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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

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     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

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    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

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    16 ** GNU Lesser General Public License Usage

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    18 ** General Public License version 2.1 as published by the Free Software

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #include "qplatformdefs.h"

    43 #include "qwssocket_qws.h"

    44 

    45 #ifndef QT_NO_QWS_MULTIPROCESS

    46 

    47 #include <fcntl.h>

    48 #include <netdb.h>

    49 #include <errno.h>

    50 #include <stdio.h>

    51 #include <sys/file.h>

    52 #include <sys/time.h>

    53 #include <sys/un.h>

    54 

    55 #ifdef __MIPSEL__

    56 # ifndef SOCK_DGRAM

    57 #  define SOCK_DGRAM 1

    58 # endif

    59 # ifndef SOCK_STREAM

    60 #  define SOCK_STREAM 2

    61 # endif

    62 #endif

    63 

    64 #if defined(Q_OS_SOLARIS) || defined (QT_LINUXBASE)

    65 // uff-da apparently Solaris doesn't have the SUN_LEN macro, here is

    66 // an implementation of it...

    67 #  ifndef SUN_LEN

    68 #    define SUN_LEN(su) \

    69             sizeof(*(su)) - sizeof((su)->sun_path) + strlen((su)->sun_path)

    70 #  endif

    71 

    72 // nor the POSIX names of UNIX domain sockets *sigh*

    73 #  ifndef AF_LOCAL

    74 #    define AF_LOCAL        AF_UNIX

    75 #  endif

    76 #  ifndef PF_LOCAL

    77 #    define PF_LOCAL        PF_UNIX

    78 #  endif

    79 #endif // Q_OS_SOLARIS || QT_LINUXBASE

    80 

    81 QT_BEGIN_NAMESPACE

    82 

    83 /***********************************************************************

    84  *

    85  * QWSSocket

    86  *

    87  **********************************************************************/

    88 QWSSocket::QWSSocket(QObject *parent)

    89     : QWS_SOCK_BASE(parent)

    90 {

    91 #ifndef QT_NO_SXE

    92     QObject::connect( this, SIGNAL(stateChanged(SocketState)),

    93             this, SLOT(forwardStateChange(SocketState)));

    94 #endif

    95 }

    96 

    97 QWSSocket::~QWSSocket()

    98 {

    99 }

   100 

   101 #ifndef QT_NO_SXE

   102 QString QWSSocket::errorString()

   103 {

   104     switch (QUnixSocket::error()) {

   105     case NoError:

   106         return QString();

   107     case InvalidPath:

   108     case NonexistentPath:

   109         return QLatin1String("Bad path"); // NO_TR

   110     default:

   111         return QLatin1String("Bad socket"); // NO TR

   112     }

   113 }

   114 

   115 void QWSSocket::forwardStateChange(QUnixSocket::SocketState st  )

   116 {

   117     switch ( st )

   118     {

   119         case ConnectedState:

   120             emit connected();

   121             break;

   122         case ClosingState:

   123             break;

   124         case UnconnectedState:

   125             emit disconnected();

   126             break;

   127         default:

   128             // nothing

   129             break;

   130     }

   131     if ( QUnixSocket::error() != NoError )

   132         emit error((QAbstractSocket::SocketError)0);

   133 }

   134 #endif

   135 

   136 bool QWSSocket::connectToLocalFile(const QString &file)

   137 {

   138 #ifndef QT_NO_SXE

   139     bool result = QUnixSocket::connect( file.toLocal8Bit() );

   140     if ( !result )

   141     {

   142         perror( "QWSSocketAuth::connectToLocalFile could not connect:" );

   143         emit error(QAbstractSocket::ConnectionRefusedError);

   144         return false;

   145     }

   146     return true;

   147 #else

   148     // create socket

   149     int s = ::socket(PF_LOCAL, SOCK_STREAM, 0);

   150 

   151     // connect to socket

   152     struct sockaddr_un a;

   153     memset(&a, 0, sizeof(a));

   154     a.sun_family = PF_LOCAL;

   155     strncpy(a.sun_path, file.toLocal8Bit().constData(), sizeof(a.sun_path) - 1);

   156     int r = ::connect(s, (struct sockaddr*)&a, SUN_LEN(&a));

