Question

In my application I need to know if the computer is the primary domain controller of a domain, so I need to know the domain of the computer to call NetGetDCName function.

Thanks.

EDIT: The problem is related with the DCOM authentication so I need to know the domain to use the DOMAIN\USERNAME in case of a PDC or COMPUTER\USERNAME if I need to use the local authentication database of the computer.

Answer 1

I would consider using NetWkstaGetInfo() and pass the local computer name is that first parameter.

#include <Lmwksta.h>
#include <StrSafe.h>

WCHAR domain_name[256];
WKSTA_INFO_100 info = {0};
if (NERR_Success == NetWkstaGetInfo(L"THIS-COMPUTER", 100, &info) && 
    SUCCEEDED(StringCchCopy(domain_name, ARRAYSIZE(domain_name), info.wki100_langroup))) {
    // use domain_name here...
}