Why i can't get the file.

[stylev]

//client.cpp
//..........................
connect(senderButton, SIGNAL(clicked()), this, SLOT(sendMessageSlot()));
void Send::sendMessageSlot()
{
 
                  QDataStream out(client);
                  QFileInfo info(file->fileName());
                  out << info.fileName() << currentSize;
 
                  while(!file->atEnd())
                  {        
                       char schar[2048];
                       if (currentSize >= 2048)
                       {
                            file->read(schar, 2048);
                            client->write(schar, 2048);
                            currentSize-=2048;
                       }
                       else if(currentSize < 2048)
                       {
                            file->read(schar, currentSize);
                            client->write(schar, currentSize);
                            break;
                       }
                  }
                  file->close();
}
------------------------------------------------------------------------------------
//server.cpp
//...........
connect(server, SIGNAL(readyRead()), this, SLOT(newMessageSlot()));
void Receive::newMessageSlot()
{
     if (boo_new)
     {
        QDataStream in(server);
        in >> name >> allSize;
        boo_new = false;
    }
 
    file = new QFile(QString("C:\\%1").arg(name), this);
    file->open(QIODevice::WriteOnly |QIODevice::Append);
 
 
    if (server->isReadable())
    {
            quint64 size = server->bytesAvailable();
            char buf[size];
            server->read(buf, size);
            file->write(buf, size);
            readSize += size;
 
    }
    file->close();
    delete file;
    if (readSize == allSize)
    { 
         QMessageBox::warning(this, "ok", QString::fromLocal8Bit("over")); 
         return;
    }
}

//client.cpp
//..........................
connect(senderButton, SIGNAL(clicked()), this, SLOT(sendMessageSlot()));
void Send::sendMessageSlot()
{

                  QDataStream out(client);
                  QFileInfo info(file->fileName());
                  out << info.fileName() << currentSize;
                  
                  while(!file->atEnd())
                  {        
                       char schar[2048];
                       if (currentSize >= 2048)
                       {
                            file->read(schar, 2048);
                            client->write(schar, 2048);
                            currentSize-=2048;
                       }
                       else if(currentSize < 2048)
                       {
                            file->read(schar, currentSize);
                            client->write(schar, currentSize);
                            break;
                       }
                  }
                  file->close();
}
------------------------------------------------------------------------------------
//server.cpp
//...........
connect(server, SIGNAL(readyRead()), this, SLOT(newMessageSlot()));
void Receive::newMessageSlot()
{
     if (boo_new)
     {
        QDataStream in(server);
        in >> name >> allSize;
        boo_new = false;
    }
    
    file = new QFile(QString("C:\\%1").arg(name), this);
    file->open(QIODevice::WriteOnly |QIODevice::Append);
    
                  
    if (server->isReadable())
    {
            quint64 size = server->bytesAvailable();
            char buf[size];
            server->read(buf, size);
            file->write(buf, size);
            readSize += size;
            
    }
    file->close();
    delete file;
    if (readSize == allSize)
    { 
         QMessageBox::warning(this, "ok", QString::fromLocal8Bit("over")); 
         return;
    }
}

To copy to clipboard, switch view to plain text mode 

----------------------------------------------------------
I am from in china, my English is very ppor, pardon me!
compile and run it.
i can get file in server from client send in local area network
buf i can't get file in server from client send in internet...

why ?
i did't understand English, please reply some correct codes...

thank very very much............

//if you want to make china friends, please add me
//janlex@msn.com