Get Domain Name

[Dan]

Hi

I need to get the Domain Name in NT format. I can do it with the
following code, but it takes 5 seconds to execute, which is to much for
me. Anyone know how to do it faster ?

Thanks

Dany


DirectoryEntry rootDSE = new
DirectoryEntry("LDAP://RootDSE");
string dnc =
(string)rootDSE.Properties["defaultNamingContext"].Value;

DWORD rc; //code de retour
HANDLE handle = IntPtr.Zero;

rc = NativeMethods.DsBind(
null,
null,
out handle
);

if (rc != 0)
{
throw new Exception("...");
}

string[] nomDomaine;
try
{
nomDomaine = NameUtility.DsCrackNamesWrapper(
new string[] { dnc },
handle,
DS_NAME_FORMAT.DS_FQDN_1779_NAME,
DS_NAME_FORMAT.DS_NT4_ACCOUNT_NAME
);
}
catch (Exception ex)
{
throw new Exception("...." + ex.Message);
}
finally
{
NativeMethods.DsUnBind(ref handle);
}
return nomDomaine[0];

 

[Joe Kaplan]

The domain name for what? If you want the current user's domain name (which
is what you are getting with this code), why not parse out what is returned
from System.Security.Principal.WindowsIdentity.GetCurrent().Name?

Joe K.