Re: [bug-inetutils] dnsdomainname, domainname, nisdomainname, ypdomainname

[Simon Josefsson]

Mats Erik Andersson <address@hidden> writes:

> The test script is problematic:
>
>   a) There is no requirement that the name of any single computer
>      is set to something that is resolvable by DNS or any other
>      method. If that information is lacking, then "dnsdomainname"
>      fails with "cannot determine host name", and the test script
>      gives a false negative. This happens for me with NetBSD being
>      used with Qemu.
>
>   b) A particular system may be legally set up in a manner that
>      a non-fully qualified host name is returned by xgethostname()
>      and ensuing resolution. This can be accomplished by
>
>         # /etc/hosts
>         10.0.1.1    dag  dag.utan.ljus
>
>         # /etc/nsswitch.conf
>         hosts   files dns
>
>         $ hostname
>         dag
>
>      Thus "dnsdomainname" fails with "cannot qualify host name: dag",
>      again producing a false negative in the test script. This happened
>      to be the case on my OpenSolaris/OpenIndiana systems!
>
> The test script should report "skipping" in either of the above cases.

You are right.  I pushed a patch that should make the self-test pass,
however it would nice to improve it eventually to other error situations
(I've added a FIXME discussing this).  I can't think of any easy way to
do that in a portable way though.

/Simon