   157     if (r == 0) {

   158         setSocketDescriptor(s);

   159     } else {

   160         perror("QWSSocket::connectToLocalFile could not connect:");

   161         ::close(s);

   162         emit error(ConnectionRefusedError);

   163         return false;

   164     }

   165 #endif

   166     return true;

   167 }

   168 

   169 

   170 /***********************************************************************

   171  *

   172  * QWSServerSocket

   173  *

   174  **********************************************************************/

   175 QWSServerSocket::QWSServerSocket(const QString& file, QObject *parent)

   176 #ifndef QT_NO_SXE

   177     : QUnixSocketServer(parent)

   178 #else

   179     : QTcpServer(parent)

   180 #endif

   181 {

   182     init(file);

   183 }

   184 

   185 void QWSServerSocket::init(const QString &file)

   186 {

   187 #ifndef QT_NO_SXE

   188     QByteArray fn = file.toLocal8Bit();

   189     bool result = QUnixSocketServer::listen( fn );

   190     if ( !result )

   191     {

   192         QUnixSocketServer::ServerError err = serverError();

   193         switch ( err )

   194         {

   195             case InvalidPath:

   196                 qWarning("QWSServerSocket:: invalid path %s", qPrintable(file));

   197                 break;

   198             case ResourceError:

   199             case BindError:

   200             case ListenError:

   201                 qWarning("QWSServerSocket:: could not listen on path %s", qPrintable(file));

   202                 break;

   203             default:

   204                 break;

   205         }

   206     }

   207 #else

   208     int backlog = 16; //#####

   209 

   210 // create socket

   211     int s = ::socket(PF_LOCAL, SOCK_STREAM, 0);

   212     if (s == -1) {

   213         perror("QWSServerSocket::init");

   214         qWarning("QWSServerSocket: unable to create socket.");

   215         return;

   216     }

   217 

   218     QByteArray fn = file.toLocal8Bit();

   219     unlink(fn.constData()); // doesn't have to succeed

   220 

   221     // bind socket

   222     struct sockaddr_un a;

   223     memset(&a, 0, sizeof(a));

   224     a.sun_family = PF_LOCAL;

   225     strncpy(a.sun_path, fn.constData(), sizeof(a.sun_path) - 1);

   226     int r = ::bind(s, (struct sockaddr*)&a, SUN_LEN(&a));

   227     if (r < 0) {

   228         perror("QWSServerSocket::init");

   229         qWarning("QWSServerSocket: could not bind to file %s", fn.constData());

   230         ::close(s);

   231         return;

   232     }

   233 

   234     if (chmod(fn.constData(), 0600) < 0) {

   235         perror("QWSServerSocket::init");

   236         qWarning("Could not set permissions of %s", fn.constData());

   237         ::close(s);

   238         return;

   239     }

   240 

   241     // listen

   242     if (::listen(s, backlog) == 0) {

   243         if (!setSocketDescriptor(s))

   244             qWarning( "QWSServerSocket could not set descriptor %d : %s", s, errorString().toLatin1().constData());

   245     } else {

   246         perror("QWSServerSocket::init");

   247         qWarning("QWSServerSocket: could not listen to file %s", fn.constData());

   248         ::close(s);

   249     }

   250 #endif

   251 }

   252 

   253 QWSServerSocket::~QWSServerSocket()

   254 {

   255 }

   256 

   257 #ifndef QT_NO_SXE

   258 

   259 void QWSServerSocket::incomingConnection(int socketDescriptor)

   260 {

   261     inboundConnections.append( socketDescriptor );

   262     emit newConnection();

   263 }

   264 

   265 

   266 QWSSocket *QWSServerSocket::nextPendingConnection()

   267 {

   268     QMutexLocker locker( &ssmx );

   269     if ( inboundConnections.count() == 0 )

   270         return 0;

   271     QWSSocket *s = new QWSSocket();

   272     s->setSocketDescriptor( inboundConnections.takeFirst() );

   273     return s;

   274 }

   275 

   276 #endif // QT_NO_SXE

   277 

   278 QT_END_NAMESPACE

   279 

   280 #endif  //QT_NO_QWS_MULTIPROCESS