Net-Nslookup-2.04/000755 025721 000024 00000000000 12252340221 014403 5ustar00darrenstaff000000 000000 Net-Nslookup-2.04/COPYING000644 025721 000024 00000043122 12157341764 015461 0ustar00darrenstaff000000 000000 GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Library General Public License instead.) You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things. To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it. For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations. Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary. To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all. The precise terms and conditions for copying, distribution and modification follow. GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION 0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the Program or a portion of it, either verbatim or with modifications and/or translated into another language. (Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as "you". Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program (independent of having been made by running the Program). Whether that is true depends on what the Program does. 1. You may copy and distribute verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program. You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee. 2. You may modify your copy or copies of the Program or any portion of it, thus forming a work based on the Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions: a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change. b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License. c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other licensees extend to the entire whole, and thus to each and every part regardless of who wrote it. 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You may copy and distribute the Program (or a work based on it, under Section 2) in object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following: a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or, c) Accompany it with the information you received as to the offer to distribute corresponding source code. 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If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this License incorporates the limitation as if written in the body of this License. 9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies a version number of this License which applies to it and "any later version", you have the option of following the terms and conditions either of that version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of this License, you may choose any version ever published by the Free Software Foundation. 10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11. 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It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA Also add information on how to contact you by electronic and paper mail. If the program is interactive, make it output a short notice like this when it starts in an interactive mode: Gnomovision version 69, Copyright (C) year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program. You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names: Yoyodyne, Inc., hereby disclaims all copyright interest in the program `Gnomovision' (which makes passes at compilers) written by James Hacker. , 1 April 1989 Ty Coon, President of Vice This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Library General Public License instead of this License. Net-Nslookup-2.04/lib/000755 025721 000024 00000000000 12252340221 015151 5ustar00darrenstaff000000 000000 Net-Nslookup-2.04/Makefile.PL000644 025721 000024 00000001255 12157341754 016400 0ustar00darrenstaff000000 000000 use strict; use ExtUtils::MakeMaker; my %PREREQ_PM = ( 'Net::DNS' => 0.00, 'Test::More' => 0.45, ); my %clean = ( 'FILES' => '$(DISTVNAME).tar$(SUFFIX) *.ppd' ); my %ABSTRACT = (); if ($] >= 5.00503) { %ABSTRACT = ( 'AUTHOR' => 'darren chamberlain ', 'ABSTRACT_FROM' => 'lib/Net/Nslookup.pm', ); } my %dist = ( PREOP => 'perldoc -t lib/Net/Nslookup.pm > README', ); WriteMakefile( 'NAME' => 'Net::Nslookup', 'VERSION_FROM' => 'lib/Net/Nslookup.pm', 'PREREQ_PM' => \%PREREQ_PM, 'LICENSE' => 'gpl', 'clean' => \%clean, 'dist' => \%dist, %ABSTRACT, ); Net-Nslookup-2.04/MANIFEST000644 025721 000024 00000000204 12157342017 015541 0ustar00darrenstaff000000 000000 lib/Net/Nslookup.pm COPYING Makefile.PL MANIFEST This list of files META.yml README t/a.t t/cname.t t/mx.t t/ns.t t/ptr.t t/srv.t Net-Nslookup-2.04/META.yml000644 025721 000024 00000001102 