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-rw-r--r--tdecore/kextsock.cpp2251
1 files changed, 2251 insertions, 0 deletions
diff --git a/tdecore/kextsock.cpp b/tdecore/kextsock.cpp
new file mode 100644
index 000000000..5aad239bd
--- /dev/null
+++ b/tdecore/kextsock.cpp
@@ -0,0 +1,2251 @@
+/*
+ * This file is part of the KDE libraries
+ * Copyright (C) 2000-2004 Thiago Macieira <thiago.macieira@kdemail.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ **/
+
+#include <config.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/times.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <sys/un.h>
+
+#include <stdio.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#include <netdb.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <tqglobal.h>
+#include <tqstring.h>
+#include <tqiodevice.h>
+#include <tqsocketnotifier.h>
+#include <tqguardedptr.h>
+
+#include "kresolver.h"
+
+#include "kdebug.h"
+#include "kextsock.h"
+#include "ksockaddr.h"
+#include "ksocks.h"
+
+#ifdef __CYGWIN__
+#include "netsupp.h"
+#endif
+
+using namespace KNetwork;
+
+//
+// Internal class definitions
+//
+
+class KExtendedSocketPrivate
+{
+public:
+ int flags; // socket flags
+ int status; // status
+ int syserror; // the system error value
+
+ timeval timeout; // connection/acception timeout
+
+ KResolver resRemote; // the resolved addresses
+ KResolver resLocal; // binding resolution
+ unsigned current; // used by the asynchronous connection
+
+ ::KSocketAddress *local; // local socket address
+ ::KSocketAddress *peer; // peer socket address
+
+ TQSocketNotifier *qsnIn, *qsnOut;
+ int inMaxSize, outMaxSize;
+ bool emitRead : 1, emitWrite : 1;
+ mutable bool addressReusable : 1, ipv6only : 1;
+
+ KExtendedSocketPrivate() :
+ flags(0), status(0), syserror(0),
+ current(0), local(0), peer(0),
+ qsnIn(0), qsnOut(0), inMaxSize(-1), outMaxSize(-1), emitRead(false), emitWrite(false),
+ addressReusable(false), ipv6only(false)
+ {
+ timeout.tv_sec = timeout.tv_usec = 0;
+ }
+};
+
+// translate KExtendedSocket flags into KResolver ones
+static bool process_flags(int flags, int& socktype, int& familyMask, int& outflags)
+{
+ switch (flags & (KExtendedSocket::streamSocket | KExtendedSocket::datagramSocket | KExtendedSocket::rawSocket))
+ {
+ case 0:
+ /* No flags given, use default */
+
+ case KExtendedSocket::streamSocket:
+ /* streaming socket requested */
+ socktype = SOCK_STREAM;
+ break;
+
+ case KExtendedSocket::datagramSocket:
+ /* datagram packet socket requested */
+ socktype = SOCK_DGRAM;
+ break;
+
+ case KExtendedSocket::rawSocket:
+ /* raw socket requested. I wouldn't do this if I were you... */
+ socktype = SOCK_RAW;
+ break;
+
+ default:
+ /* the flags were used in an invalid manner */
+ return false;
+ }
+
+ if (flags & KExtendedSocket::knownSocket)
+ {
+ familyMask = 0;
+ if ((flags & KExtendedSocket::unixSocket) == KExtendedSocket::unixSocket)
+ familyMask |= KResolver::UnixFamily;
+
+ switch ((flags & (KExtendedSocket::ipv6Socket|KExtendedSocket::ipv4Socket)))
+ {
+ case KExtendedSocket::ipv4Socket:
+ familyMask |= KResolver::IPv4Family;
+ break;
+ case KExtendedSocket::ipv6Socket:
+ familyMask |= KResolver::IPv6Family;
+ break;
+ case KExtendedSocket::inetSocket:
+ familyMask |= KResolver::InternetFamily;
+ break;
+ }
+
+ // those are all the families we know about
+ }
+ else
+ familyMask = KResolver::KnownFamily;
+
+ /* check other flags */
+ outflags = (flags & KExtendedSocket::passiveSocket ? KResolver::Passive : 0) |
+ (flags & KExtendedSocket::canonName ? KResolver::CanonName : 0) |
+ (flags & KExtendedSocket::noResolve ? KResolver::NoResolve : 0);
+
+ if (getenv("KDE_NO_IPV6"))
+ familyMask &= ~KResolver::IPv6Family;
+
+ return true;
+}
+
+// "skips" at most len bytes from file descriptor fd
+// that is, we will try and read that much data and discard
+// it. We will stop when we have read those or when the read
+// function returns error
+static int skipData(int fd, unsigned len)
+{
+ char buf[1024];
+ unsigned skipped = 0;
+ while (len)
+ {
+ int count = sizeof(buf);
+ if ((unsigned)count > len)
+ count = len;
+ count = KSocks::self()->read(fd, buf, count);
+ if (count == -1)
+ return -1;
+ else
+ {
+ len -= count;
+ skipped += count;
+ }
+ }
+ return skipped;
+}
+
+/*
+ * class KExtendedSocket
+ */
+
+// default constructor
+KExtendedSocket::KExtendedSocket() :
+ sockfd(-1), d(new KExtendedSocketPrivate)
+{
+}
+
+// constructor with hostname
+KExtendedSocket::KExtendedSocket(const TQString& host, int port, int flags) :
+ sockfd(-1), d(new KExtendedSocketPrivate)
+{
+ setAddress(host, port);
+ setSocketFlags(flags);
+}
+
+// same
+KExtendedSocket::KExtendedSocket(const TQString& host, const TQString& service, int flags) :
+ sockfd(-1), d(new KExtendedSocketPrivate)
+{
+ setAddress(host, service);
+ setSocketFlags(flags);
+}
+
+// destroy the class
+KExtendedSocket::~KExtendedSocket()
+{
+ closeNow();
+
+ if (d->local != NULL)
+ delete d->local;
+ if (d->peer != NULL)
+ delete d->peer;
+
+ if (d->qsnIn != NULL)
+ delete d->qsnIn;
+ if (d->qsnOut != NULL)
+ delete d->qsnOut;
+
+ delete d;
+}
+
+#ifdef USE_QT3
+void KExtendedSocket::reset()
+#endif // USE_QT3
+#ifdef USE_QT4
+bool KExtendedSocket::reset()
+#endif // USE_QT4
+{
+ closeNow();
+ release();
+ d->current = 0;
+ d->status = nothing;
+ d->syserror = 0;
+}
+
+int KExtendedSocket::socketStatus() const
+{
+ return d->status;
+}
+
+void KExtendedSocket::setSocketStatus(int newstatus)
+{
+ d->status = newstatus;
+}
+
+void KExtendedSocket::setError(int errorcode, int syserror)
+{
+ setqStatus(errorcode);
+ d->syserror = syserror;
+}
+
+int KExtendedSocket::systemError() const
+{
+ return d->syserror;
+}
+
+/*
+ * Sets socket flags
+ * This is only allowed if we are in nothing state
+ */
+int KExtendedSocket::setSocketFlags(int flags)
+{
+ if (d->status > nothing)
+ return -1; // error!
+
+ return d->flags = flags;
+}
+
+int KExtendedSocket::socketFlags() const
+{
+ return d->flags;
+}
+
+/*
+ * Sets socket target hostname
+ * This is only allowed if we are in nothing state
+ */
+bool KExtendedSocket::setHost(const TQString& host)
+{
+ if (d->status > nothing)
+ return false; // error!
