResolveThread::run(): started threaded gethostbyname for %s (af = %d)",
// m_hostname.data(), m_af);
ResolverLocker resLock( this );
do
{
res = 0;
my_h_errno = HOST_NOT_FOUND;
// check blacklist
if (m_af != AF_INET &&
KBlacklistWorker::isBlacklisted(TQString::fromLatin1(m_hostname)))
break;
# ifdef USE_GETHOSTBYNAME2_R
buf = new char[buflen];
res = gethostbyname2_r(m_hostname, m_af, &my_results, buf, buflen,
&resultptr, &my_h_errno);
# elif defined(USE_GETHOSTBYNAME_R)
if (m_af == AF_INET)
{
buf = new char[buflen];
res = gethostbyname_r(m_hostname, &my_results, buf, buflen,
&resultptr, &my_h_errno);
}
else
resultptr = 0; // signal error
# elif defined(USE_GETHOSTBYNAME2)
// must lock mutex
resultptr = gethostbyname2(m_hostname, m_af);
my_h_errno = h_errno;
# else
if (m_af == AF_INET)
{
// must lock mutex
resultptr = gethostbyname(m_hostname);
my_h_errno = h_errno;
}
else
resultptr = 0;
# endif
if (resultptr != 0L)
my_h_errno = 0;
// qDebug("GetHostByNameThread::run(): gethostbyname for %s (af = %d) returned: %d",
// m_hostname.data(), m_af, my_h_errno);
if (res == ERANGE)
{
// Enlarge the buffer
buflen += 1024;
delete [] buf;
buf = new char[buflen];
}
if ((res == ERANGE || my_h_errno != 0) && checkResolver())
{
// resolver needs updating, so we might as well do it now
resLock.openClose();
}
}
while (res == ERANGE);
processResults(resultptr, my_h_errno);
delete [] buf;
finished();
return results.error() == KResolver::NoError;
}
void GetHostByNameThread::processResults(hostent *he, int herrno)
{
if (herrno)
{
qDebug("KStandardWorker::processResults: got error %d", herrno);
switch (herrno)
{
case HOST_NOT_FOUND:
results.setError(KResolver::NoName);
return;
case TRY_AGAIN:
results.setError(KResolver::TryAgain);
return;
case NO_RECOVERY:
results.setError(KResolver::NonRecoverable);
return;
case NO_ADDRESS:
results.setError(KResolver::NoName);
return;
default:
results.setError(KResolver::UnknownError);
return;
}
}
else if (he == 0L)
{
results.setError(KResolver::NoName);
return; // this was an error
}
// clear any errors
setError(KResolver::NoError);
results.setError(KResolver::NoError);
// we process results in the reverse order
// that is, we prepend each result to the list of results
int proto = protocol();
int socktype = socketType();
if (socktype == 0)
socktype = SOCK_STREAM; // default
TQString canon = KResolver::domainToUnicode(TQString::fromLatin1(he->h_name));
KInetSocketAddress sa;
sa.setPort(m_port);
if (he->h_addrtype != AF_INET)
sa.setScopeId(m_scopeid); // this will also change the socket into IPv6
for (int i = 0; he->h_addr_list[i]; i++)
{
sa.setHost(KIpAddress(he->h_addr_list[i], he->h_addrtype == AF_INET ? 4 : 6));
results.prepend(KResolverEntry(sa, socktype, proto, canon, m_hostname));
// qDebug("KStandardWorker::processResults: adding %s", sa.toString().latin1());
}
// qDebug("KStandardWorker::processResults: added %d entries", i);
}
#else // HAVE_GETADDRINFO
class GetAddrInfoThread: public KResolverWorkerBase
{
public:
TQCString m_node;
TQCString m_serv;
int m_af;
int m_flags;
KResolverResults& results;
GetAddrInfoThread(const char* node, const char* serv, int af, int flags,
KResolverResults* res) :
m_node(node), m_serv(serv), m_af(af), m_flags(flags), results(*res)
{ }
~GetAddrInfoThread()
{ }
virtual bool preprocess()
{ return true; }
virtual bool run();
void processResults(addrinfo* ai, int ret_code, KResolverResults& rr);
};
bool GetAddrInfoThread::run()