12252340221 015646 0ustar00darrenstaff000000 000000 --- #YAML:1.0 name: Net-Nslookup version: 2.04 abstract: Provide nslookup(1)-like capabilities author: - darren chamberlain license: gpl distribution_type: module configure_requires: ExtUtils::MakeMaker: 0 build_requires: ExtUtils::MakeMaker: 0 requires: Net::DNS: 0 Test::More: 0.45 no_index: directory: - t - inc generated_by: ExtUtils::MakeMaker version 6.56 meta-spec: url: http://module-build.sourceforge.net/META-spec-v1.4.html version: 1.4 Net-Nslookup-2.04/README000644 025721 000024 00000006422 12252340222 015270 0ustar00darrenstaff000000 000000 NAME Net::Nslookup - Provide nslookup(1)-like capabilities SYNOPSIS use Net::Nslookup; my @addrs = nslookup $host; my @mx = nslookup(type => "MX", domain => "perl.org"); DESCRIPTION "Net::Nslookup" provides the capabilities of the standard UNIX command line tool nslookup(1). "Net::DNS" is a wonderful and full featured module, but quite often, all you need is `nslookup $host`. This module provides that functionality. "Net::Nslookup" exports a single function, called "nslookup". "nslookup" can be used to retrieve A, PTR, CNAME, MX, NS, SOA, TXT, and SRV records. my $a = nslookup(host => "use.perl.org", type => "A"); my @mx = nslookup(domain => "perl.org", type => "MX"); my @ns = nslookup(domain => "perl.org", type => "NS"); my $name = nslookup(host => "206.33.105.41", type => "PTR"); my @srv = nslookup(term => "_jabber._tcp.gmail.com", type => "SRV"); "nslookup" takes a hash of options, one of which should be *term*, and performs a DNS lookup on that term. The type of lookup is determined by the *type* argument. If *server* is specified (it should be an IP address, or a reference to an array of IP addresses), that server(s) will be used for lookups. If only a single argument is passed in, the type defaults to *A*, that is, a normal A record lookup. If "nslookup" is called in a list context, and there is more than one address, an array is returned. If "nslookup" is called in a scalar context, and there is more than one address, "nslookup" returns the first address. If there is only one address returned, then, naturally, it will be the only one returned, regardless of the calling context. *domain* and *host* are synonyms for *term*, and can be used to make client code more readable. For example, use *domain* when getting NS records, and use *host* for A records; both do the same thing. *server* should be a single IP address or a reference to an array of IP addresses: my @a = nslookup(host => 'example.com', server => '4.2.2.1'); my @a = nslookup(host => 'example.com', server => [ '4.2.2.1', '128.103.1.1' ]) By default, when doing CNAME, MX, and NS lookups, "nslookup" returns names, not addresses. This is a change from versions prior to 2.0, which always tried to resolve names to addresses. Pass the *recurse => 1* flag to "nslookup" to have it follow CNAME, MX, and NS lookups. Note that this usage of "recurse" is not consistent with the official DNS meaning of recurse. # returns soemthing like ("mail.example.com") my @mx = nslookup(domain => 'example.com', type => 'MX'); # returns soemthing like ("127.0.0.1") my @mx = nslookup(domain => 'example.com', type => 'MX', recurse => 1); SOA lookups return the SOA record in the same format as the `host` tool: print nslookup(domain => 'example.com', type => 'SOA'); dns1.icann.org. hostmaster.icann.org. 2011061433 7200 3600 1209600 3600 TIMEOUTS Lookups timeout after 15 seconds by default, but this can be configured by passing *timeout => X* to "nslookup". DEBUGGING Pass *debug => 1* to "nslookup" to emit debugging messages to STDERR. AUTHOR darren chamberlain Net-Nslookup-2.04/t/000755 025721 000024 00000000000 12252340221 014646 5ustar00darrenstaff000000 000000 Net-Nslookup-2.04/t/a.t000644 025721 000024 00000000654 12157341246 015274 0ustar00darrenstaff000000 000000 #!/usr/bin/perl -w # vim: set ft=perl: use strict; use Test::More tests => 3; my ($res, @res); use_ok("Net::Nslookup"); # Get A record $res = nslookup(host => "test.boston.com", type => "A"); is($res, "66.151.183.17", "nslookup(host => www.boston.com, type => A) -> 66.151.183.17"); # Get A record (shortcut usage) $res = nslookup("test.boston.com"); is($res, "66.151.183.17", "nslookup(www.boston.com) -> 66.151.183.17"); Net-Nslookup-2.04/t/cname.t000644 025721 000024 00000000463 12157341333 016132 0ustar00darrenstaff000000 000000 #!