oss-fuzz/projects/olefile/fuzz_reader.py

49 lines
1.4 KiB
Python

# 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 olefile
def TestOneInput(data):
fuzz_olefile = "tmp_f.doc"
with open(fuzz_olefile, "wb") as f:
f.write(data)
if olefile.isOleFile(fuzz_olefile):
try:
with olefile.OleFileIO(fuzz_olefile) as ole:
pass
except (olefile.olefile.OleFileError, IOError) as e:
pass
try:
# Ensure the file gets closed, however the file should usually be closed
# by olefile itself, so ignore FileNotFoundError if raised.
os.remove(fuzz_olefile)
except FileNotFoundError:
pass
def main():
atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
atheris.Fuzz()
if __name__ == "__main__":
main()