oss-fuzz/projects/msgpack-python/fuzz_unpack.py

51 lines
1.2 KiB
Python

#!/usr/bin/python3
# Copyright 2022 Google LLC
#
# 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
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import sys
import atheris
import io
import msgpack
def TestOneInput(data):
b = io.BytesIO(data)
r = None
try:
r = msgpack.unpack(b)
except (
# Catch exceptions as indicated:
# https://github.com/msgpack/msgpack-python/blob/main/msgpack/fallback.py#L110-L121
ValueError,
msgpack.exceptions.FormatError,
msgpack.exceptions.StackError,
msgpack.exceptions.ExtraData
) as e:
pass
if r is not None:
del r
del b
def main():
atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
atheris.Fuzz()
if __name__ == "__main__":
main()