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-rw-r--r--bin/tests/system/ditch.pl85
1 files changed, 85 insertions, 0 deletions
diff --git a/bin/tests/system/ditch.pl b/bin/tests/system/ditch.pl
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+++ b/bin/tests/system/ditch.pl
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+#!/usr/bin/perl
+#
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+# This is a tool for sending queries via UDP to specified address and
+# port, then exiting without waiting for a response.
+#
+# Usage: ditch.pl [-s <address>] [-p <port>] [filename]
+#
+# Input (in filename, if specified, otherwise stdin) is a series of one
+# or more DNS names and types to send as queries, e.g.:
+#
+# www.example.com A
+# www.example.org MX
+#
+# If not specified, address defaults to 127.0.0.1, port to 53.
+
+require 5.006.001;
+
+use strict;
+use Getopt::Std;
+use Net::DNS;
+use Net::DNS::Packet;
+use IO::File;
+use IO::Socket;
+
+sub usage {
+ print ("Usage: ditch.pl [-s address] [-p port] [file]\n");
+ exit 1;
+}
+
+my %options={};
+getopts("s:p:t:", \%options);
+
+my $addr = "127.0.0.1";
+$addr = $options{s} if defined $options{s};
+
+my $port = 53;
+$port = $options{p} if defined $options{p};
+
+my $file = "STDIN";
+if (@ARGV >= 1) {
+ my $filename = shift @ARGV;
+ open FH, "<$filename" or die "$filename: $!";
+ $file = "FH";
+}
+
+my $input = "";
+while (defined(my $line = <$file>) ) {
+ chomp $line;
+ next if ($line =~ m/^ *#/);
+ my @tokens = split (' ', $line);
+
+ my $packet;
+ if ($Net::DNS::VERSION > 0.68) {
+ $packet = new Net::DNS::Packet();
+ $@ and die $@;
+ } else {
+ my $err;
+ ($packet, $err) = new Net::DNS::Packet();
+ $err and die $err;
+ }
+
+ my $q = new Net::DNS::Question($tokens[0], $tokens[1], "IN");
+ $packet->header->rd(1);
+ $packet->push(question => $q);
+
+ my $sock = IO::Socket::INET->new(PeerAddr => $addr, PeerPort => $port,
+ Proto => "udp",) or die "$!";
+
+ my $bytes = $sock->send($packet->data);
+ #print ("sent $bytes bytes to $addr:$port:\n");
+ #print (" ", unpack("H* ", $packet->data), "\n");
+
+ $sock->close;
+}
+
+close $file;