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List:       kfm-devel
Subject:    Re: Fwd: SRV support in konqueror ?
From:       "Thiago Macieira" <thiago () bumerangue ! com>
Date:       2001-07-25 8:47:52
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On Tue, 24 Jul 2001 09:52:29 -0700, Waldo Bastian <bastian@kde.org> wrote :

> We pretty much depend on the operating system to do the DNS for us. We 
use 
> getaddrinfo(3) to do name lookups. getaddrinfo is part of glibc and I 
assume 
> that support for SRV should be added there.
> 
> Thiago is our DNS expert though, maybe he can give you a better answer.
> 
> > I hope i address the right person here, but i would like
> > an added feature in konqueror, namely the ability to
> > examine and follow DNS SRV records.

Hmm, that's an interesting feature. However, there's no way we can do that 
now without sending the DNS packets ourselves, or with use of the libresolv 
library (or equivalent). We have to set up the packets, send them, wait for 
the answer and then cache them. Maybe a daemon could be set up to do that.

However, there are two better ways:
1) wait for getresrrset function or something like that, that is to be 
included in the BIND 9 API and would allow us to ask for a resolution of a 
certain RR kind, not necessarily A, AAAA, A6 or PTR
2) wait for the SRV API to be standardised and be supported by the 
underlying resolving layer. When that is so, I trust getaddrinfo will do 
that for us, without the need to rewrite anything else in the code, except 
to have the service port ("http", for instance) be passed on to the 
resolution, instead of doing getservbyname(3).


--
  Thiago Macieira - UFOT Registry number: 1001
 thiagom@mail.com
   ICQ UIN: 1967141  PGP: 0x8F2978D5 and 0xEA9037A5 (PGP 2.x)
     Registered Linux user #65028

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