Avoid AD query failure if computer is not in AD

[supersonic]

Hi!

I'm "messing" around with the UDF "adfunctions.au3".

When running a script using this UDF on a non-AD computer,

I get the following error message (- even when no AD functions are called):

C:\TEMP\_\AUTOIT\Include\ADFunctions\ADFunctions.au3 (104) : ==> Variable must be of type "Object".:

Global $strDNSDomain = $objRootDSE.Get("defaultNamingContext")

Global $strDNSDomain = $objRootDSE^ ERROR

How could I avoid the error and keep the script running?

Setting an error handler couldn't this (yet).

Any Ideas?

Greets,

-supersonic.

[PsaltyDS]

Hi!

I'm "messing" around with the UDF "adfunctions.au3".

When running a script using this UDF on a non-AD computer,

I get the following error message (- even when no AD functions are called):

C:\TEMP\_\AUTOIT\Include\ADFunctions\ADFunctions.au3 (104) : ==> Variable must be of type "Object".:

Global $strDNSDomain = $objRootDSE.Get("defaultNamingContext")

Global $strDNSDomain = $objRootDSE^ ERROR

How could I avoid the error and keep the script running?

Setting an error handler couldn't this (yet).

Any Ideas?

Greets,

-supersonic.

That UDF unconditionally initializes some domain related global variables by running some COM functions at run time without any of its UDF functions being called yet. I don't care for that and believe that makes it a poorly behaved UDF, but maybe that's just me.

You need a COM error handler to handle these errors gracefully.

Another option is to put that portion of the initialization in a function of its own, like _AD_Init(), and only run that to initialize those globals when you expect to be on a domain.

[supersonic]

Thank you for the answer.

I added:

If IsObj($oRootDSE) = 0 Then Return ""

... this helped me out.

That UDF unconditionally initializes some domain related global variables by running some COM functions at run time without any of its UDF functions being called yet. I don't care for that and believe that makes it a poorly behaved UDF, but maybe that's just me.

You need a COM error handler to handle these errors gracefully.

Another option is to put that portion of the initialization in a function of its own, like _AD_Init(), and only run that to initialize those globals when you expect to be on a domain.

Edited April 22, 2009 by supersonic