C / C++ / MFC

  nRead = pSocket->Receive( byBuffer + nPos, sizeof( FileHeader ) - nPos );
  nPos += nRead;    
</code>

typedef struct
{
   char szFileName[_MAX_PATH];
} FILE_HEADER, *LPFILE_HEADER;

send_code()
{
   ... Get the file name
   #define BUFFER_SIZE  4096
   long nRead = 0;
   BYTE byBuffer[BUFFER_SIZE];   // Only build this once
   FILE_HEADER FileHeader;

   strcpy( FileHeader.szFileName, myFile.GetFileName() );

   // Send the header struct
   cSocket->Send( dynamic_cast< LPVOID >( &FileHeader ), sizeof( FileHeader ));

   do
   {
      nRead = myFile.Read( byBuffer, BUFFER_SIZE );
      cSocket->Send( byBuffer, nRead );
   } while( nRead > 0 );

   ... clean up
}

receive_code()
{
    long nRead = 0;
    long nPos = 0;
    BYTE byBuffer[BUFFER_SIZE];
    FILE_HEADER FileHeader;

    // Get the header struct
    do
    {
         nRead = pSocket->Receive( byBuffer + nPos, sizeof( FileHeader ) - nPos );
         nPos += nRead;
    } while( (nPos < sizeof( FileHeader )) && (nRead > 0) );

    // Make sure we got at least the FileHeader
    if( nPos != sizeof( FileHeader ) )
    {
        // Abort... data is incomplete
        return;
    }

    ... create file with FileHeader.szFileName

    do
    {
         nRead = pSocket->Receive( byBuffer, BUFFER_SIZE );
         destFile.write( byBuffer, nRead );
    } while( nRead > 0 );
}

</code>

<br />
CSocket cSocket;<br />
cSocket.Create();<br />
cSocket.Connect((LPCTSTR(m_strServerIP)),m_iFtPort);<br />
<br />
CSocketFile sf(&cSocket);<br />
CArchive ar(&sf, CArchive::store);<br />
<br />
/*code for CFileDialog goes here*/<br />
//if IDOK<br />
   strPath = m_ldFile.GetPathName();<br />
   CFile myFile(strPath,<br />
     CFile::modeRead | CFile::typeBinary);		<br />
   <br />
   //get file info <br />
   DWORD length = myFile.GetLength();<br />
   char *data = new char[length];<br />
   myFile.Read(data, length);<br />
<br />
   //send it across<br />
   ar << myFile.GetFileName();<br />
   ar << length;<br />
   ar.Write(data, length);<br />
<br />
   delete[] data;<br />
   myFile.Close(); 	<br />

<br />
//after accepting the connection with pSocket<br />
   CSocketFile sf(pSocket);<br />
   CArchive ar(&sf, CArchive::load);<br />
<br />
   //create file...<br />
   CString filename;<br />
   ar >> filename;<br />
   CFile m_destFile(filename,<br />
       CFile::modeCreate | CFile::modeWrite | CFile::typeBinary);<br />
<br />
   DWORD length;<br />
   char *data;<br />
   <br />
   //get data<br />
   ar >> length;<br />
   data = new char[length];<br />
   ar.Read(data, length);<br />
<br />
   //wrap up<br />
   m_destFile.Write(data, length);<br />
   m_destFile.Flush();<br />
<br />
   delete[] data;<br />
   m_destFile.Close();<br />