Bug 515836

Summary:	sys-apps/net-tools: hostname -s gives 'hostname: Unknown host' when the FQDN does not resolve
Product:	Gentoo Linux	Reporter:	Joshua Kinard <kumba>
Component:	[OLD] Core system	Assignee:	Gentoo's Team for Core System packages <base-system>
Status:	RESOLVED FIXED
Severity:	enhancement	CC:	daniel.goertzen
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	http://sourceforge.net/p/net-tools/mailman/message/34645433/
See Also:	https://bugzilla.redhat.com/show_bug.cgi?id=319981 https://bugzilla.redhat.com/show_bug.cgi?id=531702 http://bugs.debian.org/552482 https://bugs.gentoo.org/show_bug.cgi?id=526040
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Updated patch from RedHat to fix hostname -s Updated patch for net-tools-1.60_p20141019041918

Description Joshua Kinard gentoo-dev

2014-06-30 09:28:45 UTC

Created attachment 379970 [details, diff]
Updated patch from RedHat to fix hostname -s

hostname -s will always give "Unknown Host" if the hostname FQDN cannot be resolved in DNS or in /etc/hosts.  According to RedHat bug 319981, this is different behavior than on AIX, MacOS X, and FreeBSD.  RedHat net-tools maintainers applied a minor patch to always make hostname -s return the short-form of the hostname regardless if it can be fully resolved or not.

Example:
# hostname foo.bar.baz
# hostname
foo.bar.baz
# hostname -s
hostname: Unknown host

After patch:
# hostname -s
foo

Per the RH bug comment #11, Debian is also fine with this change.  I re-diffed the patch against net-tools-1.60_p20130513023548 to get it to apply and tested it out to make sure the expected behavior works.

Comment 1 Joshua Kinard gentoo-dev

2014-09-11 09:24:13 UTC

If this patch could get pushed upstream too, that'd be great.  See the referenced RedHat and Debian bugs for concurrence on this issue.

Comment 2 Joshua Kinard gentoo-dev

2014-10-20 11:30:34 UTC

Created attachment 387044 [details, diff]
Updated patch for net-tools-1.60_p20141019041918

Comment 3 SpanKY gentoo-dev

2015-11-24 23:20:47 UTC

sent a patch upstream

Comment 4 SpanKY gentoo-dev

2015-11-25 03:40:57 UTC

i've landed this in upstream now.  it'll be in the next snapshot.

Comment 5 Daniel Goertzen 2016-01-09 16:53:27 UTC

The newest ebuild (net-tools-1.60_p20151124144947) has a non-working "hostname -s".  Any workarounds on getting this working?  I'm using some scripts that depend on it.

Comment 6 Daniel Goertzen 2016-01-09 17:09:46 UTC

Never mind, I added my hostname to /etc/hosts and it seems to work now.