[Delta] QCA unhandled exception at termination in windows

[Justin Karneges]

On Monday 03 March 2008 9:38 pm, Acenes wrote:
> > This should not happen.
> > Can you share the source code to QCATest.exe ?
> > -Justin
>
> The source code is completely in the tar archive of qca-2.0.0:
>
>   examples/md5crypt/md5crypt.cpp

Okay, I've figured it out.  md5crypt.cpp is wrong.  So much for setting a good 
example to follow. :)

Actually, this is a really obscure aspect of QCA to know about.  This code:

    QCA::Initializer init;
    QCA::SecureArray password, salt;
    QCoreApplication app ( argc, argv );

should be written like this instead:

    QCA::Initializer init;
    QCoreApplication app ( argc, argv );
    QCA::SecureArray password, salt;

QCA uses qAddPostRoutine() to deinitialize QCA.  This means that when 
QCoreApplication destructs, QCA is deinitialized (QCA::Initializer object 
destruction then becomes a no-op).  As you can see, the way md5crypt.cpp is 
written, those SecureArray will be deleted *after* QCA deinitializes.  Best 
fix is to do nothing between Initializer and QCoreApplication construction.

Sorry about that!

-Justin