/usr/bin/perl -w # vim: set ft=perl: use strict; use Test::More tests => 2; my ($res, @res); use_ok("Net::Nslookup"); # Get CNAME record $res = nslookup(host => "ctest.boston.com", type => "CNAME"); is($res, "www.boston.com", "nslookup(host => 'ctest.boston.com', type => CNAME) -> www.boston.com"); Net-Nslookup-2.04/t/mx.t000644 025721 000024 00000001313 12252337637 015476 0ustar00darrenstaff000000 000000 #!/usr/bin/perl -w # vim: set ft=perl: use strict; use Test::More tests => 5; my ($res, @res); use_ok("Net::Nslookup"); @res = nslookup(domain => "boston.com", type => "MX"); @res = sort @res; is($res[0], "bghqmail.globe.com", "nslookup(domain => 'boston.com', type => MX) -> bghqmail.globe.com"); is($res[1], "inapmail.boston.com", "nslookup(domain => 'boston.com', type => MX) -> inapmail.boston.com"); @res = nslookup(domain => "boston.com", type => "MX", recurse => 1); @res = sort @res; is($res[0], "50.203.72.25", "nslookup(domain => 'boston.com', type => MX, recurse => 1) -> 50.203.72.25"); is($res[1], "66.151.183.181", "nslookup(domain => 'boston.com', type => MX, recurse => 1) -> 66.151.183.181"); Net-Nslookup-2.04/t/ns.t000644 025721 000024 00000002163 12107202245 015457 0ustar00darrenstaff000000 000000 #!/usr/bin/perl -w # vim: set ft=perl: use strict; use Test::More tests => 9; my ($res, @res); use_ok("Net::Nslookup"); @res = nslookup(domain => "boston.com", type => "NS"); @res = sort @res; is($res[0], "ns1.p22.dynect.net", "nslookup(domain => 'boston.com', type => NS) -> ns1.p22.dynect.net"); is($res[1], "ns2.p22.dynect.net", "nslookup(domain => 'boston.com', type => NS) -> ns2.p22.dynect.net"); is($res[2], "ns3.p22.dynect.net", "nslookup(domain => 'boston.com', type => NS) -> ns3.p22.dynect.net"); is($res[3], "ns4.p22.dynect.net", "nslookup(domain => 'boston.com', type => NS) -> ns4.p22.dynect.net"); @res = nslookup(domain => "boston.com", type => "NS", recurse => 1); @res = sort @res; is($res[0], "204.13.250.22", "nslookup(domain => 'boston.com', type => NS, recurse => 1) -> 204.13.250.22"); is($res[1], "204.13.251.22", "nslookup(domain => 'boston.com', type => NS, recurse => 1) -> 204.13.251.22"); is($res[2], "208.78.70.22", "nslookup(domain => 'boston.com', type => NS, recurse => 1) -> 208.78.70.22"); is($res[3], "208.78.71.22", "nslookup(domain => 'boston.com', type => NS, recurse => 1) -> 208.78.71.22"); Net-Nslookup-2.04/t/ptr.t000644 025721 000024 00000000444 12107202245 015644 0ustar00darrenstaff000000 000000 #!/usr/bin/perl -w # vim: set ft=perl: use strict; use Test::More tests => 2; my ($res, @res); use_ok("Net::Nslookup"); $res = nslookup(host => "66.151.183.151", type => "PTR"); is($res, "ironmail1.boston.com", "nslookup(host => '66.151.183.151', type => PTR) -> ironmail1.boston.com"); Net-Nslookup-2.04/t/srv.t000644 025721 000024 00000000471 12107234147 015657 0ustar00darrenstaff000000 000000 #!/usr/bin/perl -w # vim: set ft=perl: use strict; use Test::More tests => 2; my (@res); use_ok("Net::Nslookup"); # Get A record @res = nslookup(host => "_jabber._tcp.gmail.com", type => "SRV"); ok(grep("xmpp-server.l.google.com", @res), "Jabber SRV record for gmail.com contains xmpp-server.l.google.com"); Net-Nslookup-2.04/lib/Net/000755 025721 000024 00000000000 12252340221 015677 5ustar00darrenstaff000000 000000 Net-Nslookup-2.04/lib/Net/Nslookup.pm000644 025721 000024 00000017052 12252340205 020056 0ustar00darrenstaff000000 000000 package Net::Nslookup; # ------------------------------------------------------------------- # Net::Nslookup - Provide nslookup(1)-like capabilities # Copyright (C) 2002-2013 darren chamberlain # # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License as # published by the Free Software Foundation; version 2. # # This program is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA # 02111-1307 USA # ------------------------------------------------------------------- use strict; use vars qw($VERSION $DEBUG @EXPORT $TIMEOUT $WIN32); use base qw(Exporter); $VERSION = "2.04"; @EXPORT = qw(nslookup); $DEBUG = 0 unless defined $DEBUG; $TIMEOUT = 15 unless defined $TIMEOUT; $WIN32 = $^O =~ /win32/i; use Exporter; my %_methods = qw( A address CNAME cname MX exchange NS nsdname PTR ptrdname TXT rdatastr SOA dummy SRV target ); # ---------------------------------------------------------------------- # nslookup(%args) # # Does the actual lookup, deferring to helper functions as necessary. # ---------------------------------------------------------------------- sub nslookup { my $options = isa($_[0], 'HASH') ? shift : @_ % 2 ? { 'host', @_ } : { @_ }; my ($term, $type, @answers); # Some reasonable defaults. $term = lc ($options->{'term'} || $options->{'host'} || $options->{'domain'} || return); $type = uc ($options->{'type'} || $options->{'qtype'} || "A"); $options->{'server'} ||= ''; $options->{'recurse'} ||= 0; $options->{'timeout'} = $TIMEOUT unless defined $options->{'timeout'}; $options->{'debug'} = $DEBUG unless defined $options->{'debug'}; eval { local $SIG{ALRM} = sub { die "alarm\n" }; alarm $options->{'timeout'} unless $WIN32; my $meth = $_methods{ $type } || die "Unknown type '$type'"; my $res = ns($options->{'server'}); if ($options->{'debug'}) { warn "Performing `$type' lookup on `$term'\n"; } if (my $q = $res->search($term, $type)) { if ('SOA' eq $type) { my $a = ($q->answer)[0]; @answers = (join " ", map { $a->$_ } qw(mname rname serial refresh retry expire minimum)); } else { @answers = map { $_->$meth() } grep { $_->type eq $type } $q->answer; } # If recurse option is set, for NS, MX, and CNAME requests, # do an A lookup on the result. False by default. if ($options->{'recurse'} && (('NS' eq $type) || ('MX' eq $type) || ('CNAME' eq $type) )) { @answers = map { nslookup( host => $_, type => "A", server => $options->{'server'}, debug => $options->{'debug'} ); } @answers; } } alarm 0 unless $WIN32; }; if ($@) { die "nslookup error: $@" unless $@ eq "alarm\n"; warn qq{Timeout: nslookup("type" => "$type", "host" => "$term")}; } return $answers[0] if (@answers == 1); return (wantarray) ? @answers : $answers[0]; } { my %res; sub ns { my $server = shift || ""; unless (defined $res{$server}) { require Net::DNS; import Net::DNS; $res{$server} = Net::DNS::Resolver->new; # $server might be empty if ($server) { if (ref($server) eq 'ARRAY') { $res{$server}->nameservers(@$server); } else { $res{$server}->nameservers($server); } } } return $res{$server}; } } sub isa { &UNIVERSAL::isa } 1; __END__ =head1 NAME Net::Nslookup - Provide nslookup(1)-like capabilities =head1 SYNOPSIS use Net::Nslookup; my @addrs = nslookup $host; my @mx = nslookup(type => "MX", domain => "perl.org"); =head1 DESCRIPTION C provides the capabilities of the standard UNIX command line tool F. C is a wonderful and full featured module, but quite often, all you need is `nslookup $host`. This module provides that functionality. C exports a single function, called C. C can be used to retrieve A, PTR, CNAME, MX, NS, SOA, TXT, and SRV records. my $a = nslookup(host => "use.perl.org", type => "A"); my @mx = nslookup(domain => "perl.org", type => "MX"); my @ns = nslookup(domain => "perl.org", type => "NS"); my $name = nslookup(host => "206.33.105.41", type => "PTR"); my @srv = nslookup(term => "_jabber._tcp.gmail.com", type => "SRV"); C takes a hash of options, one of which should be I, and performs a DNS lookup on that term. The type of lookup is determined by the I argument. If I is specified (it should be an IP address, or a reference to an array of IP addresses), that server(s) will be used for lookups. If only a single argument is passed in, the type defaults to I, that is, a normal A record lookup. If C is called in a list context, and there is more than one address, an array is returned. If C is called in a scalar context, and there is more than one address, C returns the first address. If there is only one address returned, then, naturally, it will be the only one returned, regardless of the calling context. I and I are synonyms for I, and can be used to make client code more readable. For example, use I when getting NS records, and use I for A records; both do the same thing. I should be a single IP address or a reference to an array of IP addresses: my @a = nslookup(host => 'example.com', server => '4.2.2.1'); my @a = nslookup(host => 'example.com', server => [ '4.2.2.1', '128.103.1.1' ]) By default, when doing CNAME, MX, and NS lookups, C returns names, not addresses. This is a change from versions prior to 2.0, which always tried to resolve names to addresses. Pass the I 1> flag to C to have it follow CNAME, MX, and NS lookups. Note that this usage of "recurse" is not consistent with the official DNS meaning of recurse. # returns soemthing like ("mail.example.com") my @mx = nslookup(domain => 'example.com', type => 'MX'); # returns soemthing like ("127.0.0.1") my @mx = nslookup(domain => 'example.com', type => 'MX', recurse => 1); SOA lookups return the SOA record in the same format as the `host` tool: print nslookup(domain => 'example.com', type => 'SOA'); dns1.icann.org. hostmaster.icann.org. 2011061433 7200 3600 1209600 3600 =head1 TIMEOUTS Lookups timeout after 15 seconds by default, but this can be configured by passing I X> to C. =head1 DEBUGGING Pass I 1> to C to emit debugging messages to STDERR. =head1 AUTHOR darren chamberlain