tags 610036 fixed-upstream thanks On Thu, Oct 25, 2012 at 2:14 AM, Simon Paillard <spaill...@debian.org> wrote: > Control: -1 tag +patch > > Hi, > > On Sat, Jun 09, 2012 at 07:43:46PM +0200, Witold Baryluk wrote: >> On 06-09 15:36, Simon Paillard wrote: >> > On Sat, Jan 15, 2011 at 12:52:17AM +0100, Witold Baryluk wrote: > [..] >> > > I today discovered undocumented feature of resolv.conf >> > > Nameply nameserver can be a IPv6 address! >> > > Current manpage (implicitly) says only IPv4 is supported. >> > > ================== >> > > nameserver 2001:470:20::2 >> > > nameserver 149.156.82.205 >> > >> > Well, not documented indeed, I wonder if it is really necessary to >> > explicit this. >> >> Well, many programs often use slightly different notation for IPv4 and >> IPv6, like putting IPv6 in square brackets (this is for example a case >> for hosts.allow/hosts.deny syntax). > > Code (function inet_pton6) says it conforms to RFC 1884: > 2.2 Text Representation of Addresses > http://tools.ietf.org/html/rfc1884#page-4 > > In the same time, inet_pton manpages says it's RFC2373 (a small update, not > changing IPv6 address string format): > http://tools.ietf.org/html/rfc2373#section-2.2 > > Patch sent upstream. > >> It also needs documenting, in case in the future glibc would allow >> changing default port 53 to something else. >> >> One could think that it will be something like 'nameserver >> 10.0.1.1:5353', but it will not work in ipv6 case. So probably a >> keyword-like syntax 'nameserver 10.0.1.1 port 5353', or squere brackets >> notations (like in URLs), will be needed. > > Let's keep future evolutions for future documentation :) > >> Some tools like network-manager, resolvconf, rdnssd, openvpn, etc. >> sometimes need to write to resolv.conf and until it is documented and >> stabilized, it cannot be done safely. > > PS: btw, I've checked v4/v6 in this manpage, glibc happens to not implement > sortlist for IPv6 addresses.
Simon, I've applied a slightly modified version of your patch, for upstream 3.45. Cheers, Michael --- a/man5/resolv.conf.5 +++ b/man5/resolv.conf.5 @@ -42,8 +42,9 @@ and the domain search path is constructed from the domain name. The different configuration options are: .TP \fBnameserver\fP Name server IP address -Internet address (in dot notation) of a name server -that the resolver should query. +Internet address of a name server that the resolver should query, +either an IPv4 address (in dot notation), +or an IPv6 address in colon (and possibly dot) notation as per RFC 2373. Up to .B MAXNS (currently 3, see \fI<resolv.h>\fP) name servers may be listed, -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