+
+ d->resRemote.setNodeName(host);
+ return true;
+}
+
+/*
+ * returns the hostname
+ */
+TQString KExtendedSocket::host() const
+{
+ return d->resRemote.nodeName();
+}
+
+/*
+ * Sets the socket target port/service
+ * Same thing: only state 'nothing'
+ */
+bool KExtendedSocket::setPort(int port)
+{
+ return setPort(TQString::number(port));
+}
+
+bool KExtendedSocket::setPort(const TQString& service)
+{
+ if (d->status > nothing)
+ return false; // error
+
+ d->resRemote.setServiceName(service);
+ return true;
+}
+
+/*
+ * returns the service port number
+ */
+TQString KExtendedSocket::port() const
+{
+ return d->resRemote.serviceName();
+}
+
+/*
+ * sets the address
+ */
+bool KExtendedSocket::setAddress(const TQString& host, int port)
+{
+ return setHost(host) && setPort(port);
+}
+
+/*
+ * the same
+ */
+bool KExtendedSocket::setAddress(const TQString& host, const TQString& serv)
+{
+ return setHost(host) && setPort(serv);
+}
+
+/*
+ * Sets the bind hostname
+ * This is only valid in the 'nothing' state and if this is not a
+ * passiveSocket socket
+ */
+bool KExtendedSocket::setBindHost(const TQString& host)
+{
+ if (d->status > nothing || d->flags & passiveSocket)
+ return false; // error
+
+ d->resLocal.setServiceName(host);
+ return true;
+}
+
+/*
+ * Unsets the bind hostname
+ * same thing
+ */
+bool KExtendedSocket::unsetBindHost()
+{
+ return setBindHost(TQString::null);
+}
+
+/*
+ * returns the binding host
+ */
+TQString KExtendedSocket::bindHost() const
+{
+ return d->resLocal.serviceName();
+}
+
+/*
+ * Sets the bind port
+ * Same condition as setBindHost
+ */
+bool KExtendedSocket::setBindPort(int port)
+{
+ return setBindPort(TQString::number(port));
+}
+
+bool KExtendedSocket::setBindPort(const TQString& service)
+{
+ if (d->status > nothing || d->flags & passiveSocket)
+ return false; // error
+
+ d->resLocal.setServiceName(service);
+ return true;
+}
+
+/*
+ * unsets the bind port
+ */
+bool KExtendedSocket::unsetBindPort()
+{
+ return setBindPort(TQString::null);
+}
+
+/*
+ * returns the binding port
+ */
+TQString KExtendedSocket::bindPort() const
+{
+ return d->resLocal.serviceName();
+}
+
+/*
+ * sets the binding address
+ */
+bool KExtendedSocket::setBindAddress(const TQString& host, int port)
+{
+ return setBindHost(host) && setBindPort(port);
+}
+
+/*
+ * same
+ */
+bool KExtendedSocket::setBindAddress(const TQString& host, const TQString& service)
+{
+ return setBindHost(host) && setBindPort(service);
+}
+
+/*
+ * unsets binding address
+ */
+bool KExtendedSocket::unsetBindAddress()
+{
+ return unsetBindHost() && unsetBindPort();
+}
+
+/*
+ * sets the timeout for the connection
+ */
+bool KExtendedSocket::setTimeout(int secs, int usecs)
+{
+ if (d->status >= connected) // closed?
+ return false;
+
+ d->timeout.tv_sec = secs;
+ d->timeout.tv_usec = usecs;
+ return true;
+}
+
+/*
+ * returns the timeout
+ */
+timeval KExtendedSocket::timeout() const
+{
+ return d->timeout;
+}
+
+/*
+ * Sets the blocking mode on this socket
+ */
+bool KExtendedSocket::setBlockingMode(bool enable)
+{
+ cleanError();
+ if (d->status < created)
+ return false;
+
+ if (sockfd == -1)
+ return false; // error!
+
+ int fdflags = fcntl(sockfd, F_GETFL, 0);
+ if (fdflags == -1)
+ return false; // error!
+
+ if (!enable)
+ fdflags |= O_NONBLOCK;
+ else
+ fdflags &= ~O_NONBLOCK;
+
+ if (fcntl(sockfd, F_SETFL, fdflags) == -1)
+ {
+ setError(IO_UnspecifiedError, errno);
+ return false;
+ }
+ return true;
+}
+
+/*
+ * Returns the blocking mode on the socket
+ */
+bool KExtendedSocket::blockingMode()
+{
+ cleanError();
+ if (d->status < created)
+ return false; // sockets not created are in blocking mode
+
+ if (sockfd == -1)
+ return false; // error
+
+ int fdflags = fcntl(sockfd, F_GETFL, 0);
+ if (fdflags == -1)
+ {
+ setError(IO_UnspecifiedError, errno);
+ return false;
+ }
+ return (fdflags & O_NONBLOCK) == 0; // non-blocking == false
+}
+
+/*
+ * Sets the reusability flag for this socket in the OS
+ */
+bool KExtendedSocket::setAddressReusable(bool enable)
+{
+ cleanError();
+ d->addressReusable = enable;
+ if (d->status < created)
+ return true;
+
+ if (sockfd == -1)
+ return true;
+
+ if (!setAddressReusable(sockfd, enable))
+ {
+ setError(IO_UnspecifiedError, errno);
+ return false;
+ }
+ return true;
+}
+
+bool KExtendedSocket::setAddressReusable(int fd, bool enable)
+{
+ if (fd == -1)
+ return false;
+
+ int on = enable; // just to be on the safe side
+
+ if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, sizeof(on)) == -1)
+ return false;
+ return true;
+}
+
+/*
+ * Retrieves the reusability flag for this socket
+ */
+bool KExtendedSocket::addressReusable()
+{
+ cleanError();
+ if (d->status < created)
+ return d->addressReusable;
+
+ if (sockfd == -1)
+ return d->addressReusable;
+
+ int on;
+ socklen_t onsiz = sizeof(on);
+ if (getsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, (char*)&on, &onsiz) == -1)
+ {
+ setError(IO_UnspecifiedError, errno);
+ return false;
+ }
+
+ return on != 0;
+}
+
+/*
+ * Set the IPV6_V6ONLY flag
+ */
+bool KExtendedSocket::setIPv6Only(bool enable)
+{
+#ifdef IPV6_V6ONLY
+ cleanError();
+
+ d->ipv6only = enable;
+ if (sockfd == -1)
+ return true; // can't set on a non-existing socket
+
+ int on = enable;
+
+ if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY,
+ (char *)&on, sizeof(on)) == -1)
+ {
+ setError(IO_UnspecifiedError, errno);
+ return false;
+ }
+ else
+ return true;
+
+#else
+ // we don't have the IPV6_V6ONLY constant in this system
+ d->ipv6only = enable;
+
+ setError(IO_UnspecifiedError, ENOSYS);
+ return false; // can't set if we don't know about this flag
+#endif
+}
+
+/*
+ * retrieve the IPV6_V6ONLY flag
+ */
+bool KExtendedSocket::isIPv6Only()
+{
+#ifdef IPV6_V6ONLY
+ cleanError();
+
+ if (d->status < created || sockfd == -1)
+ return d->ipv6only;
+
+ int on;
+ socklen_t onsiz = sizeof(on);
+ if (getsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY,
+ (char *)&on, &onsiz) == -1)
+ {
+ setError(IO_UnspecifiedError, errno);
+ return false;
+ }
+
+ return d->ipv6only = on;
+
+#else
+ // we don't have the constant
+ setError(IO_UnspecifiedError, ENOSYS);
+ return false;
+#endif
+}
+
+/*
+ * Sets the buffer sizes in this socket
+ * Also, we create or delete the socket notifiers
+ */
+bool KExtendedSocket::setBufferSize(int rsize, int wsize)
+{
+ cleanError();
+ if (d->status < created)
+ return false;
+
+ if (sockfd == -1)
+ return false;
+
+ if (d->flags & passiveSocket)
+ return false; // no I/O on passive sockets
+
+ if (rsize < -2)
+ return false;
+
+ if (wsize < -2)
+ return false;
+
+ // LOCK BUFFER MUTEX
+
+ // The input socket notifier is always enabled
+ // That happens because we want to be notified of when the socket gets
+ // closed
+ if (d->qsnIn == NULL)
+ {
+ d->qsnIn = new TQSocketNotifier(sockfd, TQSocketNotifier::Read);
+ TQObject::connect(d->qsnIn, TQT_SIGNAL(activated(int)), this, TQT_SLOT(socketActivityRead()));
+ d->qsnIn->setEnabled(true);
+ }
+
+ if (rsize == 0 && d->flags & inputBufferedSocket)
+ {
+ // user wants to disable input buffering
+ d->flags &= ~inputBufferedSocket;
+
+ consumeReadBuffer(readBufferSize(), NULL, true);
+ d->inMaxSize = 0;
+ }
+ else if (rsize != -2)
+ {
+ // enabling input buffering
+ if (rsize)
+ d->flags |= inputBufferedSocket;
+ d->inMaxSize = rsize;
+
+ if (rsize > 0 && (unsigned)rsize < readBufferSize())
+ // input buffer has more data than the new size; discard
+ consumeReadBuffer(readBufferSize() - rsize, NULL, true);
+
+ }
+
+ if (wsize == 0 && d->flags & outputBufferedSocket)
+ {
+ // disabling output buffering
+ d->flags &= ~outputBufferedSocket;
+ if (d->qsnOut && !d->emitWrite)
+ d->qsnOut->setEnabled(false);
+ consumeWriteBuffer(writeBufferSize());
+ d->outMaxSize = 0;
+ }
+ else if (wsize != -2)
+ {
+ // enabling input buffering
+ if (wsize)
+ d->flags |= outputBufferedSocket;
+ d->outMaxSize = wsize;
+
+ if (wsize > 0 && (unsigned)wsize < writeBufferSize())
+ // output buffer is bigger than it is to become; shrink
+ consumeWriteBuffer(writeBufferSize() - wsize);
+
+ if (d->qsnOut == NULL)
+ {
+ d->qsnOut = new TQSocketNotifier(sockfd, TQSocketNotifier::Write);
+ TQObject::connect(d->qsnOut, TQT_SIGNAL(activated(int)), this, TQT_SLOT(socketActivityWrite()));
+ // if the class is being created now, there's nothing to write yet
+ // so socketActivityWrite() will get called once and disable
+ // the notifier
+ }
+ }
+
+ // UNLOCK BUFFER MUTEX
+
+ setFlags((mode() & ~IO_Raw) | ((d->flags & bufferedSocket) ? 0 : IO_Raw));
+
+ // check we didn't turn something off we shouldn't
+ if (d->emitWrite && d->qsnOut == NULL)
+ {
+ d->qsnOut = new TQSocketNotifier(sockfd, TQSocketNotifier::Write);
+ TQObject::connect(d->qsnOut, TQT_SIGNAL(activated(int)), this, TQT_SLOT(socketActivityWrite()));
+ }
+
+ return true;
+}
+
+/*
+ * Finds the local address for this socket
+ * if we have done this already, we return it. Otherwise, we'll have
+ * to find the socket name
+ */
+const ::KSocketAddress *KExtendedSocket::localAddress()
+{
+ if (d->local != NULL)
+ return d->local;
+ if (d->status < bound)
+ return NULL;
+
+ return d->local = localAddress(sockfd);
+}
+
+/*
+ * Same thing, but for peer address. Which means this does not work on
+ * passiveSocket and that we require to be connected already. Also note that
+ * the behavior on connectionless sockets is not defined here.
