[Dovecot] GSSAPI Authentication Broke with Dovecot 1.1.16 -> 1.2.4 Upgrade

[Timo Sirainen]

On Fri, 2009-08-28 at 15:20 +1000, John Marshall wrote:
> This morning I upgraded a dovecot installation from 1.1.16 to 1.2.4 on a
> FreeBSD 7.2 server, and then spent 3 hours trying to figure out why
> GSSAPI authentication had broken.
> 
> It turned out to be a recent change in Dovecot's mech-gssapi.c to do
> with checking for NULs in usernames: everything worked fine when I
> disabled that test.

What exactly is the username? What does it say with the attached patch?

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