Description:
------------
I tried to use ldap_exop_passwd with password policy (see my code in test script)

With this code, the $ldap resource is not updated, so error_code is still the previous one. There is no issue if not ctrls reference is passed at latest argument.



Test script:
---------------
            $ctrls = array();
            $exop_passwd = ldap_exop_passwd($ldap, $dn, $oldpassword, $password, $ctrls);
            $error_code = ldap_errno($ldap);
            $error_msg = ldap_error($ldap);
            error_log("TEST $error_code / $error_msg / $exop_passwd");
            if (!$exop_passwd) {
                if (isset($ctrls[LDAP_CONTROL_PASSWORDPOLICYRESPONSE])) {
                    $value = $ctrls[LDAP_CONTROL_PASSWORDPOLICYRESPONSE]['value'];
                    if (isset($value['error'])) {
                        $ppolicy_error_code = $value['error'];
                        error_log("LDAP - Ppolicy error code: $ppolicy_error_code");
                    }
                }
            }

Expected result:
----------------
We should have in $error_code the value "19" when password is refused by LDAP directory when it is too short

Actual result:
--------------
Here is the current log:

[Tue Mar 02 23:47:30.736095 2021] [php7:warn] [pid 14066] [client 127.0.0.1:48158] PHP Warning:  ldap_exop_passwd(): Passwd modify extended operation failed: Password fails quality checking policy (19) in /usr/local/ssp/lib/functions.inc.php on line 457, referer: http://ssp.example.com/index.php?action=change
[Tue Mar 02 23:47:30.736195 2021] [php7:notice] [pid 14066] [client 127.0.0.1:48158] TEST 0 / Success / , referer: http://ssp.example.com/index.php?action=change
[Tue Mar 02 23:47:30.736228 2021] [php7:notice] [pid 14066] [client 127.0.0.1:48158] LDAP - Ppolicy error code: 6, referer: http://ssp.example.com/index.php?action=change