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diff --git a/bin/tests/system/resolver/ans2/ans.pl b/bin/tests/system/resolver/ans2/ans.pl
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+++ b/bin/tests/system/resolver/ans2/ans.pl
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+#!/usr/bin/perl
+#
+# Copyright (C) 2004, 2007 Internet Systems Consortium, Inc. ("ISC")
+# Copyright (C) 2000, 2001 Internet Software Consortium.
+#
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
+# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+# AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
+# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
+# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+# PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: ans.pl,v 1.10 2007/09/24 04:13:25 marka Exp $
+
+#
+# Ad hoc name server
+#
+
+use IO::File;
+use IO::Socket;
+use Net::DNS;
+use Net::DNS::Packet;
+
+my $sock = IO::Socket::INET->new(LocalAddr => "10.53.0.2",
+ LocalPort => 5300, Proto => "udp") or die "$!";
+
+my $pidf = new IO::File "ans.pid", "w" or die "cannot open pid file: $!";
+print $pidf "$$\n" or die "cannot write pid file: $!";
+$pidf->close or die "cannot close pid file: $!";
+sub rmpid { unlink "ans.pid"; exit 1; };
+
+$SIG{INT} = \&rmpid;
+$SIG{TERM} = \&rmpid;
+
+for (;;) {
+ $sock->recv($buf, 512);
+
+ print "**** request from " , $sock->peerhost, " port ", $sock->peerport, "\n";
+
+ my ($packet, $err) = new Net::DNS::Packet(\$buf, 0);
+ $err and die $err;
+
+ print "REQUEST:\n";
+ $packet->print;
+
+ $packet->header->qr(1);
+
+ my @questions = $packet->question;
+ my $qname = $questions[0]->qname;
+
+ if ($qname eq "cname1.example.com") {
+ # Data for the "cname + other data / 1" test
+ $packet->push("answer", new Net::DNS::RR("cname1.example.com 300 CNAME cname1.example.com"));
+ $packet->push("answer", new Net::DNS::RR("cname1.example.com 300 A 1.2.3.4"));
+ } elsif ($qname eq "cname2.example.com") {
+ # Data for the "cname + other data / 2" test: same RRs in opposite order
+ $packet->push("answer", new Net::DNS::RR("cname2.example.com 300 A 1.2.3.4"));
+ $packet->push("answer", new Net::DNS::RR("cname2.example.com 300 CNAME cname2.example.com"));
+ } else {
+ # Data for the "bogus referrals" test
+ $packet->push("authority", new Net::DNS::RR("below.www.example.com 300 NS ns.below.www.example.com"));
+ $packet->push("additional", new Net::DNS::RR("ns.below.www.example.com 300 A 10.53.0.3"));
+ }
+
+ $sock->send($packet->data);
+
+ print "RESPONSE:\n";
+ $packet->print;
+ print "\n";
+}