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  1. Qt
  2. QTBUG-20372

QFile crashes on close(), when its FILE* handle is already closed

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Invalid
    • Affects Version/s: 4.6.3
    • Fix Version/s: None
    • Labels:
      None
    • Environment:
      Debian Linux (Squeeze)

      Description

      It could be a good idea, to check if the FILE pointer is valid with fileno().

      	// Open file handle
      	FILE* pFile = fopen( "/tmp/hugo.txt", "w+");
      	if( !pFile )
      	{
      		printf( "Error while opening file!\n" );
      		return 7;
      	}
      	// Create QFile from file handle
      	QSharedPointer<QFile> pSharedPointer(new QFile());
      	pSharedPointer->open( pFile, QIODevice::WriteOnly );
      
      	// close file handle
      	fclose( pFile );
      
      	// try to allocate the memory, where FILE* pointer points to
      	DoSomethingWhichAllocatesMemory();
      
      	// close QFile
      	pSharedPointer->close();
      
      

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            Assignee:
            earthdomain Earth Domain (Inactive)
            Reporter:
            bluespirit Karl Krach
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              Dates

              Created:
              Updated:
              Resolved:

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