Bug#753944: pbuilder: USENETWORK=no breaks package builds

[Niko Tyni]

On Sun, Jul 13, 2014 at 09:04:13PM +0200, gregor herrmann wrote:
> On Sun, 13 Jul 2014 18:21:30 +0000, Thorsten Glaser wrote:
> 
> > >Unfortunately there seem to still be problems. I noticed it with
> > >rebuilding libio-socket-ip-perl. With sbuild, similar to buildds it
> > >succeeds, suceeds also with pbuilder 0.215 but fails with 0.215+nmu3.

> > Hm, weird. It says it cannot listen with IPv6… but in my tests,
> > the loopback interface got [::1] assigned just fine… so this
> > would work unless it tries to listen on the external address
> > of the host (e.g. from the outside-of-the-chroot’s /etc/hosts).

FWIW the problem can be reduced to this:

 perl -MSocket=getaddrinfo -le 'print getaddrinfo("127.0.0.1", 0, { family => 2, flags => 33, socktype => 1 })' 

which gives 'Name or service not known' when only lo is enabled.
-- 
Niko Tyni   ntyni at debian.org