+ */
+const ::KSocketAddress* KExtendedSocket::peerAddress()
+{
+ if (d->peer != NULL)
+ return d->peer;
+ if (d->flags & passiveSocket || d->status < connected)
+ return NULL;
+
+ return d->peer = peerAddress(sockfd);
+}
+
+/*
+ * Perform the lookup on the addresses given
+ */
+int KExtendedSocket::lookup()
+{
+ if (startAsyncLookup() != 0)
+ return -1;
+
+ if (!d->resRemote.wait() || !d->resLocal.wait())
+ {
+ d->status = nothing;
+ return -1;
+ }
+
+ d->status = lookupDone;
+ if (d->resRemote.error() != KResolver::NoError)
+ return d->resRemote.error();
+ if (d->resLocal.error() != KResolver::NoError)
+ return d->resLocal.error();
+ return 0;
+}
+
+/*
+ * Performs an asynchronous lookup on the given address(es)
+ */
+int KExtendedSocket::startAsyncLookup()
+{
+ cleanError();
+ if (d->status > lookupInProgress)
+ return -1;
+ if (d->status == lookupInProgress)
+ // already in progress
+ return 0;
+
+ /* check socket type flags */
+ int socktype, familyMask, flags;
+ if (!process_flags(d->flags, socktype, familyMask, flags))
+ return -2;
+
+ // perform the global lookup before
+ if (!d->resRemote.isRunning())
+ {
+ d->resRemote.setFlags(flags);
+ d->resRemote.setFamily(familyMask);
+ d->resRemote.setSocketType(socktype);
+ TQObject::connect(&d->resRemote, TQT_SIGNAL(finished(KResolverResults)),
+ this, TQT_SLOT(dnsResultsReady()));
+
+ if (!d->resRemote.start())
+ {
+ setError(IO_LookupError, d->resRemote.error());
+ return d->resRemote.error();
+ }
+ }
+
+ if ((d->flags & passiveSocket) == 0 && !d->resLocal.isRunning())
+ {
+ /* keep flags, but make this passive */
+ flags |= KResolver::Passive;
+ d->resLocal.setFlags(flags);
+ d->resLocal.setFamily(familyMask);
+ d->resLocal.setSocketType(socktype);
+ TQObject::connect(&d->resLocal, TQT_SIGNAL(finished(KResolverResults)),
+ this, TQT_SLOT(dnsResultsReady()));
+
+ if (!d->resLocal.start())
+ {
+ setError(IO_LookupError, d->resLocal.error());
+ return d->resLocal.error();
+ }
+ }
+
+ // if we are here, there were no errors
+ if (d->resRemote.isRunning() || d->resLocal.isRunning())
+ d->status = lookupInProgress; // only if there actually is a running lookup
+ else
+ {
+ d->status = lookupDone;
+ emit lookupFinished(d->resRemote.results().count() +
+ d->resLocal.results().count());
+ }
+ return 0;
+}
+
+void KExtendedSocket::cancelAsyncLookup()
+{
+ cleanError();
+ if (d->status != lookupInProgress)
+ return; // what's to cancel?
+
+ d->status = nothing;
+ d->resLocal.cancel(false);
+ d->resRemote.cancel(false);
+}
+
+int KExtendedSocket::listen(int N)
+{
+ cleanError();
+ if ((d->flags & passiveSocket) == 0 || d->status >= listening)
+ return -2;
+ if (d->status < lookupDone)
+ if (lookup() != 0)
+ return -2; // error!
+ if (d->resRemote.error())
+ return -2;
+
+ // doing the loop:
+ KResolverResults::const_iterator it;
+ KResolverResults res = d->resRemote.results();
+ for (it = res.begin(); it != res.end(); ++it)
+ {
+ //kdDebug(170) << "Trying to listen on " << (*it).address().toString() << endl;
+ sockfd = ::socket((*it).family(), (*it).socketType(), (*it).protocol());
+ if (sockfd == -1)
+ {
+ // socket failed creating
+ //kdDebug(170) << "Failed to create: " << perror << endl;
+ continue;
+ }
+
+ fcntl(sockfd, F_SETFD, FD_CLOEXEC);
+
+ if (d->addressReusable)
+ setAddressReusable(sockfd, true);
+ setIPv6Only(d->ipv6only);
+ cleanError();
+ if (KSocks::self()->bind(sockfd, (*it).address().address(), (*it).length()) == -1)
+ {
+ //kdDebug(170) << "Failed to bind: " << perror << endl;
+ ::close(sockfd);
+ sockfd = -1;
+ continue;
+ }
+
+ // ok, socket has bound
+ // kdDebug(170) << "Socket bound: " << sockfd << endl;
+
+ d->status = bound;
+ break;
+ }
+
+ if (sockfd == -1)
+ {
+ setError(IO_ListenError, errno);
+ //kdDebug(170) << "Listen error - sockfd is -1 " << endl;
+ return -1;
+ }
+
+ d->status = bound;
+ setFlags(IO_Sequential | IO_Raw | IO_ReadWrite);
+
+ int retval = KSocks::self()->listen(sockfd, N);
+ if (retval == -1)
+ setError(IO_ListenError, errno);
+ else
+ {
+ d->status = listening;
+ d->qsnIn = new TQSocketNotifier(sockfd, TQSocketNotifier::Read);
+ TQObject::connect(d->qsnIn, TQT_SIGNAL(activated(int)), this, TQT_SLOT(socketActivityRead()));
+ }
+ return retval == -1 ? -1 : 0;
+}
+
+int KExtendedSocket::accept(KExtendedSocket *&sock)
+{
+ cleanError();
+ sock = NULL;
+ if ((d->flags & passiveSocket) == 0 || d->status >= accepting)
+ return -2;
+ if (d->status < listening)
+ if (listen() < 0)
+ return -2; // error!
