Re: [patch] nsswitch.conf.5: clarify the "notfound" status

["Michael Kerrisk (man-pages)" <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

On Fri, Mar 30, 2012 at 10:31 AM, Mark R Bannister
<mark-/K+B3afwL8Jt0JrxVvvTASp2UmYkHbXO@public.gmane.org> wrote:
> On 29/03/2012 19:34, Michael Kerrisk (man-pages) wrote:
>>
>> On Thu, Mar 29, 2012 at 9:09 AM, Mark R Bannister
>> <mark-/K+B3afwL8Jt0JrxVvvTASp2UmYkHbXO@public.gmane.org>  wrote:
>>>
>>> On 28/03/2012 19:27, Peter Schiffer wrote:
>>>>
>>>> Hello,
>>>>
>>>> I am suggesting the following update of the  "notfound" status on the
>>>> nsswitch.conf.5 man page. I am not 100% sure that this is the correct
>>>> place
>>>> where this information on the man page should be placed. Any comments
>>>> are
>>>> welcome.
>>>>
>>> Hi Peter,
>>>
>>> I did a rewrite of the nsswitch.conf man page in October last year:
>>>
>>> http://article.gmane.org/gmane.linux.man/2366/match=nsswitch+conf
>>>
>>> I'm still waiting for Michael to incorporate these changes.  May I
>>> suggest
>>> you send in a patch that is applied against this?  I would also suggest
>>> that
>>> if you're going to make reference to "initgroups" you'll need to add some
>>> further description somewhere that explains what this is and when you
>>> would
>>> use it.
>>
>> Looking a little deeper at this, I'd like another set of eyes. Mark,
>> would you be able to review Peter's patch?
>>
>> Thanks,
>>
>> Michael
>>
>
> I can't find this comment in glibc myself, there's nothing to this effect in
> grp/initgroups.c ?

Follow Peter's URL.

> I've tested on a build with glibc 2.5 - admittedly not the latest version
> but it does feature the initgroups functionality - and I am not witnessing
> this behaviour.  My configuration file has no initgroups line, and this
> entry:
>
>    group: db [NOTFOUND=return] files
>
> ...always returns as expected if my /var/db/group.db file does not contain
> the group entry that I am searching for.
>
> So I don't concur with the suggested change ...

It looks like the change only arrived in glibc 2.14. Would you be able
to take a look there?

Thanks,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/
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