Description:
------------
Calling mcrypt_generic() without first calling mcrypt_generic_init() results in a crash on PHP 4.4.6 / Windows XP running the latest version of mcrypt from http://ftp.emini.dk/pub/php/win32/mcrypt/.  PHP 5 is unaffected.

Reproduce code:
---------------
<?php
$td = mcrypt_module_open(MCRYPT_DES, '', MCRYPT_MODE_ECB, '');
echo mcrypt_generic($td,'aaaaaaaa');
?>

Expected result:
----------------
There should be some sort of error.  Here's what PHP 5.2.1 says:

Warning: mcrypt_generic(): Operation disallowed prior to mcrypt_generic_init() in {filename} on line 3

Actual result:
--------------
It crashes.