+
+ // let's see
+ // if we have a timeout in place, we have to place this socket in non-blocking
+ // mode
+ bool block = blockingMode();
+ struct sockaddr sa;
+ ksocklen_t len = sizeof(sa);
+ sock = NULL;
+
+ if (d->timeout.tv_sec > 0 || d->timeout.tv_usec > 0)
+ {
+ fd_set set;
+
+ setBlockingMode(false); // turn on non-blocking
+ FD_ZERO(&set);
+ FD_SET(sockfd, &set);
+
+ //kdDebug(170).form("Accepting on %d with %d.%06d second timeout\n",
+ // sockfd, d->timeout.tv_sec, d->timeout.tv_usec);
+ // check if there is anything to accept now
+ int retval = KSocks::self()->select(sockfd + 1, &set, NULL, NULL, &d->timeout);
+ if (retval == -1)
+ {
+ setError(IO_UnspecifiedError, errno);
+ return -1; // system error
+ }
+ else if (retval == 0 || !FD_ISSET(sockfd, &set))
+ {
+ setError(IO_TimeOutError, 0);
+ return -3; // timeout
+ }
+ }
+
+ // it's common stuff here
+ int newfd = KSocks::self()->accept(sockfd, &sa, &len);
+
+ if (newfd == -1)
+ {
+ setError(IO_AcceptError, errno);
+ kdWarning(170) << "Error accepting on socket " << sockfd << ":"
+ << perror << endl;
+ return -1;
+ }
+
+ fcntl(newfd, F_SETFD, FD_CLOEXEC);
+
+ //kdDebug(170).form("Socket %d accepted socket %d\n", sockfd, newfd);
+
+ setBlockingMode(block); // restore blocking mode
+
+ sock = new KExtendedSocket;
+ sock->d->status = connected;
+ sock->sockfd = newfd;
+ sock->setFlags(IO_Sequential | IO_Raw | IO_ReadWrite | IO_Open | IO_Async);
+ sock->setBufferSize(0, 0); // always unbuffered here. User can change that later
+
+ return 0;
+}
+
+/*
+ * tries to connect
+ *
+ * FIXME!
+ * This function is critical path. It has to be cleaned up and made faster
+ */
+int KExtendedSocket::connect()
+{
+ cleanError();
+ if (d->flags & passiveSocket || d->status >= connected)
+ return -2;
+ if (d->status < lookupDone)
+ if (lookup() != 0)
+ return -2;
+
+ timeval end, now;
+ timeval timeout_copy = d->timeout;
+ // Ok, things are a little tricky here
+ // Let me explain
+ // getaddrinfo() will return several different families of sockets
+ // When we have to bind before we connect, we have to make sure we're binding
+ // and connecting to the same family, or things won't work
+
+ KResolverResults remote = d->resRemote.results(),
+ local = d->resLocal.results();
+ KResolverResults::const_iterator it, it2;
+ //kdDebug(170) << "Starting connect to " << host() << '|' << port()
+ // << ": have " << local.count() << " local entries and "
+ // << remote.count() << " remote" << endl;
+
+ int ret = -1;
+ for (it = remote.begin(), it2 = local.begin(); it != remote.end(); ++it)
+ {
+ bool doingtimeout = d->timeout.tv_sec > 0 || d->timeout.tv_usec > 0;
+ if (doingtimeout)
+ {
+ gettimeofday(&end, NULL);
+ end.tv_usec += d->timeout.tv_usec;
+ end.tv_sec += d->timeout.tv_sec;
+ if (end.tv_usec > 1000*1000)
+ {
+ end.tv_usec -= 1000*1000;
+ end.tv_sec++;
+ }
+ //kdDebug(170).form("Connection with timeout of %d.%06d seconds (ends in %d.%06d)\n",
+ // d->timeout.tv_sec, d->timeout.tv_usec, end.tv_sec, end.tv_usec);
+ }
+
+ //kdDebug(170) << "Trying to connect to " << (*it).address().toString() << endl;
+ if (it2 != local.end())
+ {
+// //kdDebug(170) << "Searching bind socket for family " << p->ai_family << endl;
+ if ((*it).family() != (*it2).family())
+ // differing families, scan local for a matching family
+ for (it2 = local.begin(); it2 != local.end(); ++it2)
+ if ((*it).family() == (*it2).family())
+ break;
+
+ if ((*it).family() != (*it2).family())
+ {
+ // no matching families for this
+ //kdDebug(170) << "No matching family for bind socket\n";
+ it2 = local.begin();
+ continue;
+ }
+
+ //kdDebug(170) << "Binding on " << (*it2).address().toString() << " before connect" << endl;
+ errno = 0;
+ sockfd = ::socket((*it).family(), (*it).socketType(), (*it).protocol());
+ setError(IO_ConnectError, errno);
+ if (sockfd == -1)
+ continue; // cannot create this socket
+ fcntl(sockfd, F_SETFD, FD_CLOEXEC);
+ if (d->addressReusable)
+ setAddressReusable(sockfd, true);
+ setIPv6Only(d->ipv6only);
+ cleanError();
+ if (KSocks::self()->bind(sockfd, (*it2).address(), (*it2).length()))
+ {
+ //kdDebug(170) << "Bind failed: " << perror << endl;
+ ::close(sockfd);
+ sockfd = -1;
+ continue;
+ }
+ }
+ else
+ {
+ // no need to bind, just create
+ sockfd = ::socket((*it).family(), (*it).socketType(), (*it).protocol());
+ if (sockfd == -1)
+ {
+ setError(IO_ConnectError, errno);
+ continue;
+ }
+ fcntl(sockfd, F_SETFD, FD_CLOEXEC);
+ if (d->addressReusable)
+ setAddressReusable(sockfd, true);
+ setIPv6Only(d->ipv6only);
+ cleanError();
+ }
+
+// kdDebug(170) << "Socket " << sockfd << " created" << endl;
+ d->status = created;
+
+ // check if we have to do timeout
+ if (doingtimeout && KSocks::self()->hasWorkingAsyncConnect())
+ {
+ fd_set rd, wr;
+
+ setBlockingMode(false);
+
+ // now try and connect
+ if (KSocks::self()->connect(sockfd, (*it).address(), (*it).length()) == -1)
+ {
+ // this could be EWOULDBLOCK
+ if (errno != EWOULDBLOCK && errno != EINPROGRESS)
+ {
+ //kdDebug(170) << "Socket " << sockfd << " did not connect: " << perror << endl;
+ setError(IO_ConnectError, errno);
+ ::close(sockfd);
+ sockfd = -1;
+ continue; // nope, another error
+ }
+
+ FD_ZERO(&rd);
+ FD_ZERO(&wr);
+ FD_SET(sockfd, &rd);
+ FD_SET(sockfd, &wr);
+
+ int retval = KSocks::self()->select(sockfd + 1, &rd, &wr, NULL, &d->timeout);
+ if (retval == -1)
+ {
+ setError(IO_FatalError, errno);
+ continue; // system error
+ }
+ else if (retval == 0)
+ {
+ ::close(sockfd);
+ sockfd = -1;
+// kdDebug(170) << "Time out while trying to connect to " <<
+// (*it).address().toString() << endl;
+ setError(IO_TimeOutError, 0);
+ ret = -3; // time out
+
+ d->timeout.tv_usec += timeout_copy.tv_usec;
+ d->timeout.tv_sec += timeout_copy.tv_sec;
+ if (d->timeout.tv_usec < 0)
+ {
+ d->timeout.tv_usec += 1000*1000;
+ d->timeout.tv_sec--;
+ }
+
+ continue;
+ }
+
+ // adjust remaining time
+ gettimeofday(&now, NULL);
+ d->timeout.tv_sec = end.tv_sec - now.tv_sec;
+ d->timeout.tv_usec = end.tv_usec - now.tv_usec;
+ if (d->timeout.tv_usec < 0)
+ {
+ d->timeout.tv_usec += 1000*1000;
+ d->timeout.tv_sec--;
+ }
+// kdDebug(170).form("Socket %d activity; %d.%06d seconds remaining\n",
+// sockfd, d->timeout.tv_sec, d->timeout.tv_usec);
+
+ // this means that an event occurred in the socket
+ int errcode;
+ socklen_t len = sizeof(errcode);
