On Thu, Jun 8, 2017 at 1:36 AM, Heikki Linnakangas <hlinn...@iki.fi> wrote:

> While testing libpq and GSS the other day, I was surprised by the behavior
> of the host and hostaddr libpq options, if you specify a list of hostnames.
> I did this this, and it took me quite a while to figure out what was going
> on:
> $ psql "dbname=postgres hostaddr=::1  host=localhost,localhost
>> user=krbtestuser" -c "SELECT 'hello'"
>> psql: GSSAPI continuation error: Unspecified GSS failure.  Minor code may
>> provide more information
>> GSSAPI continuation error: Server postgres/localhost,localhost@PG.EXAMPLE
>> not found in Kerberos database
> That was a pilot error; I specified a list of hostnames, but only one
> hostaddr. But I would've expected to get a more helpful error, pointing
> that out.
> Some thoughts on this:
> 1. You cannot actually specify a list of hostaddrs. Trying to do so gives
> error:
> psql: could not translate host name "::1,::1" to address: Name or service
>> not known
> That error message is a bit inaccurate, in that it wasn't really a "host
> name" that it tried to translate, but a raw address in string format.
> That's even more confusing if you make the mistake that you specify
> "hostaddr=localhost":

Your commit to fix this part, 76b11e8a43eca4612d, is giving me compiler

fe-connect.c: In function 'connectDBStart':
fe-connect.c:1625: warning: 'ret' may be used uninitialized in this function

gcc version 4.4.7 20120313 (Red Hat 4.4.7-18) (GCC)



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