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Date:      Mon, 25 Feb 2019 03:56:08 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 236014] w -nn doesn't resolve hostname to ipv6 numeric if host has v4 and v6 entry.
Message-ID:  <bug-236014-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D236014

            Bug ID: 236014
           Summary: w -nn doesn't resolve hostname to ipv6 numeric if host
                    has v4 and v6 entry.
           Product: Base System
           Version: 12.0-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: bugs@FreeBSD.org
          Reporter: nistor@snickers.org

When trying to display numeric entries for hosts using 'w' it will not reso=
lve
ipv6 related hostnames to ipv6 nuemric entries if the host has the same
hostname entry with resolution on v4 and v6.

For example:

nistor@spike:~> w -n nistor
10:50PM  up 43 days, 21:36, 24 users, load averages: 0.31, 0.27, 0.21
USER       TTY      FROM                                      LOGIN@  IDLE =
WHAT
nistor     pts/19   cpexxxxxxxxxxxx-cmxxxxxxxxxxxx.cpe.net.c Sat02PM     2
-tcsh (tcsh)
nistor     pts/32   v6host.domain.com                        10:47PM     2
-tcsh (tcsh)

whereas:
nistor@spike:~> w -nn nistor
10:50PM  up 43 days, 21:36, 24 users, load averages: 0.31, 0.27, 0.21
USER       TTY      FROM                                      LOGIN@  IDLE =
WHAT
nistor     pts/19   99.230.xxx.xxx                           Sat02PM     3
-tcsh (tcsh)
nistor     pts/32   v6host.domain.com                        10:47PM     3
-tcsh (tcsh)


If the host is an ipv6 host with no ipv4 resolution to it then the display
works fine:

nistor@spike:~> w david
10:55PM  up 43 days, 21:41, 24 users, load averages: 0.31, 0.23, 0.19
USER       TTY      FROM                                      LOGIN@  IDLE =
WHAT
david      pts/12   r2.ip6.domain.com                        22Jan19  9:12
-/bin/tcsh
nistor@spike:~> w -n david
10:55PM  up 43 days, 21:41, 24 users, load averages: 0.31, 0.23, 0.19
USER       TTY      FROM                                      LOGIN@  IDLE =
WHAT
david      pts/5    2001:XXX:yyyy:f000::2                   22Jan19 28days
alpine

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