Message 72652 - Python tracker

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Author	pitrou
Recipients	pitrou
Date	2008-09-06.00:16:27
SpamBayes Score	0.017764503
Marked as misclassified	No
Message-id	<1220660191.68.0.82924423128.issue3790@psf.upfronthosting.co.za>
In-reply-to

Content
Currently (in py3k), the attributes "unused_data" and "unconsumed_tail" on zlib decompressor objects are bytearrays. This can wreak havoc in the read() method of ZipInfo objects, because one of those bytearrays is assigned to the internal "rawbuffer" and then extended using "+="... leading to wrong results (right now I can only reproduce it on a 3.5 GB zip file, sorry :-( ). Here is a patch.

Currently (in py3k), the attributes "unused_data" and "unconsumed_tail"
on zlib decompressor objects are bytearrays. This can wreak havoc in the
read() method of ZipInfo objects, because one of those bytearrays is
assigned to the internal "rawbuffer" and then extended using "+="...
leading to wrong results (right now I can only reproduce it on a 3.5 GB
zip file, sorry :-( ).

Here is a patch.

History
Date	User	Action	Args
2008-09-06 00:16:32	pitrou	set	recipients: + pitrou
2008-09-06 00:16:31	pitrou	set	messageid: <1220660191.68.0.82924423128.issue3790@psf.upfronthosting.co.za>
2008-09-06 00:16:30	pitrou	link	issue3790 messages
2008-09-06 00:16:29	pitrou	create