CODEWITHSUNDEEP
winapi
Mark Robinson
Mark Robinson

Reputation: 953

LookupAccountName returns the local PC Domain instead of the logged in AD Domain

I've been using 

LookupAccountName

using the returned value from 

GetUserName

to retrieve the current logged on AD Domain Name.

This has been happily working for a while on a number of machines with a number of different NT based OS's

That is, until today, when instead of returning the logged in AD Domain, it returned the Computer Name as the domain.

Can anyone explain why this would happen less than 0.5% of the time?

Upvotes: 0

Views: 1047

Answers (1)

Mark Robinson
Mark Robinson

Reputation: 953

If there is an account on the local computer with the same name as the Active Directory username then LookupAccountName will return the local computer name (being the local Domain Name), rather than the required AD Domain name.

Instead I should use GetUserNameEx with NameUserPrincipal to return the current user's principal name, which can be fed into LookupAccountName to return the logged in Domain.

Upvotes: 3

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