#49072 [NEW]: feof never returns true for damaged file in zip

From: Date: Mon, 27 Jul 2009 11:47:14 +0000
Subject: #49072 [NEW]: feof never returns true for damaged file in zip
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-140328@lists.php.net to get a copy of this message 
From:             TorokAlpar at Gmail dot com
Operating system: Windows Xp, Linux
PHP version:      5.3.0
PHP Bug Type:     Zip Related
Bug description:  feof never returns true for damaged file in zip

Description:
------------
Opening a damaged zip archive (7z reports CRC failed for the faulty file),
feof never return true, the script blocks, causing high CPU usage. 

Please contact me to get a zip that produces this problem. I don't see how
can i attach it here

Reproduce code:
---------------
$o = new ZipArchive();
if (! $o->open('test.zip',ZipArchive::CHECKCONS)) {
	exit ('error can\'t open');
}
$o->getStream('file2'); // this file is ok
echo "OK";
$r = $o->getStream('file1'); // this file has a wrong crc
while (! feof($r)) {
	fread($r,1024);
}
echo "never here\n";


Expected result:
----------------
The script either reads the file ignoring the crc error, or reports the
error, but finishes.  

Actual result:
--------------
the script  never ends, and uses up the CPU

-- 
Edit bug report at http://bugs.php.net/?id=49072&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=49072&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=49072&r=trysnapshot53
Try a snapshot (PHP 6.0):            http://bugs.php.net/fix.php?id=49072&r=trysnapshot60
Fixed in SVN:                        http://bugs.php.net/fix.php?id=49072&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=49072&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=49072&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=49072&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=49072&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=49072&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=49072&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=49072&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=49072&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=49072&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=49072&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=49072&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=49072&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=49072&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=49072&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=49072&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=49072&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=49072&r=mysqlcfg

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