Re: [MacPerl] detecting corrupt resources

["Paul J. Schinder" <schinder@pobox.com>]

On Sun, 22 Nov 1998 16:12:43 -0700, Doug McNutt wrote:
>
>>Does anyone know how to prevent MacPerl from crashing when it opens the
>>resource fork of a corrupt file?
>
>The MacOS allows OpenRF() and OpenResFile(). The first simply opens the
>resource fork for reading without benefit of the resource manager. The
>second expects to find a resource map which probably has to be clean.
>
>I'm betting that OpenRF is supported somewhere in MacPerl, but then you'd
>have to scan the resource map manually. Probably a pain. You could look
for
>obvious things like size though. The only common use of OpenRF is for
>copying or compressing files.

Matthias has put this functionality into POSIX::open. By using the right
flag, you can open the resource rather than the data fork. Go to my Web
site, <http://pobox.com/~schinder/MacPerl.html> and pick up a copy of
Mac::Conversions to see it used, because I don't remember the exact
usage.



-------
Paul J. Schinder
schinder@pobox.com


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