Description:
------------
The function php_mmc_store doesn't check for required parameters, just segfaults.

In fact, parameter checking isn't done on some other functions too.

PS: I can't select PHP 5.2.6 which I'm using, so that's why I selected 5.2.5.

Fix:
poison@netlog:/usr/src$ diff -ruN memcache-3.0.1-orig/memcache.c  memcache-3.0.1/memcache.c 
--- memcache-3.0.1-orig/memcache.c      2008-02-05 21:00:12.000000000 +0100
+++ memcache-3.0.1/memcache.c   2008-06-17 02:26:49.000000000 +0200
@@ -380,11 +380,13 @@
        long flags = 0, exptime = 0, cas = 0;
 
        if (mmc_object == NULL) {
+               if(ZEND_NUM_ARGS() < 3) WRONG_PARAM_COUNT;
                if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Oz|zlll", &mmc_object, memcache_pool_ce, &keys, &value, &flags, &exptime, &cas) == FAILURE) {
                        return;
                }
        }
        else {
+               if(ZEND_NUM_ARGS() < 2) WRONG_PARAM_COUNT;
                if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|zlll", &keys, &value, &flags, &exptime, &cas) == FAILURE) {
                        return;
                }


Reproduce code:
---------------
<?php

        $mc = new Memcache ();
        if ($mc->addServer ('netlog', 11211, TRUE, 1, 1, 1, TRUE, '__errorCallback') === FALSE)
        {
                die ("Unable to connect\n");
        }

        $mc->set ('key');

        function __errorCallback ($host, $tcpPort, $udpPort, $error, $errno)
        {
                die ("Memcache error '$host' '$tcpPort' '$udpPort' '$error' '$errno'\n");
        }

?>


Expected result:
----------------
Warning: Wrong parameter count for MemcachePool::set() in /home/jakob/src/testmc2.php on line 9


Actual result:
--------------
Segmentation fault