{
// check blacklist
if ((m_af != AF_INET && m_af != AF_UNSPEC) &&
KBlacklistWorker::isBlacklisted(TQString::fromLatin1(m_node)))
{
results.setError(KResolver::NoName);
finished();
return false; // failed
}
do
{
ResolverLocker resLock( this );
// process hints
addrinfo hint;
memset(&hint, 0, sizeof(hint));
hint.ai_family = m_af;
hint.ai_socktype = socketType();
hint.ai_protocol = protocol();
if (hint.ai_socktype == 0)
hint.ai_socktype = SOCK_STREAM; // default
if (m_flags & KResolver::Passive)
hint.ai_flags |= AI_PASSIVE;
if (m_flags & KResolver::CanonName)
hint.ai_flags |= AI_CANONNAME;
# ifdef AI_NUMERICHOST
if (m_flags & KResolver::NoResolve)
hint.ai_flags |= AI_NUMERICHOST;
# endif
# ifdef AI_ADDRCONFIG
hint.ai_flags |= AI_ADDRCONFIG;
# endif
// now we do the blocking processing
if (m_node.isEmpty())
m_node = "*";
addrinfo *result;
int res = getaddrinfo(m_node, m_serv, &hint, &result);
// kdDebug(179) << k_funcinfo << "getaddrinfo(\""
// << m_node << "\", \"" << m_serv << "\", af="
// << m_af << ") returned " << res << endl;
if (res != 0)
{
if (checkResolver())
{
// resolver requires reinitialisation
resLock.openClose();
continue;
}
switch (res)
{
case EAI_BADFLAGS:
results.setError(KResolver::BadFlags);
break;
#ifdef EAI_NODATA
// In some systems, EAI_NODATA was #define'd to EAI_NONAME which would break this case.
#if EAI_NODATA != EAI_NONAME
case EAI_NODATA: // it was removed in RFC 3493
#endif
#endif
case EAI_NONAME:
results.setError(KResolver::NoName);
break;
case EAI_AGAIN:
results.setError(KResolver::TryAgain);
break;
case EAI_FAIL:
results.setError(KResolver::NonRecoverable);
break;
case EAI_FAMILY:
results.setError(KResolver::UnsupportedFamily);
break;
case EAI_SOCKTYPE:
results.setError(KResolver::UnsupportedSocketType);
break;
case EAI_SERVICE:
results.setError(KResolver::UnsupportedService);
break;
case EAI_MEMORY:
results.setError(KResolver::Memory);
break;
case EAI_SYSTEM:
results.setError(KResolver::SystemError, errno);
break;
default:
results.setError(KResolver::UnknownError, errno);
break;
}
finished();
return false; // failed
}
// if we are here, lookup succeeded
TQString canon;
const char *previous_canon = 0L;
for (addrinfo* p = result; p; p = p->ai_next)
{
// cache the last canon name to avoid doing the ToUnicode processing unnecessarily
if ((previous_canon && !p->ai_canonname) ||
(!previous_canon && p->ai_canonname) ||
(p->ai_canonname != previous_canon &&
strcmp(p->ai_canonname, previous_canon) != 0))
{
canon = KResolver::domainToUnicode(TQString::fromAscii(p->ai_canonname));
previous_canon = p->ai_canonname;
}
results.append(KResolverEntry(p->ai_addr, p->ai_addrlen, p->ai_socktype,
p->ai_protocol, canon, m_node));
}
freeaddrinfo(result);
results.setError(KResolver::NoError);
finished();
return results.error() == KResolver::NoError;
}
while (true);
}
#endif // HAVE_GETADDRINFO
} // namespace
bool KStandardWorker::sanityCheck()
{
// check that the requested values are sensible
if (!nodeName().isEmpty())
{
TQString node = nodeName();
if (node.find('%') != -1)
node.truncate(node.find('%'));
if (node.isEmpty() || node == TQString::fromLatin1("*") ||
node == TQString::fromLatin1("localhost"))
m_encodedName.truncate(0);
else
{
m_encodedName = KResolver::domainToAscii(node);
if (m_encodedName.isNull())
{
qDebug("could not encode hostname '%s' (UTF-8)", node.utf8().data());
setError(KResolver::NoName);
return false; // invalid hostname!
