How to get maxpwdAge attribute value in ActiveDirectory using C++? - c++

Question

i am working with AD Server,i want to get the maxpwdAge attribute value...
i already try ADSi for that,but it gives an issue.
VARIANT var;
bsNamingContext=L"maxpwdAge";
hr = ADsGetObject(pszADsPath, IID_IADsUser, (void**) &pUser);
if(SUCCEEDED(hr))
{
VariantInit(&var);
hr = pUser->Get(bsNamingContext, &var);
}
but,it gives -2147463155 (8000500d) error...
but i am using bsNamingContext=L"cn";
it gives the CN values correctly...
anyone can resolve it?

Answer 1

maxpwdAge is not included in user/contact/person LDAP class, so you can not retrieve it that way.
You need to query it from domain object, not user object
Try this:
Const ONE_HUNDRED_NANOSECOND = .000000100 ' .000000100 is equal to 10^-7
Const SECONDS_IN_DAY = 86400
Set objDomain = GetObject("LDAP://DC=fabrikam,DC=com") ' LINE 4
Set objMaxPwdAge = objDomain.Get("maxPwdAge") ' LINE 5
If objMaxPwdAge.LowPart = 0 Then
WScript.Echo "The Maximum Password Age is set to 0 in the " & _
"domain. Therefore, the password does not expire."
WScript.Quit
Else
dblMaxPwdNano = Abs(objMaxPwdAge.HighPart * 2^32 + objMaxPwdAge.LowPart)
dblMaxPwdSecs = dblMaxPwdNano * ONE_HUNDRED_NANOSECOND ' LINE 13
dblMaxPwdDays = Int(dblMaxPwdSecs / SECONDS_IN_DAY) ' LINE 14
WScript.Echo "Maximum password age: " & dblMaxPwdDays & " days"
End If
UPDATE:
To convert large integer to human readable value use IADsLargeInteger dispatch interface
Note 1 : Example is in VB, but you can easily rewrite it, because of COM.
Note 2 : maxpwdAge is not configured per user, but per domain (until fine-grained password policies are enabled)
Further readings:
http://msdn.microsoft.com/en-us/library/ms974598.aspx [Recommended]
http://msdn.microsoft.com/en-us/library/cc220201%28prot.20%29.aspx
http://ldapwiki.willeke.com/wiki/AD%20Determining%20Password%20Expiration
http://ldapwiki.willeke.com/wiki/Domain%20Wide%20Account%20Policies

Answer 2

I struggled with this one too. Eventually, I was able to get it with the following criteria.
baseDN: 'DC=myofficedomain,DC=local',
filter: '(objectClass=domain)',
attributes: ['maxPwdAge']
I hope this helps anyone else using ldapsearch or NodeJS with ActiveDirectory.