test/dissector_fuzz.sh

   1 #!/usr/bin/env bash
   2
   3 # Note: build and _install_ the toolkit first!
   4
   5 set -u
   6
   7 if [ ${BASH_VERSINFO} -lt 3 ] ; then
   8         echo 'Error: Your bash need to be version 3 or newer. Exiting.'
   9         exit 1 # operators like =~ produce errors silently in old bash versions, so exit here
  10 fi
  11
  12 archive='ftp://wireshark.org/automated/captures/'
  13 show_output='' # empty string evaluates to false
  14 run_through='' # empty string evaluates to false
  15 count_cores=0
  16 count_files=0
  17 netsniff_ng_opts=''
  18
  19 if [ $# -gt 0 ] ; then
  20         if [ "$1" = '-h' -o "$1" = '--help' -o "$1" = '--usage' ] ; then
  21                 echo 'Usage: dissector_fuzz [-s (show netsniff-ng output, default: no)] [-r (keep running on errors, default: no)] [netsniff-ng long-args]'
  22                 exit 0
  23         fi
  24
  25         for opt in $@ ; do
  26                 if [ "${opt}" = '-s' ] ; then
  27                         show_output='true'
  28                 elif [ "${opt}" = '-r' ] ; then
  29                         run_through='true'
  30                 else
  31                         netsniff_ng_opts="${netsniff_ng_opts} ${opt}";
  32                 fi
  33         done
  34 fi
  35
  36 mkdir -p fuzzing
  37 cd fuzzing
  38 wget -r -Nc -np -nd -A.pcap "$archive"  |& grep -E "%|^--"
  39 ulimit -c unlimited
  40 rm -f core
  41 for file in *.pcap
  42 do
  43         echo "Testing file $file ..."
  44         if [ $show_output ]; then
  45                 netsniff-ng --in "$file" "${netsniff_ng_opts}"
  46         else
  47                 netsniff-ng --in "$file" "${netsniff_ng_opts}" > /dev/null
  48         fi
  49         if [ -e core ]; then
  50                 echo "Fuck, core dumped on $file!"
  51                 let count_cores=count_cores+1
  52                 if [ $run_through ]; then
  53                         rm core
  54                 else
  55                         exit
  56                 fi
  57         fi
  58 done
  59
  60 if which cowsay > /dev/null ; then
  61         echo_cmd='cowsay'
  62 else
  63         echo_cmd='echo'
  64 fi
  65
  66 ${echo_cmd} 'Your fuckup Score'
  67 echo " * tested pcaps: $count_files"
  68 echo " * core dumps:   $count_cores"