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Full Discussion: DNS ENUM RR interpretation
Special Forums IP Networking DNS ENUM RR interpretation Post 302143755 by smanu on Saturday 3rd of November 2007 07:11:07 AM
Old 11-03-2007
DNS ENUM RR interpretation

Hi Guys,

This is really really urgent. Am looking out for some quick answers.

I'm developing a DNS Resolver client that interprets DNS Query repsonses & pass on the needful to DNS applications.

When an ENUM query(modified to an nslookup naptr query) is issued & an NAPTR RR(Resource Record) is obtained, how is the Regexp(Rule) applied to the domain name or URI? I have gone through RFC's but I'm not very clear with how a Regexp(Rule) is to be interpreted or applied!

For example,
Domain Name: 9.8.7.6.5.4.3.2.1.9.8.e164i.arpa

NAPTR RR:
;; order pref flags service regexp replacement
IN NAPTR 0 0 "U" "E2U+sip" "!^.*$!sip:\1234567@errata.com!" (root)


How should the regexp(rule) be applied to the domain name.

Anticipating a reply!
Thanks.
 

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Regexp::Common::URI::tv(3)				User Contributed Perl Documentation				Regexp::Common::URI::tv(3)

NAME
Regexp::Common::URI::tv -- Returns a pattern for tv URIs. SYNOPSIS
use Regexp::Common qw /URI/; while (<>) { /$RE{URI}{tv}/ and print "Contains a tv URI. "; } DESCRIPTION
$RE{URI}{tv} Returns a pattern that recognizes TV uris as per an Internet draft [DRAFT-URI-TV]. Under "{-keep}", the following are returned: $1 The entire URI. $2 The scheme. $3 The host. REFERENCES
[DRAFT-URI-TV] Zigmond, D. and Vickers, M: Uniform Resource Identifiers for Television Broadcasts. December 2000. [RFC 2396] Berners-Lee, Tim, Fielding, R., and Masinter, L.: Uniform Resource Identifiers (URI): Generic Syntax. August 1998. SEE ALSO
Regexp::Common::URI for other supported URIs. AUTHOR
Damian Conway (damian@conway.org) MAINTAINANCE
This package is maintained by Abigail (regexp-common@abigail.be). BUGS AND IRRITATIONS
Bound to be plenty. LICENSE and COPYRIGHT This software is Copyright (c) 2001 - 2009, Damian Conway and Abigail. This module is free software, and maybe used under any of the following licenses: 1) The Perl Artistic License. See the file COPYRIGHT.AL. 2) The Perl Artistic License 2.0. See the file COPYRIGHT.AL2. 3) The BSD Licence. See the file COPYRIGHT.BSD. 4) The MIT Licence. See the file COPYRIGHT.MIT. perl v5.18.2 2013-03-08 Regexp::Common::URI::tv(3)
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