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Minizip can't open a zip-file created by OS X and bigger than 4 GB #5
Description
Hi!
I created 2 zip-files by OS X (via context menu -> Compress Files)
One is 6.25 GB and second is 3.78 GB.
Results:
- Unzipping 6.25 GB zip-file using OSX
- [!] Unzipping 6.25 GB zip-file using Minizip == ERROR
- [!] Unzipping 6.25 GB zip-file using standard Windows unzipper == ERROR
- [!] Unzipping 6.25 GB zip-file using 7-zip (Windows version) == SOME ERRORS. While unzipping, 7-zip says that some files have unsupported compression method.
- Unzipping 3.78 GB zip-file using OSX
- Unzipping 3.78 GB zip-file using Mizinip.
- Unzipping 3.78 GB zip-file using standard Windows unzipper
- Unzipping 3.78 GB zip-file using 7-zip (Windows version)
Error in unzip.c, started at #1060
if (unz64local_getLong(&s->z_filefunc, s->filestream, &uMagic) != UNZ_OK)
err = UNZ_ERRNO;
else if (uMagic!=LOCALHEADERMAGIC)
err = UNZ_BADZIPFILE;
Its got a wrong 'uMagic' in 'unz64local_getLong' that is not the same as 'LOCALHEADERMAGIC'.
So, looking that OSX is compressing zip-files (which are bigger than 4 GB) by own method that Windows and Minizip can't recognize?
Activity
nmoinvaz commentedon Jun 25, 2013
Can you make one of these files available somewhere?
nmoinvaz commentedon Jun 25, 2013
http://www.springyarchiver.com/blog/topic/topic/203
mrsergio commentedon Jun 25, 2013
I created a torrent-file: https://dl.dropboxusercontent.com/u/4466288/zip.zip.torrent
It's a 6.25 GB zip-file in it, which i used in my tests in 1st message.
nmoinvaz commentedon Jun 26, 2013
I verified that Apple does not respect ZIP64. At line 568 I added a hack that you can uncomment to get it to work with zip files that are greater than 4GB but don't support the ZIP64 standard.