On Fri, Sep 06, 2013 at 10:56:26PM +0200, Vincent Lefevre wrote: > > hostname(1) clearly says: > > > > --all-fqdns > > Displays all FQDNs of the machine. This option enumerates all > > configured network addresses on all configured network interfaces, and > > translates them to DNS domain names. Addresses that cannot > > be translated (i.e. because they do not have an appropriate reverse DNS > > entry) are skipped. Note that different addresses may resolve > > to the same name, therefore the output may contain duplicate entries. > > Do not make any assumptions about the order of the output. > > > > So it apparently does what it claims to do. What am I missing? > > The bug is in the documentation too, which has contradictions. > For instance, "Displays all FQDNs of the machine." is plainly > wrong here, since xvii.vinc17.org is a FQDN of the machine, but > is not listed.
But the second sentence in the same paragraph explicitely explains what is meant by "all". > Moreover "all configured network addresses" is ambiguous: though > for lo, 127.0.0.1 is the default address, all 127.* addresses > correspond to the same interface, and they may have their own > FQDN too (in particular, 127.0.1.1 in Debian). It seems getifaddrs() does not return anything but 127.0.0.1. > I also wonder what it means by "reverse DNS entry". If I use > "dig -x <IP_address_of_xvii.local>", I don't get any name. dig doesn't use /etc/hosts, does it? hostname uses getnameinfo() which does take /etc/hosts into account, too. Michael -- Michael Meskes Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org) Michael at BorussiaFan dot De, Meskes at (Debian|Postgresql) dot Org Jabber: michael.meskes at gmail dot com VfL Borussia! Força Barça! Go SF 49ers! Use Debian GNU/Linux, PostgreSQL -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