+ retval = getsockopt(sockfd, SOL_SOCKET, SO_ERROR, (char*)&errcode,
+ &len);
+ if (retval == -1 || errcode != 0)
+ {
+ // socket did not connect
+ //kdDebug(170) << "Socket " << sockfd << " did not connect: "
+ // << strerror(errcode) << endl;
+ ::close(sockfd);
+ sockfd = -1;
+
+ // this is HIGHLY UNLIKELY
+ if (d->timeout.tv_sec == 0 && d->timeout.tv_usec == 0)
+ {
+ d->status = lookupDone;
+ setError(IO_TimeOutError, 0);
+ return -3; // time out
+ }
+
+ setError(IO_ConnectError, errcode);
+ continue;
+ }
+ }
+
+ // getting here means it connected
+ // setBufferSize() takes care of creating the socket notifiers
+ setBlockingMode(true);
+ d->status = connected;
+ setFlags(IO_Sequential | IO_Raw | IO_ReadWrite | IO_Open | IO_Async);
+ setBufferSize(d->flags & inputBufferedSocket ? -1 : 0,
+ d->flags & outputBufferedSocket ? -1 : 0);
+ emit connectionSuccess();
+// kdDebug(170) << "Socket " << sockfd << " connected\n";
+ return 0;
+ }
+ else
+ {
+ // without timeouts
+ if (KSocks::self()->connect(sockfd, (*it).address(), (*it).length()) == -1)
+ {
+ //kdDebug(170) << "Socket " << sockfd << " to " << (*it).address().toString()
+ // << " did not connect: " << perror << endl;
+ setError(IO_ConnectError, errno);
+ ::close(sockfd);
+ sockfd = -1;
+ continue;
+ }
+
+ d->status = connected;
+ setFlags(IO_Sequential | IO_Raw | IO_ReadWrite | IO_Open | IO_Async);
+ setBufferSize(d->flags & inputBufferedSocket ? -1 : 0,
+ d->flags & outputBufferedSocket ? -1 : 0);
+ emit connectionSuccess();
+// kdDebug(170) << "Socket " << sockfd << " connected\n";
+ return 0; // it connected
+ }
+ }
+
+ // getting here means no socket connected or stuff like that
+ emit connectionFailed(d->syserror);
+ //kdDebug(170) << "Failed to connect\n";
+ return ret;
+}
+
+int KExtendedSocket::startAsyncConnect()
+{
+ cleanError();
+ // check status
+ if (d->status >= connected || d->flags & passiveSocket)
+ return -2;
+
+ if (d->status == connecting)
+ // already on async connect
+ return 0;
+
+ // check if we have to do lookup
+ // if we do, then we'll use asynchronous lookup and use
+ // signal lookupFinished to do connection
+ if (d->status < lookupDone)
+ {
+ TQObject::connect(this, TQT_SIGNAL(lookupFinished(int)), this, TQT_SLOT(startAsyncConnectSlot()));
+ if (d->status < lookupInProgress)
+ return startAsyncLookup();
+ else
+ return 0; // we still have to wait
+ }
+
+ // here we have d->status >= lookupDone and <= connecting
+ // we can do our connection
+ d->status = connecting;
+ TQGuardedPtr<TQObject> p = TQT_TQOBJECT(this);
+ connectionEvent();
+ if (!p)
+ return -1; // We have been deleted.
+ if (d->status < connecting)
+ return -1;
+ return 0;
+}
+
+void KExtendedSocket::cancelAsyncConnect()
+{
+ if (d->status != connecting)
+ return;
+
+ if (sockfd != -1)
+ {
+ // we have a waiting connection
+ if (d->qsnIn)
+ delete d->qsnIn;
+ if (d->qsnOut)
+ delete d->qsnOut;
+ d->qsnIn = d->qsnOut = NULL;
+
+ ::close(sockfd);
+ sockfd = -1;
+ }
+ d->status = lookupDone;
+}
+
+bool KExtendedSocket::open(TQ_OpenMode mode)
+{
+ if (mode != IO_Raw | IO_ReadWrite)
+ return false; // invalid open mode
+
+ if (d->flags & passiveSocket)
+ return listen() == 0;
+ else if (d->status < connecting)
+ return connect() == 0;
+ else
+ return false;
+}
+
+void KExtendedSocket::close()
+{
+ if (sockfd == -1 || d->status >= closing)
+ return; // nothing to close
+
+ // LOCK BUFFER MUTEX
+ if (d->flags & outputBufferedSocket && writeBufferSize() > 0)
+ {
+ // write buffer not empty, go into closing state
+ d->status = closing;
+ if (d->qsnIn)
+ delete d->qsnIn;
+ d->qsnIn = NULL;
+ // we keep the outgoing socket notifier because we want
+ // to send data, but not receive
+ }
+ else
+ {
+ // nope, write buffer is empty
+ // we can close now
+ if (d->qsnIn)
+ delete d->qsnIn;
+ if (d->qsnOut)
+ delete d->qsnOut;
+ d->qsnIn = d->qsnOut = NULL;
+
+ ::close(sockfd);
+ d->status = done;
+ emit closed(readBufferSize() != 0 ? availRead : 0);
+ }
+ // UNLOCK BUFFER MUTEX
+}
+
+
+void KExtendedSocket::closeNow()
+{
+ if (d->status >= done)
+ return; // nothing to close
+
+ // close the socket
+ delete d->qsnIn;
+ delete d->qsnOut;
+ d->qsnIn = d->qsnOut = NULL;
+
+ if (d->status > connecting && sockfd != -1)
+ {
+ ::close(sockfd);
+ sockfd = -1;
+ }
+ else if (d->status == connecting)
+ cancelAsyncConnect();
+ else if (d->status == lookupInProgress)
+ cancelAsyncLookup();
+
+ d->status = done;
+
+ emit closed(closedNow |
+ (readBufferSize() != 0 ? availRead : 0) |
+ (writeBufferSize() != 0 ? dirtyWrite : 0));
+}
+
+void KExtendedSocket::release()
+{
+ // release our hold on the socket
+ sockfd = -1;
+ d->status = done;
+
+ d->resRemote.cancel(false);
+ d->resLocal.cancel(false);
+
+ if (d->local != NULL)
+ delete d->local;
+ if (d->peer != NULL)
+ delete d->peer;
+
+ d->peer = d->local = NULL;
+
+ if (d->qsnIn != NULL)
+ delete d->qsnIn;
+ if (d->qsnOut != NULL)
+ delete d->qsnOut;
+
+ d->qsnIn = d->qsnOut = NULL;
+
+ // now that the socket notificators are done with, we can flush out the buffers
+ consumeReadBuffer(readBufferSize(), NULL, true);
+ consumeWriteBuffer(writeBufferSize());
+
+ // don't delete d
+ // leave that for the destructor
+}
+
+void KExtendedSocket::flush()
+{
+ cleanError();
+ if (d->status < connected || d->status >= done || d->flags & passiveSocket)
+ return;
+
+ if (sockfd == -1)
+ return;
+
+ if ((d->flags & outputBufferedSocket) == 0)
+ return; // nothing to do
+
+ // LOCK MUTEX
+
+ unsigned written = 0;
+ unsigned offset = outBufIndex; // this happens only for the first
+ while (writeBufferSize() - written > 0)
+ {
+ // we have to write each output buffer in outBuf
+ // but since we can have several very small buffers, we can make things
+ // better by concatenating a few of them into a big buffer
+ // question is: how big should that buffer be? 16 kB should be enough
+
+ TQByteArray buf(16384);
+ TQByteArray *a = outBuf.first();
+ unsigned count = 0;
+
+ while (a && count + (a->size() - offset) <= buf.size())
+ {
+ memcpy(buf.data() + count, a->data() + offset, a->size() - offset);
+ count += a->size() - offset;
+ offset = 0;
+ a = outBuf.next();
+ }
+
+ // see if we can still fit more
+ if (a && count < buf.size())
+ {
+ // getting here means this buffer (a) is larger than
+ // (buf.size() - count) (even for count == 0).
