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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:59:48 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:59:48 +0000 |
commit | 3b9b6d0b8e7f798023c9d109c490449d528fde80 (patch) | |
tree | 2e1c188dd7b8d7475cd163de9ae02c428343669b /bin/tests/system/formerr/formerr.pl | |
parent | Initial commit. (diff) | |
download | bind9-0cd617f6bad00b68e380aeb0024ef4dc1985191c.tar.xz bind9-0cd617f6bad00b68e380aeb0024ef4dc1985191c.zip |
Adding upstream version 1:9.18.19.upstream/1%9.18.19upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | bin/tests/system/formerr/formerr.pl | 97 |
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; |