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Detect the registered domain for a given domain name in C, Perl and PHP, based on Mozillas effective TLD listing
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=============================================== Detection of registered domains by reg-dom libs =============================================== The reg-dom libs are available in C, Perl and PHP so far. They include recent representations of the effective TLD list available at http://mxr.mozilla.org/mozilla-central/source/netwerk/dns/effective_tld_names.dat?raw=1 and help to convert an arbitrary domain name to the registered domain name. Sample use: dkim-reputation.org blocks signing domains on the level of registered domains to rate senders who use e.g. a.spamdomain.tld, b.spamdomain.tld, ... under the most common identifier - the registered domain - finally. Project page: http://www.dkim-reputation.org/regdom-libs/ Pseudo code: registeredDomain = getRegisteredDomain(ingoingDomain); Return values: 1) NULL if ingoingDomain is a TLD 2) the registered domain name if TLD is known 3) just <domain>.<tld> if <tld> is unknown This case was added to support new TLDs in outdated reg-dom libs by a certain likelihood. This fallback method is implemented in the last conversion step and can be simply commented out. --- If you like to regenerate the effective TLD tree structure by yourself you can use the script generateEffectiveTLDs.php with the following parameters: php generateEffectiveTLDs.php php > PHP/effectiveTLDs.inc.php php generateEffectiveTLDs.php perl > Perl/effectiveTLDs.pm php generateEffectiveTLDs.php c > C/tld-canon.h # Licensed to the Apache Software Foundation (ASF) under one or more # contributor license agreements. See the NOTICE file distributed with # this work for additional information regarding copyright ownership. # The ASF licenses this file to you under the Apache License, Version 2.0 # (the "License"); you may not use this file except in compliance with # the License. You may obtain a copy of the License at: # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # </@LICENSE> Florian Sager, 2009-02-05, email@example.com, http://www.agitos.de