+ memcpy(buf.data() + count, a->data() + offset, buf.size() - count);
+ offset += buf.size() - count;
+ count = buf.size();
+ }
+
+ // now try to write those bytes
+ int wrote = KSocks::self()->write(sockfd, buf, count);
+
+ if (wrote == -1)
+ {
+ // could be EAGAIN (EWOULDBLOCK)
+ setError(IO_WriteError, errno);
+ break;
+ }
+ written += wrote;
+
+ if ((unsigned)wrote != count)
+ break;
+ }
+ if (written)
+ {
+ consumeWriteBuffer(written);
+ emit bytesWritten(written);
+ }
+
+ // UNLOCK MUTEX
+}
+
+
+TQT_TQIO_LONG KExtendedSocket::tqreadBlock(char *data, TQT_TQIO_ULONG maxlen)
+{
+ cleanError();
+ if (d->status < connected || d->flags & passiveSocket)
+ return -2;
+
+ int retval;
+
+ if ((d->flags & inputBufferedSocket) == 0)
+ {
+ // we aren't buffering this socket, so just pass along
+ // the call to the real read method
+
+ if (sockfd == -1)
+ return -2;
+ if (data)
+ retval = KSocks::self()->read(sockfd, data, maxlen);
+ else
+ retval = skipData(sockfd, maxlen);
+ if (retval == -1)
+ setError(IO_ReadError, errno);
+ }
+ else
+ {
+ // this socket is being buffered. So read from the buffer
+
+ // LOCK BUFFER MUTEX
+
+ retval = consumeReadBuffer(maxlen, data);
+ if (retval == 0)
+ {
+ // consumeReadBuffer returns 0 only if the buffer is
+ // empty
+ if (sockfd == -1)
+ return 0; // buffer is clear now, indicate EOF
+ setError(IO_ReadError, EWOULDBLOCK);
+ retval = -1;
+ }
+
+ // UNLOCK BUFFER MUTEX
+
+ }
+ return retval;
+}
+
+TQT_TQIO_LONG KExtendedSocket::tqwriteBlock(const char *data, TQT_TQIO_ULONG len)
+{
+ cleanError();
+ if (d->status < connected || d->status >= closing || d->flags & passiveSocket)
+ return -2;
+ if (sockfd == -1)
+ return -2;
+
+ if (len == 0)
+ return 0; // what's to write?
+
+ int retval;
+
+ if ((d->flags & outputBufferedSocket) == 0)
+ {
+ // socket not buffered. Just call write
+ retval = KSocks::self()->write(sockfd, data, len);
+ if (retval == -1)
+ setError(IO_WriteError, errno);
+ else
+ emit bytesWritten(retval);
+ }
+ else
+ {
+ // socket is buffered. Feed the write buffer
+
+ // LOCK BUFFER MUTEX
+
+ register unsigned wsize = writeBufferSize();
+ if (d->outMaxSize == (int)wsize) // (int) to get rid of annoying warning
+ {
+ // buffer is full!
+ setError(IO_WriteError, EWOULDBLOCK);
+ retval = -1;
+ }
+ else
+ {
+ if (d->outMaxSize != -1 && wsize + len > (unsigned)d->outMaxSize)
+ // we cannot write all data. Write just as much as to fill the buffer
+ len = d->outMaxSize - wsize;
+
+ // len > 0 here
+ retval = feedWriteBuffer(len, data);
+ if (wsize == 0 || d->emitWrite)
+ // buffer was empty, which means that the notifier is probably disabled
+ d->qsnOut->setEnabled(true);
+ }
+
+ // UNLOCK BUFFER MUTEX
+ }
+
+ return retval;
+}
+
+int KExtendedSocket::peekBlock(char *data, uint maxlen)
+{
+ if (d->status < connected || d->flags & passiveSocket)
+ return -2;
+ if (sockfd == -1)
+ return -2;
+
+ // need to LOCK MUTEX around this call...
+
+ if (d->flags & inputBufferedSocket)
+ return consumeReadBuffer(maxlen, data, false);
+
+ return 0;
+}
+
+int KExtendedSocket::unreadBlock(const char *, uint)
+{
+ // Always return -1, indicating this is not supported
+ setError(IO_ReadError, ENOSYS);
+ return -1;
+}
+
+#ifdef USE_QT3
+int KExtendedSocket::bytesAvailable() const
+#endif // USE_QT3
+#ifdef USE_QT4
+qint64 KExtendedSocket::bytesAvailable() const
+#endif // USE_QT4
+{
+ if (d->status < connected || d->flags & passiveSocket)
+ return -2;
+
+ // as of now, we don't do any extra processing
+ // we only work in input-buffered sockets
+ if (d->flags & inputBufferedSocket)
+ return KBufferedIO::bytesAvailable();
+
+ return 0; // TODO: FIONREAD ioctl
+}
+
+int KExtendedSocket::waitForMore(int msecs)
+{
+ cleanError();
+ if (d->flags & passiveSocket || d->status < connected || d->status >= closing)
+ return -2;
+ if (sockfd == -1)
+ return -2;
+
+ fd_set rd;
+ FD_ZERO(&rd);
+ FD_SET(sockfd, &rd);
+ timeval tv;
+ tv.tv_sec = msecs / 1000;
+ tv.tv_usec = (msecs % 1000) * 1000;
+
+ int retval = KSocks::self()->select(sockfd + 1, &rd, NULL, NULL, &tv);
+ if (retval == -1)
+ {
+ setError(IO_FatalError, errno);
+ return -1;
+ }
+ else if (retval != 0)
+ socketActivityRead(); // do read processing
+
+ return bytesAvailable();
+}
+
+int KExtendedSocket::getch()
+{
+ unsigned char c;
+ int retval;
+ retval = tqreadBlock((char*)&c, sizeof(c));
+
+ if (retval < 0)
+ return retval;
+ return c;
+}
+
+int KExtendedSocket::putch(int ch)
+{
+ unsigned char c = (char)ch;
+ return tqwriteBlock((char*)&c, sizeof(c));
+}
+
+// sets the emission of the readyRead signal
+void KExtendedSocket::enableRead(bool enable)
+{
+ // check if we can disable the socket notifier
+ // saves us a few cycles
+ // this is so because in buffering mode, we rely on these signals
+ // being emitted to do our I/O. We couldn't disable them here
+ if (!enable && (d->flags & inputBufferedSocket) == 0 && d->qsnIn)
+ d->qsnIn->setEnabled(false);
+ else if (enable && d->qsnIn)
+ // we can enable it always
+ d->qsnIn->setEnabled(true);
+ d->emitRead = enable;
+}
+
+// sets the emission of the readyWrite signal
+void KExtendedSocket::enableWrite(bool enable)
+{
+ // same thing as above
+ if (!enable && (d->flags & outputBufferedSocket) == 0 && d->qsnOut)
+ d->qsnOut->setEnabled(false);
+ else if (enable && d->qsnOut)
+ // we can enable it always
+ d->qsnOut->setEnabled(true);
+ d->emitWrite = enable;
+}
+
+// protected slot
+// this is connected to d->qsnIn::activated(int)
+void KExtendedSocket::socketActivityRead()
+{
+ if (d->flags & passiveSocket)
+ {
+ emit readyAccept();
+ return;
+ }
+ if (d->status == connecting)
+ {
+ connectionEvent();
+ return;
+ }
+ if (d->status != connected)
+ return;
+
+ // do we need to do I/O here?
+ if (d->flags & inputBufferedSocket)
+ {
+ // aye. Do read from the socket and feed our buffer
+ TQByteArray a;
+ char buf[1024];
+ int len, totalread = 0;
+
+ // LOCK MUTEX
+
+ unsigned cursize = readBufferSize();
+
+ if (d->inMaxSize == -1 || cursize < (unsigned)d->inMaxSize)
+ {
+ do
+ {
+ // check that we can read that many bytes
+ if (d->inMaxSize != -1 && d->inMaxSize - (cursize + totalread) < sizeof(buf))
+ // no, that would overrun the buffer
+ // note that this will also make us exit the loop
+ len = d->inMaxSize - (cursize + totalread);
+ else
+ len = sizeof(buf);
+
+ len = KSocks::self()->read(sockfd, buf, len);
+ if (len > 0)
+ {
+ // normal read operation
+ a.resize(a.size() + len);
+ memcpy(a.data() + totalread, buf, len);
+ totalread += len; // totalread == a.size() now
+ }
+ else if (len == 0)
+ {
+ // EOF condition here
+ ::close(sockfd);
+ sockfd = -1; // we're closed
+ d->qsnIn->deleteLater();
+ delete d->qsnOut;
+ d->qsnIn = d->qsnOut = NULL;
+ d->status = done;
+ emit closed(involuntary |
+ (readBufferSize() ? availRead : 0) |
+ (writeBufferSize() ? dirtyWrite : 0));
+ return;
+ }
+ else
+ {
+ // error!
