Fixes for S3 DCE/RPC GSSAPI with Heimdal

[Luke Howard]

> On Thu, 2011-04-21 at 11:07 +0200, Luke Howard wrote:
>> You can iterate through the keytab, not ideal and won't work for user to user, but fine for most use. That's what XAD - which effectively used 1.7 - did.
> 
> Ouch, that really is a hack...  As Simo is willing to live without this
> feature on earlier krb5 versions, I don't proposed to do that.


Certainly not ideal. But it shouldn't be too inefficient.

-- Luke