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Bug #34501 PHP crashes when you use include for user defined stream wrapper
Submitted: 2005-09-14 20:37 UTC Modified: 2005-09-15 09:54 UTC
From: dmitry dot poltaryonok at gmail dot com Assigned:
Status: Not a bug Package: Reproducible crash
PHP Version: 5.0.5 OS: Windows XP SP2
Private report: No CVE-ID: None
View Developer Edit
 [2005-09-14 20:37 UTC] dmitry dot poltaryonok at gmail dot com 
Description:
------------
After you register custom wrapper PHP crashes during inclusion of the file using this wrapper.

Reproduce code:
---------------
<?
define('suAPI', 'mywrap://api.su/api/', true);
class mywrap
{
	function stream_open ( $path, $mode, $options, &$opened_path )
	{
		return true;
	}
	function stream_read ( $count )
	{
		return '<? echo \'test\';?>';
	}
}
stream_wrapper_register('mywrap', 'mywrap');
include(suAPI.'config/config.php');
?>

Expected result:
----------------
I expect to see "test" string echoed from included code. included code returned by stream_read()

Actual result:
--------------
Windows displays that CLI PHP application crashed (or that Apache is crashed).

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 [2005-09-14 20:48 UTC] dmitry dot poltaryonok at gmail dot com 
Crash is right after call to stream_open
 [2005-09-14 22:32 UTC] sniper@php.net 
Please try using this CVS snapshot:

  http://snaps.php.net/php5-latest.tar.gz
 
For Windows:
 
  http://snaps.php.net/win32/php5-win32-latest.zip

And fix your script. The wrapper class is incomplete.
 [2005-09-15 09:23 UTC] dmitry dot poltaryonok at gmail dot com 
My actual wrapper is complete (contains all functions)
 [2005-09-15 09:30 UTC] tony2001@php.net 
Then provide your actual reproduce code, not the one that doesn't work at all.
 [2005-09-15 09:31 UTC] sniper@php.net 
No it isn't. I get an error while running your script about not having implemented stream_eof(). Try the snapshot.
 [2005-09-15 09:45 UTC] dmitry dot poltaryonok at gmail dot com 
Ok with the latest versions of PHP 5 my actual wrapper works (not the fragment I posted)
 [2005-09-15 09:47 UTC] dmitry dot poltaryonok at gmail dot com 
Sorry for posting code which will get the error stream_eof is not implement or stream_stat is not implemented, because I wasn't able to see this errors because php just crashed.
 [2005-09-15 09:54 UTC] sniper@php.net 
And the crash was caused because this incomplete wrapper ends up in an endless loop, eats all memory and finally crashes.
It's not really PHP bug, just user error.
 
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