Problems with wshelper res_init.c

[Douglas E. Engert]

> Jeffrey Altman wrote:
> 
> Douglas E. Engert wrote:
> 
> > Jeffrey Altman wrote:
> >
> >
> >> Looking at the patch and the MIT WSHelper code I have to wonder whether
> >> the WSHelper which is being shipped with KX509 is out of date or out of
> >> sync with the MIT distribution.  As far as I can tell the code you have
> >> identified as being the problem should never be executed on 2000 and XP
> >> because those systems support the IPHelper API.
> >>
> >>
> > Well that might explain why I have not gotten any reports of problems
> > with the Kerberos code.
> >
> > The UMich res_init.c code matches the MIT, except  that they made it more
> > standalone by including some header info in to the code. The code itself
> > did not appear to be changed.
> >
> >
> If this is the case, I would be extremely interested in knowing why the IPHelper code is
> not be used instead of the search through the Registry.

It looks like res_init_startup() is not being called, thus 
the iphlpapi.dll is not being loaded, and the res_init.c ends up using the
other methods to find the servers.  

This might be the fix! 

> 
> > All they really need is to lookup a srv record. Is there some easy way
> > in W2K to do this? (For W2k could they just use the DnsQuery functions?)
> >
> 
> I see no reason why you could not use DnsQuery()
> 
>   http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dns/dns/dnsquery.asp
> 
> provided that they only need to support Win2000 or above.
> 
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-- 

 Douglas E. Engert  <DEEngert at anl.gov>
 Argonne National Laboratory
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