MIME-Version: 1.0
In-Reply-To: <1807512246.5806763.1401107982420.JavaMail.zimbra@redhat.com>
Content-Type: text/plain; charset=utf-8
Message-ID: <1738085611.5809889.1401108711247.JavaMail.zimbra@redhat.com>
Subject: IDN support in host/dig/nslookup using GNU libidn(2)
Thread-Index: 7La5zHfy2GgN8kUVLJV3fMnkGZTh8w==
Date: Mon, 26 May 2014 08:51:51 -0400 (EDT)
Thread-Topic: IDN support in host/dig/nslookup using GNU libidn(2)
To: bind-suggest@isc.org
Content-Transfer-Encoding: 7bit
From: Tomas Hozza <thozza@redhat.com>
Content-Length: 1311

Hi.

We maintain like 5 Fedora/RHEL specific patches that are modifying
host/dig/nslookup to use libidn instead of idnkit.

The change was made by the previous maintainer Adam Tkac, but I guess
the reason was that the idnkit is not included in Fedora/RHEL and
we don't want to build software using bundled libraries (it is against
Fedora policy).

I'm not sure if there is already a ISC-Bugs # number for this. However
I would like to know if you would be interested in adding support
for libidn.

I consider it more a feature request than a Bug. My suggestion is to:

- introduce new configure option to turn on the usage of GNU libidn
  (something like --with-gnu-libidn)
- use libidn2 for IDN -> ACE conversion (as libidn2 suppoerts IDNA2008 [1]
  whereas libidn supports only IDNA2003)
- use libidn for ACE -> IDN conversion where needed (as libidn2 apparently
  does not include support for this)


I am willing to make the contribution and work with you and incorporate
your feedback to make the patch acceptable.

Please let me know what do you think about this.

Thank you.

[1] http://www.icann.org/en/resources/idn/idn-guidelines-02sep11-en.htm

Regards,
-- 
Tomas Hozza
Software Engineer - EMEA ENG Developer Experience

PGP: 1D9F3C2D
Red Hat Inc.                               http://cz.redhat.com