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Date: Mon, 3 Sep 2001 12:36:02 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: press for cygwin
Message-ID: <20010903123602.B2373@redhat.com>
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On Mon, Sep 03, 2001 at 06:30:19PM +0200, Andrew Markebo wrote:
>
>| I mentioned the magic number method.  That would actually work.  That is
>| why I suggested it.
>
>Just a thought, doesn't gzip and bzip2 have 'magic numbers' already?
>The first two bytes in the files is "BZ" or "GZ"? Hmm checked a
>bzip2-file, it has BZ in the beginning, couldn't see similar in
>gzip.. ahh well.. 

There is a program on UNIX called "file".  It is able to detect the
difference between bzip2 and gzip files just fine.

I am not advocating that we add our own magic numbers.  I do still want
to enable people who KNOW WHAT THEY ARE DOING to be able to uncompress
the files without resorting to setup.exe.  I am talking about using
an existing mechanism to detect the files.

cgf

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