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afl-plot
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afl-plot
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#!/bin/sh
#
# american fuzzy lop - Advanced Persistent Graphing
# -------------------------------------------------
#
# Written and maintained by Michal Zalewski <[email protected]>
# Based on a design & prototype by Michael Rash.
#
# Copyright 2014, 2015 Google LLC All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
echo "progress plotting utility for afl-fuzz by <[email protected]>"
echo
if [ ! "$#" = "2" ]; then
cat 1>&2 <<_EOF_
This program generates gnuplot images from afl-fuzz output data. Usage:
$0 afl_state_dir graph_output_dir
The afl_state_dir parameter should point to an existing state directory for any
active or stopped instance of afl-fuzz; while graph_output_dir should point to
an empty directory where this tool can write the resulting plots to.
The program will put index.html and three PNG images in the output directory;
you should be able to view it with any web browser of your choice.
_EOF_
exit 1
fi
if [ "$AFL_ALLOW_TMP" = "" ]; then
echo "$1" | grep -qE '^(/var)?/tmp/'
T1="$?"
echo "$2" | grep -qE '^(/var)?/tmp/'
T2="$?"
if [ "$T1" = "0" -o "$T2" = "0" ]; then
echo "[-] Error: this script shouldn't be used with shared /tmp directories." 1>&2
exit 1
fi
fi
if [ ! -f "$1/plot_data" ]; then
echo "[-] Error: input directory is not valid (missing 'plot_data')." 1>&2
exit 1
fi
BANNER="`cat "$1/fuzzer_stats" | grep '^afl_banner ' | cut -d: -f2- | cut -b2-`"
test "$BANNER" = "" && BANNER="(none)"
GNUPLOT=`which gnuplot 2>/dev/null`
if [ "$GNUPLOT" = "" ]; then
echo "[-] Error: can't find 'gnuplot' in your \$PATH." 1>&2
exit 1
fi
mkdir "$2" 2>/dev/null
if [ ! -d "$2" ]; then
echo "[-] Error: unable to create the output directory - pick another location." 1>&2
exit 1
fi
rm -f "$2/high_freq.png" "$2/low_freq.png" "$2/exec_speed.png"
mv -f "$2/index.html" "$2/index.html.orig" 2>/dev/null
echo "[*] Generating plots..."
(
cat <<_EOF_
set terminal png truecolor enhanced size 1000,300 butt
set output '$2/high_freq.png'
set xdata time
set timefmt '%s'
set format x "%b %d\n%H:%M"
set tics font 'small'
unset mxtics
unset mytics
set grid xtics linetype 0 linecolor rgb '#e0e0e0'
set grid ytics linetype 0 linecolor rgb '#e0e0e0'
set border linecolor rgb '#50c0f0'
set tics textcolor rgb '#000000'
set key outside
set autoscale xfixmin
set autoscale xfixmax
plot '$1/plot_data' using 1:4 with filledcurve x1 title 'total paths' linecolor rgb '#000000' fillstyle transparent solid 0.2 noborder, \\
'' using 1:3 with filledcurve x1 title 'current path' linecolor rgb '#f0f0f0' fillstyle transparent solid 0.5 noborder, \\
'' using 1:5 with lines title 'pending paths' linecolor rgb '#0090ff' linewidth 3, \\
'' using 1:6 with lines title 'pending favs' linecolor rgb '#c00080' linewidth 3, \\
'' using 1:2 with lines title 'cycles done' linecolor rgb '#c000f0' linewidth 3
set terminal png truecolor enhanced size 1000,200 butt
set output '$2/low_freq.png'
plot '$1/plot_data' using 1:8 with filledcurve x1 title '' linecolor rgb '#c00080' fillstyle transparent solid 0.2 noborder, \\
'' using 1:8 with lines title ' uniq crashes' linecolor rgb '#c00080' linewidth 3, \\
'' using 1:9 with lines title 'uniq hangs' linecolor rgb '#c000f0' linewidth 3, \\
'' using 1:10 with lines title 'levels' linecolor rgb '#0090ff' linewidth 3
set terminal png truecolor enhanced size 1000,200 butt
set output '$2/exec_speed.png'
plot '$1/plot_data' using 1:11 with filledcurve x1 title '' linecolor rgb '#0090ff' fillstyle transparent solid 0.2 noborder, \\
'$1/plot_data' using 1:11 with lines title ' execs/sec' linecolor rgb '#0090ff' linewidth 3 smooth bezier;
_EOF_
) | gnuplot
if [ ! -s "$2/exec_speed.png" ]; then
echo "[-] Error: something went wrong! Perhaps you have an ancient version of gnuplot?" 1>&2
exit 1
fi
echo "[*] Generating index.html..."
cat >"$2/index.html" <<_EOF_
<table style="font-family: 'Trebuchet MS', 'Tahoma', 'Arial', 'Helvetica'">
<tr><td style="width: 18ex"><b>Banner:</b></td><td>$BANNER</td></tr>
<tr><td><b>Directory:</b></td><td>$1</td></tr>
<tr><td><b>Generated on:</b></td><td>`date`</td></tr>
</table>
<p>
<img src="high_freq.png" width=1000 height=300><p>
<img src="low_freq.png" width=1000 height=200><p>
<img src="exec_speed.png" width=1000 height=200>
_EOF_
# Make it easy to remotely view results when outputting directly to a directory
# served by Apache or other HTTP daemon. Since the plots aren't horribly
# sensitive, this seems like a reasonable trade-off.
chmod 755 "$2"
chmod 644 "$2/high_freq.png" "$2/low_freq.png" "$2/exec_speed.png" "$2/index.html"
echo "[+] All done - enjoy your charts!"
exit 0