Re: Bug#773443: host.conf.5: spoof deprecated ?

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Hello Michael,

Le lundi 09 mars 2015 à 10:03:09, Michael Kerrisk (man-pages) a écrit :
> On 03/09/2015 08:59 AM, Stéphane Aulery wrote:
> > Le lundi 09 mars 2015 à 08:22:01, Michael Kerrisk (man-pages) a écrit :
> >>
> >> On 03/08/2015 02:05 PM, Stéphane Aulery wrote:
> >>>
> >>> A Debian user reported that [1]:
> >>>
> >>>> spoof* keywords (nospoof, spoofalert, spoof) are here from 1996,
> >>>> they are still valid keywords but do not have any effect apparently,
> >>>> no libraries or tools use them
> >>>>
> >>>> it is misleading to see references to resolv+ and rlogin, the keywords
> >>>> are just ignored these days; the only meaning they have is that they
> >>>> are
> >>>> allowed by host.conf syntax
> >>>
> >>> The glibc source code seems to confirm that the keywords nospoof,
> >>> spoofalert and spoof are accepted but without effects. I could find
> >>> nothing in the changelog. Could you please confirm that they are
> >>> obsolete? I could correct the man page accordingly.
> >>
> >> I had a quick grep in the glibc source code.
> >>
> >> It appears that you (and the reporter) are correct. (Even back in 
> >> glibc 2.1, things look the same).
> >>
> >> A patch would be appreciated!

I dug a little further comparing versions 2.0.6 [1], 2.0.7 [2]
and trunk [3] of glibc and I come to a different conclusion.

The keywords nospoof, spoofalert, spoof and RESOLV_SPOOF_CHECK were
added to glibc 2.0.7 but never implemented and documented in the
changelog.

[1] http://ftp.gnu.org/gnu/glibc/glibc-2.0.6.tar.gz
[2] http://archive.debian.org/debian/dists/hamm/main/source/libs/glibc_2.0.7t.orig.tar.gz
[3] https://sourceware.org/git/?p=glibc.git&a=search&h=HEAD&st=grep&s=spoof&sr=1

Regards,

-- 
Stéphane Aulery
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