Reading binary data

[vermarajeev]

Hi guys,
Please help me to read the attached binary file "exactly" to some other file.
The copied file has to be same.
Here is the code that I use. But the copied file is modified.

QString message;
QFile f ( "m1_enc.ct" );
if ( f.open (IO_ReadOnly) )
{
	// file opened successfully
	QDataStream t ( &f );
	// read the contents of the file into message
	char* m = new char[f.size() +1];
	t.readRawBytes ( m, f.size() );
	message = m;
	f.close();
}

QString message;
QFile f ( "m1_enc.ct" );
if ( f.open (IO_ReadOnly) )
{
	// file opened successfully
	QDataStream t ( &f );
	// read the contents of the file into message
	char* m = new char[f.size() +1];
	t.readRawBytes ( m, f.size() );
	message = m;
	f.close();
}

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QFile f ( "copied_file_enc.ct" );
	if ( f.open (IO_WriteOnly) )
		{
		// file opened successfully
		QDataStream t ( &f );
		// read the contents of the file into message
		t << message;
		}
	f.close();

QFile f ( "copied_file_enc.ct" );
	if ( f.open (IO_WriteOnly) )
		{
		// file opened successfully
		QDataStream t ( &f );
		// read the contents of the file into message
		t << message;
		}
	f.close();

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In my case the copied_file_enc.ct is modified.

[wysota]

QFile f("input");
f.open(QFile::ReadOnly);
 
QFile f2("ouptut");
f2.open(QFile::WriteOnly|QFile::Truncate);
 
QByteArray dat = f.readAll();
f2.write(dat);
f.close();
f2.close();

QFile f("input");
f.open(QFile::ReadOnly);

QFile f2("ouptut");
f2.open(QFile::WriteOnly|QFile::Truncate);

QByteArray dat = f.readAll();
f2.write(dat);
f.close();
f2.close();

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