}
// qDebug("Using encoded hostname '%s' for '%s' (UTF-8)", m_encodedName.data(),
// node.utf8().data());
}
}
else
m_encodedName.truncate(0); // just to be sure, but it should be clear already
if (protocol() == -1)
{
setError(KResolver::NonRecoverable);
return false; // user passed invalid protocol name
}
return true; // it's sane
}
bool KStandardWorker::resolveScopeId()
{
// we must test the original name, not the encoded one
scopeid = 0;
int pos = nodeName().findRev('%');
if (pos == -1)
return true;
TQString scopename = nodeName().mid(pos + 1);
bool ok;
scopeid = scopename.toInt(&ok);
if (!ok)
{
// it's not a number
// therefore, it's an interface name
#ifdef HAVE_IF_NAMETOINDEX
scopeid = if_nametoindex(scopename.latin1());
#else
scopeid = 0;
#endif
}
return true;
}
bool KStandardWorker::resolveService()
{
// find the service first
bool ok;
port = serviceName().toUInt(&ok);
if (!ok)
{
// service name does not contain a port number
// must be a name
if (serviceName().isEmpty() || serviceName().compare(TQString::fromLatin1("*")) == 0)
port = 0;
else
{
// it's a name. We need the protocol name in order to lookup.
TQCString protoname = protocolName();
if (protoname.isEmpty() && protocol())
{
protoname = KResolver::protocolName(protocol()).first();
// if it's still empty...
if (protoname.isEmpty())
{
// lookup failed!
setError(KResolver::NoName);
return false;
}
}
else
protoname = "tcp";
// it's not, so we can do a port lookup
int result = KResolver::servicePort(serviceName().latin1(), protoname);
if (result == -1)
{
// lookup failed!
setError(KResolver::NoName);
return false;
}
// it worked, we have a port number
port = (TQ_UINT16)result;
}
}
// we found a port
return true;
}
KResolver::ErrorCodes KStandardWorker::addUnix()
{
// before trying to add, see if the user wants Unix sockets
if ((familyMask() & KResolver::UnixFamily) == 0)
// no, Unix sockets are not wanted
return KResolver::UnsupportedFamily;
// now check if the requested data are good for a Unix socket
if (!m_encodedName.isEmpty())
return KResolver::AddrFamily; // non local hostname
if (protocol() || !protocolName().isEmpty())
return KResolver::BadFlags; // cannot have Unix sockets with protocols
TQString pathname = serviceName();
if (pathname.isEmpty())
return KResolver::NoName;; // no path?
if (pathname[0] != '/')
// non absolute pathname
// put it in /tmp
pathname.prepend("/tmp/");
// qDebug("QNoResolveWorker::addUnix(): adding Unix socket for %s", pathname.local8Bit().data());
KUnixSocketAddress sa(pathname);
int socktype = socketType();
if (socktype == 0)
socktype = SOCK_STREAM; // default
results.append(KResolverEntry(sa, socktype, 0));
setError(KResolver::NoError);
return KResolver::NoError;
}
bool KStandardWorker::resolveNumerically()
{
// if the NoResolve flag is active, our result from this point forward
// will always be true, even if the resolution failed.
