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Diffstat (limited to 'examples/python_mutators/example.py')
-rw-r--r-- | examples/python_mutators/example.py | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/examples/python_mutators/example.py b/examples/python_mutators/example.py new file mode 100644 index 00000000..d32a7eb2 --- /dev/null +++ b/examples/python_mutators/example.py @@ -0,0 +1,103 @@ +#!/usr/bin/env python +# encoding: utf-8 +''' +Example Python Module for AFLFuzz + +@author: Christian Holler (:decoder) + +@license: + +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 http://mozilla.org/MPL/2.0/. + +@contact: choller@mozilla.com +''' + +import random + +def init(seed): + ''' + Called once when AFLFuzz starts up. Used to seed our RNG. + + @type seed: int + @param seed: A 32-bit random value + ''' + random.seed(seed) + return 0 + +def fuzz(buf, add_buf): + ''' + Called per fuzzing iteration. + + @type buf: bytearray + @param buf: The buffer that should be mutated. + + @type add_buf: bytearray + @param add_buf: A second buffer that can be used as mutation source. + + @rtype: bytearray + @return: A new bytearray containing the mutated data + ''' + ret = bytearray(buf) + # Do something interesting with ret + + return ret + +# Uncomment and implement the following methods if you want to use a custom +# trimming algorithm. See also the documentation for a better API description. + +# def init_trim(buf): +# ''' +# Called per trimming iteration. +# +# @type buf: bytearray +# @param buf: The buffer that should be trimmed. +# +# @rtype: int +# @return: The maximum number of trimming steps. +# ''' +# global ... +# +# # Initialize global variables +# +# # Figure out how many trimming steps are possible. +# # If this is not possible for your trimming, you can +# # return 1 instead and always return 0 in post_trim +# # until you are done (then you return 1). +# +# return steps +# +# def trim(): +# ''' +# Called per trimming iteration. +# +# @rtype: bytearray +# @return: A new bytearray containing the trimmed data. +# ''' +# global ... +# +# # Implement the actual trimming here +# +# return bytearray(...) +# +# def post_trim(success): +# ''' +# Called after each trimming operation. +# +# @type success: bool +# @param success: Indicates if the last trim operation was successful. +# +# @rtype: int +# @return: The next trim index (0 to max number of steps) where max +# number of steps indicates the trimming is done. +# ''' +# global ... +# +# if not success: +# # Restore last known successful input, determine next index +# else: +# # Just determine the next index, based on what was successfully +# # removed in the last step +# +# return next_index |