1 files changed, 97 insertions, 0 deletions
diff --git a/bin/tests/system/formerr/formerr.pl b/bin/tests/system/formerr/formerr.pl
new file mode 100644
index 0000000..fd7d298
--- /dev/null
+++ b/bin/tests/system/formerr/formerr.pl
@@ -0,0 +1,97 @@
+#!/usr/bin/perl
+
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# SPDX-License-Identifier: MPL-2.0
+#
+# 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 https://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 an arbitrary packet via UDP or TCP to an
+# arbitrary address and port.  The packet is specified in a file or on
+# the standard input, in the form of a series of bytes in hexadecimal.
+# Whitespace is ignored, as is anything following a '#' symbol.
+#
+# For example, the following input would generate normal query for
+# isc.org/NS/IN":
+#
+#     # QID:
+#     0c d8
+#     # header:
+#     01 00 00 01 00 00 00 00 00 00
+#     # qname isc.org:
+#     03 69 73 63 03 6f 72 67 00
+#     # qtype NS:
+#     00 02
+#     # qclass IN:
+#     00 01
+#
+# Note that we do not wait for a response for the server.  This is simply
+# a way of injecting arbitrary packets to test server resposnes.
+#
+# Usage: packet.pl [-a <address>] [-p <port>] [-t (udp|tcp)] [filename]
+#
+# If not specified, address defaults to 127.0.0.1, port to 53, protocol
+# to udp, and file to stdin.
+#
+# XXX: Doesn't support IPv6 yet
+
+require 5.006_001;
+
+use strict;
+use Getopt::Std;
+use IO::File;
+use IO::Socket;
+
+sub usage {
+    print ("Usage: packet.pl [-a address] [-p port] [file]\n");
+    exit 1;
+}
+
+my %options={};
+getopts("a:p:", \%options);
+
+my $addr = "127.0.0.1";
+$addr = $options{a} if defined $options{a};
+
+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;
+    $line =~ s/#.*$//;
+    $input .= $line;
+}
+
+$input =~ s/\s+//g;
+my $data = pack("H*", $input);
+my $len = length $data;
+
+my $output = unpack("H*", $data);
+print ("sending: $output\n");
+
+my $sock = IO::Socket::INET->new(PeerAddr => $addr, PeerPort => $port,
+				 Proto => "tcp") or die "$!";
+
+my $bytes;
+$bytes = $sock->syswrite(pack("n", $len), 2);
+$bytes = $sock->syswrite($data, $len);
+$bytes = $sock->sysread($data, 2);
+$len = unpack("n", $data);
+$bytes = $sock->sysread($data, $len);
+print "got: ", unpack("H*", $data). "\n";
+
+$sock->close;
+close $file;