// that indicates that our result is authoritative.
bool wantV4 = familyMask() & KResolver::IPv4Family,
wantV6 = familyMask() & KResolver::IPv6Family;
if (!wantV6 && !wantV4)
// no Internet address is wanted!
return (flags() & KResolver::NoResolve);
// now try to find results
if (!resolveScopeId() || !resolveService())
return (flags() & KResolver::NoResolve);
// we have scope IDs and port numbers
// now try to resolve the hostname numerically
KInetSocketAddress sa;
setError(KResolver::NoError);
sa.setHost(KIpAddress(TQString::fromLatin1(m_encodedName)));
// if it failed, the length was reset to 0
bool ok = sa.length() != 0;
sa.setPort(port);
if (sa.ipVersion() == 6)
sa.setScopeId(scopeid);
int proto = protocol();
int socktype = socketType();
if (socktype == 0)
socktype = SOCK_STREAM;
if (ok)
{
// the given hostname was successfully converted to an IP address
// check if the user wanted this kind of address
if ((sa.ipVersion() == 4 && wantV4) ||
(sa.ipVersion() == 6 && wantV6))
results.append(KResolverEntry(sa, socktype, proto));
else
{
// Note: the address *IS* a numeric IP
// but it's not of the kind the user asked for
//
// that means that it cannot be a Unix socket (because it's an IP)
// and that means that no resolution will tell us otherwise
//
// This is a failed resolution
setError(KResolver::AddrFamily);
return true;
}
}
else if (m_encodedName.isEmpty())
{
// user wanted localhost
if (flags() & KResolver::Passive)
{
if (wantV6)
{
sa.setHost(KIpAddress::anyhostV6);
results.append(KResolverEntry(sa, socktype, proto));
}
if (wantV4)
{
sa.setHost(KIpAddress::anyhostV4);
results.append(KResolverEntry(sa, socktype, proto));
}
}
else
{
if (wantV6)
{
sa.setHost(KIpAddress::localhostV6);
results.append(KResolverEntry(sa, socktype, proto));
}
if (wantV4)
{
sa.setHost(KIpAddress::localhostV4);
results.append(KResolverEntry(sa, socktype, proto));
}
}
ok = true;
}
else
{
// probably bad flags, since the address is not convertible without
// resolution
setError(KResolver::BadFlags);
ok = false;
}
return ok || (flags() & KResolver::NoResolve);
}
bool KStandardWorker::preprocess()
{
// check sanity
if (!sanityCheck())
return false;
// this worker class can only handle known families
if (familyMask() & KResolver::UnknownFamily)
{
setError(KResolver::UnsupportedFamily);
return false; // we don't know about this
}
// check the socket types
if (socketType() != SOCK_STREAM && socketType() != SOCK_DGRAM && socketType() != 0)
{
setError(KResolver::UnsupportedSocketType);
return false;
}
// check if we can resolve all numerically
// resolveNumerically always returns true if the NoResolve flag is set
if (resolveNumerically() || m_encodedName.isEmpty())
{
// indeed, we have resolved numerically
setError(addUnix());
if (results.count())
setError(KResolver::NoError);
finished();
return true;
}
// check if the user wants something we know about
#ifdef AF_INET6
# define mask (KResolver::IPv6Family | KResolver::IPv4Family | KResolver::UnixFamily)
#else
# define mask (KResolver::IPv4Family | KResolver::UnixFamily)
#endif
if ((familyMask() & mask) == 0)
// errr... nothing we know about
return false;
#undef mask
return true; // it's ok
}
bool KStandardWorker::run()
{
#ifndef HAVE_GETADDRINFO
// check the scope id first
// since most of the resolutions won't have a scope id, this should be fast
// and we won't have wasted time on services if this fails
if (!resolveScopeId())
return false;
// resolve the service now, before entering the blocking operation
if (!resolveService())
return false;
