kernel32: stop CopyFile from overwriting a file with itself

[Alexandre Julliard]

Damjan Jovanovic <damjan.jov at gmail.com> writes:

> +        if (h2 != INVALID_HANDLE_VALUE)
> +        {
> +            BY_HANDLE_FILE_INFORMATION info2;
> +            if (GetFileInformationByHandle( h2, &info2 ))
> +            {
> +                if (info.dwVolumeSerialNumber == info2.dwVolumeSerialNumber &&
> +                    info.nFileIndexLow == info2.nFileIndexLow &&
> +                    info.nFileIndexHigh == info2.nFileIndexHigh)

The volume serial number is not the appropriate check.

-- 
Alexandre Julliard
julliard at winehq.org