Re: zip_entry_read buggy? runs endless on file with crc-error - freezes on corrupt file

On Dec 8, 2010, at 6:42 PM, Merlin Morgenstern wrote: > Hi there, > > I am running a php file via cron where zip files will be extracted with the help of > zip_entry_read. This worked great until I had a corrupted zip file to extract. This braught the > server down as the php script never ended. The function max_execution_time does not help as it zip > is a system function so the php script did run endless until the cron job trigered the next > execution a minute later and so on! > > It seams that the zip_entry_read function is buggy. I found 2 people with the similar problem, > but no solution: > > http://www.mombu.com/php/functions-forum/t-zip-freezes-how-to-handle-corrupt-crc-in-zip-file-3565173.html > > http://coding.derkeiler.com/Archive/PHP/php.general/2007-08/msg00924.html > > When I do a unzip on the console I do get following error from zip: > unzip 25_459.zip > Archive: 25_459.zip > error [25_459.zip]: missing 2203 bytes in zipfile > (attempting to process anyway) > retry - request = 0x4294965093 > error [25_459.zip]: attempt to seek before beginning of zipfile > (please check that you have transferred or created the zipfile in the > appropriate BINARY mode and that you have compiled UnZip properly) > (attempting to re-compensate) > inflating: 459-03.jpg bad CRC b29a30c7 (should be 5a63b1bc) > file #2: bad zipfile offset (local header sig): 94422 > (attempting to re-compensate) > file #2: bad zipfile offset (local header sig): 94422 > file #3: bad zipfile offset (local header sig): 179720 > file #4: bad zipfile offset (local header sig): 268127 > file #5: bad zipfile offset (local header sig): 358277 > file #6: bad zipfile offset (local header sig): 442834 > file #7: bad zipfile offset (local header sig): 524802 > file #8: bad zipfile offset (local header sig): 615587 > > How can i make zip_entry_read exit on error to solve the problem? Merlin, If everything works fine from the command line why not just use the command line using exec()? That's what I do. Tom