oss-fuzz/projects/gitpython/fuzz_tree.py

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#!/usr/bin/python3
# Copyright 2023 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 io
import sys
import shutil
import atheris
from git.objects import Tree
from git import Repo
def TestOneInput(data):
fdp = atheris.FuzzedDataProvider(data)
git_dir = "/tmp/.git"
head_file = os.path.join(git_dir, "HEAD")
refs_dir = os.path.join(git_dir, "refs")
common_dir = os.path.join(git_dir, "commondir")
objects_dir = os.path.join(git_dir, "objects")
if os.path.isdir(git_dir):
shutil.rmtree(git_dir)
os.mkdir(git_dir)
with open(head_file, "w") as f:
f.write(fdp.ConsumeUnicodeNoSurrogates(1024))
os.mkdir(refs_dir)
os.mkdir(common_dir)
os.mkdir(objects_dir)
_repo = Repo("/tmp/")
fuzz_tree = Tree(_repo, Tree.NULL_BIN_SHA, 0, "")
try:
fuzz_tree._deserialize(io.BytesIO(data))
except IndexError:
pass
def main():
atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput)
atheris.Fuzz()
if __name__ == "__main__":
main()