+ setError(IO_ReadError, errno);
+ return;
+ }
+ // will loop only for normal read operations
+ }
+ while (len == sizeof(buf));
+
+ feedReadBuffer(a.size(), a.data());
+ }
+
+ // UNLOCK MUTEX
+ }
+ else
+ {
+ // No input buffering, but the notifier fired
+ // That means that either there is data to be read or that the
+ // socket closed.
+
+ // try to read one byte. If we can't, then the socket got closed
+
+ char c;
+ int len = KSocks::self()->recv(sockfd, &c, sizeof(c), MSG_PEEK);
+ if (len == 0)
+ {
+ // yes, it's an EOF condition
+ d->qsnIn->setEnabled(false);
+ ::close(sockfd);
+ sockfd = -1;
+ d->status = done;
+ emit closed(involuntary);
+ return;
+ }
+ }
+
+ if (d->emitRead)
+ emit readyRead();
+}
+
+void KExtendedSocket::socketActivityWrite()
+{
+ if (d->flags & passiveSocket)
+ return;
+ if (d->status == connecting)
+ {
+ connectionEvent();
+ return;
+ }
+ if (d->status != connected && d->status != closing)
+ return;
+
+ flush();
+
+ bool empty = writeBufferSize() == 0;
+
+ if (d->emitWrite && empty)
+ emit readyWrite();
+ else if (!d->emitWrite)
+ {
+ // check if we can disable the notifier
+ d->qsnOut->setEnabled(!empty); // leave it enabled only if we have more data to send
+ }
+ if (d->status == closing && empty)
+ {
+ // done sending the missing data!
+ d->status = done;
+
+ delete d->qsnOut;
+ ::close(sockfd);
+
+ d->qsnOut = NULL;
+ sockfd = -1;
+ emit closed(delayed | (readBufferSize() ? availRead : 0));
+ }
+}
+
+// this function is called whenever we have a "connection event"
+// that is, whenever our asynchronously connecting socket throws
+// an event
+void KExtendedSocket::connectionEvent()
+{
+ if (d->status != connecting)
+ return; // move along. There's nothing to see here
+
+ KResolverResults remote = d->resRemote.results();
+ if (remote.count() == 0)
+ {
+ // We have a problem! Abort?
+ kdError(170) << "KExtendedSocket::connectionEvent() called but no data available!\n";
+ return;
+ }
+
+ int errcode = 0;
+
+ if (sockfd != -1)
+ {
+ // our socket has activity
+ // find out what it was
+ int retval;
+ socklen_t len = sizeof(errcode);
+ retval = getsockopt(sockfd, SOL_SOCKET, SO_ERROR, (char*)&errcode, &len);
+
+ if (retval == -1 || errcode != 0)
+ {
+ // socket activity and there was error?
+ // that means the socket probably did not connect
+ if (d->qsnIn)
+ delete d->qsnIn;
+ if (d->qsnOut)
+ delete d->qsnOut;
+ ::close(sockfd);
+
+ sockfd = -1;
+ d->qsnIn = d->qsnOut = NULL;
+ d->current++;
+ setError(IO_ConnectError, errcode);
+ }
+ else
+ {
+ // hmm, socket activity and there was no error?
+ // that means it connected
+ // YAY!
+ cleanError();
+ d->status = connected;
+ setBlockingMode(true);
+ setFlags(IO_Sequential | IO_Raw | IO_ReadWrite | IO_Open | IO_Async);
+ setBufferSize(d->flags & inputBufferedSocket ? -1 : 0,
+ d->flags & outputBufferedSocket ? -1 : 0);
+ emit connectionSuccess();
+ return;
+ }
+ }
+
+ // ok, we have to try something here
+ // and sockfd == -1
+ KResolverResults local = d->resLocal.results();
+ unsigned localidx = 0;
+ for ( ; d->current < remote.count(); d->current++)
+ {
+ // same code as in connect()
+ if (local.count() != 0)
+ {
+ // scan bindres for a local resuls family
+ for (localidx = 0; localidx < local.count(); localidx++)
+ if (remote[d->current].family() == local[localidx].family())
+ break;
+
+ if (remote[d->current].family() != local[localidx].family())
+ {
+ // no matching families for this
+ continue;
+ }
+
+ errno = 0;
+ sockfd = ::socket(remote[d->current].family(), remote[d->current].socketType(),
+ remote[d->current].protocol());
+ setError(IO_ConnectError, errno);
+ errcode = errno;
+ if (sockfd == -1)
+ continue; // cannot create this socket
+ fcntl(sockfd, F_SETFD, FD_CLOEXEC);
+ if (d->addressReusable)
+ setAddressReusable(sockfd, true);
+ setIPv6Only(d->ipv6only);
+ cleanError();
+ if (KSocks::self()->bind(sockfd, local[localidx].address(),
+ local[localidx].length()) == -1)
+ {
+ ::close(sockfd);
+ sockfd = -1;
+ continue;
+ }
+ }
+ else
+ {
+ // no need to bind, just create
+ sockfd = ::socket(remote[d->current].family(), remote[d->current].socketType(),
+ remote[d->current].protocol());
+ if (sockfd == -1)
+ {
+ setError(IO_ConnectError, errno);
+ errcode = errno;
+ continue;
+ }
+ fcntl(sockfd, F_SETFD, FD_CLOEXEC);
+ if (d->addressReusable)
+ setAddressReusable(sockfd, true);
+ setIPv6Only(d->ipv6only);
+ cleanError();
+ }
+
+ if (KSocks::self()->hasWorkingAsyncConnect())
+ setBlockingMode(false);
+ if (KSocks::self()->connect(sockfd, remote[d->current].address(),
+ remote[d->current].length()) == -1)
+ {
+ if (errno != EWOULDBLOCK && errno != EINPROGRESS)
+ {
+ setError(IO_ConnectError, errno);
+ ::close(sockfd);
+ sockfd = -1;
+ errcode = errno;
+ continue;
+ }
+
+ // error here is either EWOULDBLOCK or EINPROGRESS
+ // so, it is a good condition
+ d->qsnIn = new TQSocketNotifier(sockfd, TQSocketNotifier::Read);
+ TQObject::connect(d->qsnIn, TQT_SIGNAL(activated(int)), this, TQT_SLOT(socketActivityRead()));
+ d->qsnOut = new TQSocketNotifier(sockfd, TQSocketNotifier::Write);
+ TQObject::connect(d->qsnOut, TQT_SIGNAL(activated(int)), this, TQT_SLOT(socketActivityWrite()));
+
+ // ok, let the Qt event loop do the selecting for us
+ return;
+ }
+
+ // eh, what?
+ // the non-blocking socket returned valid connection?
+ // already?
+ // I suppose that could happen...
+ cleanError();
+ d->status = connected;
+ setBlockingMode(true);
+ setFlags(IO_Sequential | IO_Raw | IO_ReadWrite | IO_Open | IO_Async);
+ setBufferSize(d->flags & inputBufferedSocket ? -1 : 0,
+ d->flags & outputBufferedSocket ? -1 : 0);
+ emit connectionSuccess();
+ return;
+ }
+
+ // if we got here, it means that there are no more options to connect
+ d->status = lookupDone; // go back
+ emit connectionFailed(errcode);
+}
+
+void KExtendedSocket::dnsResultsReady()
+{
+ // check that this function was called in a valid state
+ if (d->status != lookupInProgress)
+ return;
+
+ // valid state. Are results fully ready?
