1 files changed, 79 insertions, 0 deletions
diff --git a/contrib/dissector_fuzz.sh b/contrib/dissector_fuzz.sh
new file mode 100755
index 0000000..40b6170
--- /dev/null
+++ b/contrib/dissector_fuzz.sh
@@ -0,0 +1,79 @@
+#!/usr/bin/env bash
+# -*- coding: utf-8 -*-
+#
+# dissector_fuzz.sh -- fuzz test netsniff-ng's dissector and pcap io methods
+#		       with shitty pcap example files from the Wireshark archive
+#
+# Copyright (C) 2012 Daniel Borkmann <borkmann@redhat.com>
+# Copyright (C) 2012 Stefan Seering <sseerin@imn.htwk-leipzig.de>
+#
+# Note: build and *install* the toolkit first before running this script!
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+
+set -u
+
+if [ ${BASH_VERSINFO} -lt 3 ] ; then
+	echo 'Error: Your bash need to be version 3 or newer. Exiting.'
+	exit 1 # operators like =~ produce errors silently in old bash versions, so exit here
+fi
+
+archive='ftp://wireshark.org/automated/captures/'
+show_output='' # empty string evaluates to false
+run_through='' # empty string evaluates to false
+count_cores=0
+count_files=0
+netsniff_ng_opts=''
+
+if [ $# -gt 0 ] ; then
+	if [ "$1" = '-h' -o "$1" = '--help' -o "$1" = '--usage' ] ; then
+		echo 'Usage: dissector_fuzz [-s (show netsniff-ng output, default: no)] [-r (keep running on errors, default: no)] [netsniff-ng long-args]'
+		exit 0
+	fi
+
+	for opt in $@ ; do
+		if [ "${opt}" = '-s' ] ; then
+			show_output='true'
+		elif [ "${opt}" = '-r' ] ; then
+			run_through='true'
+		else
+			netsniff_ng_opts="${netsniff_ng_opts} ${opt}";
+		fi
+	done
+fi
+
+mkdir -p fuzzing
+cd fuzzing
+wget -r -Nc -np -nd -A.pcap "$archive"  |& grep -E "%|^--"
+ulimit -c unlimited
+rm -f core
+for file in *.pcap
+do
+	echo "Testing file $file ..."
+	if [ $show_output ]; then
+		netsniff-ng --in "$file" "${netsniff_ng_opts}"
+	else
+		netsniff-ng --in "$file" "${netsniff_ng_opts}" > /dev/null
+	fi
+	if [ -e core ]; then
+		echo "Fuck, core dumped on $file!"
+		let count_cores=count_cores+1
+		if [ $run_through ]; then
+			rm core
+		else
+			exit
+		fi
+	fi
+done
+
+if which cowsay > /dev/null ; then
+	echo_cmd='cowsay'
+else
+	echo_cmd='echo'
+fi
+
+${echo_cmd} 'Your fuckup Score'
+echo " * tested pcaps: $count_files"
+echo " * core dumps:   $count_cores"