#endif
// good
// now we need the hostname
setError(KResolver::NoName);
// these are the family types that we know of
struct
{
KResolver::SocketFamilies mask;
int af;
} families[] = { { KResolver::IPv4Family, AF_INET }
#ifdef AF_INET6
, { KResolver::IPv6Family, AF_INET6 }
#endif
};
int familyCount = sizeof(families)/sizeof(families[0]);
bool skipIPv6 = !hasIPv6();
resultList.setAutoDelete(true);
for (int i = 0; i < familyCount; i++)
if (familyMask() & families[i].mask)
{
#ifdef AF_INET6
if (skipIPv6 && families[i].af == AF_INET6)
continue;
#endif
KResolverWorkerBase *worker;
KResolverResults *res = new KResolverResults;
resultList.append(res);
#ifdef HAVE_GETADDRINFO
worker = new GetAddrInfoThread(m_encodedName,
serviceName().latin1(),
families[i].af, flags(), res);
#else
worker = new GetHostByNameThread(m_encodedName, port, scopeid,
families[i].af, res);
#endif
enqueue(worker);
}
// not finished
return true;
}
bool KStandardWorker::postprocess()
{
if (results.count())
return true; // no need
// now copy over what we need from the underlying results
// start backwards because IPv6 was launched later (if at all)
if (resultList.isEmpty())
{
results.setError(KResolver::NoName);
return true;
}
KResolverResults *rr = resultList.last();
while (rr)
{
if (!rr->isEmpty())
{
results.setError(KResolver::NoError);
KResolverResults::Iterator it = rr->begin();
for ( ; it != rr->end(); ++it)
results.append(*it);
}
else if (results.isEmpty())
// this generated an error
// copy the error code over
setError(rr->error(), rr->systemError());
rr = resultList.prev();
}
resultList.clear();
return true;
}
#ifdef HAVE_GETADDRINFO
KGetAddrinfoWorker::~KGetAddrinfoWorker()
{
}
bool KGetAddrinfoWorker::preprocess()
{
// getaddrinfo(3) can always handle any kind of request that makes sense
if (!sanityCheck())
return false;
if (flags() & KResolver::NoResolve)
// oops, numeric resolution?
return run();
return true;
}
bool KGetAddrinfoWorker::run()
{
// make an AF_UNSPEC getaddrinfo(3) call
GetAddrInfoThread worker(m_encodedName, serviceName().latin1(),
AF_UNSPEC, flags(), &results);
if (!worker.run())
{
if (wantThis(AF_UNIX))
{
if (addUnix() == KResolver::NoError)
setError(KResolver::NoError);
}
else
setError(worker.results.error(), worker.results.systemError());
return false;
}
// The worker has finished working
// now copy over only what we may want
// keep track of any Unix-domain sockets
bool seen_unix = false;
KResolverResults::Iterator it = results.begin();
for ( ; it != results.end(); )
{
if ((*it).family() == AF_UNIX)
seen_unix = true;
if (!wantThis((*it).family()))
it = results.remove(it);
else
++it;
}
if (!seen_unix)
addUnix();
finished();
return true;
}
bool KGetAddrinfoWorker::wantThis(int family)
{
// tells us if the user wants a socket of this family
#ifdef AF_INET6
if (family == AF_INET6 && familyMask() & KResolver::IPv6Family)
return true;
#endif
if (family == AF_INET && familyMask() & KResolver::IPv4Family)
return true;
if (family == AF_UNIX && familyMask() & KResolver::UnixFamily)
return true;
// it's not a family we know about...
if (familyMask() & KResolver::UnknownFamily)
return true;
return false;
}
#endif
void KNetwork::Internal::initStandardWorkers()
{
//KResolverWorkerFactoryBase::registerNewWorker(new KResolverWorkerFactory<KBlacklistWorker>);
KResolverWorkerFactoryBase::registerNewWorker(new KResolverWorkerFactory<KStandardWorker>);
#ifdef HAVE_GETADDRINFO
KResolverWorkerFactoryBase::registerNewWorker(new KResolverWorkerFactory<KGetAddrinfoWorker>);
#endif
}