+ if (d->resRemote.isRunning() || d->resLocal.isRunning())
+ // no, still waiting for answer in one of the lookups
+ return;
+
+ // ok, we have all results
+ // count how many results we have
+ int n = d->resRemote.results().count() + d->resLocal.results().count();
+
+ if (n)
+ {
+ d->status = lookupDone;
+ cleanError();
+ }
+ else
+ {
+ d->status = nothing;
+ setError(IO_LookupError, KResolver::NoName);
+ }
+
+ emit lookupFinished(n);
+
+ return;
+}
+
+void KExtendedSocket::startAsyncConnectSlot()
+{
+ TQObject::disconnect(this, TQT_SIGNAL(lookupFinished(int)), this, TQT_SLOT(startAsyncConnectSlot()));
+
+ if (d->status == lookupDone)
+ startAsyncConnect();
+}
+
+int KExtendedSocket::resolve(sockaddr *sock, ksocklen_t len, TQString &host,
+ TQString &port, int flags)
+{
+ kdDebug(170) << "Deprecated function called:" << k_funcinfo << endl;
+
+ int err;
+ char h[NI_MAXHOST], s[NI_MAXSERV];
+
+ h[0] = s[0] = '\0';
+
+ err = getnameinfo(sock, len, h, sizeof(h) - 1, s, sizeof(s) - 1, flags);
+ host = TQString::fromUtf8(h);
+ port = TQString::fromUtf8(s);
+
+ return err;
+}
+
+int KExtendedSocket::resolve(::KSocketAddress *sock, TQString &host, TQString &port,
+ int flags)
+{
+ return resolve(sock->data, sock->datasize, host, port, flags);
+}
+
+TQPtrList<KAddressInfo> KExtendedSocket::lookup(const TQString& host, const TQString& port,
+ int userflags, int *error)
+{
+ kdDebug(170) << "Deprecated function called:" << k_funcinfo << endl;
+
+ int socktype, familyMask, flags;
+ unsigned i;
+ TQPtrList<KAddressInfo> l;
+
+ /* check socket type flags */
+ if (!process_flags(userflags, socktype, familyMask, flags))
+ return l;
+
+// kdDebug(170) << "Performing lookup on " << host << "|" << port << endl;
+ KResolverResults res = KResolver::resolve(host, port, flags, familyMask);
+ if (res.error())
+ {
+ if (error)
+ *error = res.error();
+ return l;
+ }
+
+ for (i = 0; i < res.count(); i++)
+ {
+ KAddressInfo *ai = new KAddressInfo();
+
+ // I should have known that using addrinfo was going to come
+ // and bite me back some day...
+ ai->ai = (addrinfo *) malloc(sizeof(addrinfo));
+ memset(ai->ai, 0, sizeof(addrinfo));
+
+ ai->ai->ai_family = res[i].family();
+ ai->ai->ai_socktype = res[i].socketType();
+ ai->ai->ai_protocol = res[i].protocol();
+ TQString canon = res[i].canonicalName();
+ if (!canon.isEmpty())
+ {
+ ai->ai->ai_canonname = (char *) malloc(canon.length()+1);
+ strcpy(ai->ai->ai_canonname, canon.ascii()); // ASCII here is intentional
+ }
+ if ((ai->ai->ai_addrlen = res[i].length()))
+ {
+ ai->ai->ai_addr = (struct sockaddr *) malloc(res[i].length());
+ memcpy(ai->ai->ai_addr, res[i].address().address(), res[i].length());
+ }
+ else
+ {
+ ai->ai->ai_addr = 0;
+ }
+
+ ai->addr = ::KSocketAddress::newAddress(ai->ai->ai_addr, ai->ai->ai_addrlen);
+
+ l.append(ai);
+ }
+
+ if ( error )
+ *error = 0; // all is fine!
+
+ return l;
+}
+
+::KSocketAddress *KExtendedSocket::localAddress(int fd)
+{
+ ::KSocketAddress *local;
+ struct sockaddr static_sa, *sa = &static_sa;
+ ksocklen_t len = sizeof(static_sa);
+
+ /* find out the socket length, in advance
+ * we use a sockaddr allocated on the heap just not to pass down
+ * a NULL pointer to the first call. Some systems are reported to
+ * set len to 0 if we pass NULL as the sockaddr */
+ if (KSocks::self()->getsockname(fd, sa, &len) == -1)
+ return NULL; // error!
+
+ /* was it enough? */
+ if (len > sizeof(static_sa)
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+ || sa->sa_len > sizeof(static_sa)
+#endif
+ )
+ {
+ /* nope, malloc a new socket with the proper size */
+
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+ if (sa->sa_len != len)
+ len = sa->sa_len;
+#endif
+
+ sa = (sockaddr*)malloc(len);
+ if (sa == NULL)
+ return NULL; // out of memory
+
+ if (KSocks::self()->getsockname(fd, sa, &len) == -1)
+ {
+ free(sa);
+ return NULL;
+ }
+
+ local = ::KSocketAddress::newAddress(sa, len);
+ free(sa);
+ }
+ else
+ local = ::KSocketAddress::newAddress(sa, len);
+
+ return local;
+}
+
+/* This is exactly the same code as localAddress, except
+ * we call getpeername here */
+::KSocketAddress *KExtendedSocket::peerAddress(int fd)
+{
+ ::KSocketAddress *peer;
+ struct sockaddr static_sa, *sa = &static_sa;
+ ksocklen_t len = sizeof(static_sa);
+
+ /* find out the socket length, in advance
+ * we use a sockaddr allocated on the heap just not to pass down
+ * a NULL pointer to the first call. Some systems are reported to
+ * set len to 0 if we pass NULL as the sockaddr */
+ if (KSocks::self()->getpeername(fd, sa, &len) == -1)
+ return NULL; // error!
+
+ /* was it enough? */
+ if (len > sizeof(static_sa)
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+ || sa->sa_len > sizeof(static_sa)
+#endif
+ )
+ {
+ /* nope, malloc a new socket with the proper size */
+
+#ifdef HAVE_STRUCT_SOCKADDR_SA_LEN
+ if (sa->sa_len != len)
+ len = sa->sa_len;
+#endif
+
+ sa = (sockaddr*)malloc(len);
+ if (sa == NULL)
+ return NULL; // out of memory
+
+ if (KSocks::self()->getpeername(fd, sa, &len) == -1)
+ {
+ free(sa);
+ return NULL;
+ }
+
+ peer = ::KSocketAddress::newAddress(sa, len);
+ free(sa);
+ }
+ else
+ peer = ::KSocketAddress::newAddress(sa, len);
+
+ return peer;
+}
+
+TQString KExtendedSocket::strError(int code, int syserr)
+{
+ const char * msg;
+ if (code == IO_LookupError)
+ msg = gai_strerror(syserr);
+ else
+ msg = strerror(syserr);
+
+ return TQString::fromLocal8Bit(msg);
+}
+
+
+TQSocketNotifier *KExtendedSocket::readNotifier() { return d->qsnIn; }
+TQSocketNotifier *KExtendedSocket::writeNotifier() { return d->qsnOut; }
+
+/*
+ * class KAddressInfo
+ */
+
+#if 0
+KAddressInfo::KAddressInfo(addrinfo *p)
+{
+ ai = (addrinfo *) malloc(sizeof(addrinfo));
+ memcpy(ai, p, sizeof(addrinfo));
+ ai->ai_next = NULL;
+ if (p->ai_canonname)
+ {
+ ai->ai_canonname = (char *) malloc(strlen(p->ai_canonname)+1);
+ strcpy(ai->ai_canonname, p->ai_canonname);
+ }
+ if (p->ai_addr && p->ai_addrlen)
+ {
+ ai->ai_addr = (struct sockaddr *) malloc(p->ai_addrlen);
+ memcpy(ai->ai_addr, p->ai_addr, p->ai_addrlen);
+ }
+ else
+ {
+ ai->ai_addr = 0;
+ ai->ai_addrlen = 0;
+ }
+
+ addr = ::KSocketAddress::newAddress(ai->ai_addr, ai->ai_addrlen);
+}
+#endif
+KAddressInfo::~KAddressInfo()
+{
+ if (ai && ai->ai_canonname)
+ free(ai->ai_canonname);
+
+ if (ai && ai->ai_addr)
+ free(ai->ai_addr);
+
+ if (ai)
+ free(ai);
+ delete addr;
+}
+
+int KAddressInfo::flags() const
+{
+ return ai->ai_flags;
+}
+
+int KAddressInfo::family() const
+{
+ return ai->ai_family;
+}
+
+int KAddressInfo::socktype() const
+{
+ return ai->ai_socktype;
+}
+
+int KAddressInfo::protocol() const
+{
+ return ai->ai_protocol;
+}
+
+const char* KAddressInfo::canonname() const
+{
+ return ai->ai_canonname;
+}
+
+void KExtendedSocket::virtual_hook( int id, void* data )
+{ KBufferedIO::virtual_hook( id, data ); }
+
+#include "kextsock.moc"
generated by cgit v1.2.1 (git 2.18.0) at 2024-05-31 23:29:29 +0000