Re: Kerberos and ODBC

2011/2/21 Kyle Strickland <[email protected]>:
> Hi folks,
>
> A question and a possible answer here:
>
> Question: What is the Right Way to get Kerberos login to work with FreeTDS
> and unixODBC?  (Note: I did not try setting up a freetds.conf file.  I was
> hoping to forego that and just use odbc.ini.)
>
> Possible Answer: It's broken.  I was unable to get it to work without
> modifying src/odbc/connectparams.c.  Looks like whatever you do with just
> the odbc.ini file, only connection->server_name gets filled in, but
> connection->server_host_name is left blank.  (See
> connectparams.c:odbc_get_dsn_info().)  Later, in
> src/tds/gssapi.c:tds_gss_get_auth(), connection->server_host_name is used to
> create the SPN, but since that is blank, the SPN comes out as
> "MSSQLSvc/:1433".  From that point, it's clear that auth is going to fail.
>  So modifying odbc_get_dsn_info to drop the "Server" parameter into
> connection->server_host_name instead of connection->server_name, seems to
> fix that and everything works (for me anyway).
>
> I am fairly new to using this library and unixODBC, so I'm wondering if I'm
> missing something that should be obvious, or if this is a bug.  And if it's
> a bug, is this the right way to fix it, or is this going to break whatever
> the normal usage pattern is supposed to be?
>
> Diff attached.
>
> Thanks!
>

I backported a fix from CVS HEAD. You can find full patch at
http://freetds.sourceforge.net/ (post 0.82 patch). Your patch is
correct but for coherence I prefer to backport.

freddy77
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