mirror of https://github.com/google/oss-fuzz.git
68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
#!/usr/bin/python3
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# Copyright 2022 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import os
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import sys
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import atheris
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import zipp
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import zipfile
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import io
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def gen_path(fdp):
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"""Generate a string with maximum 4 instances of /"""
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s1 = fdp.ConsumeUnicodeNoSurrogates(15)
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while s1.count("/") > 4:
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# Replace the first occurrence of /
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s1 = s1.replace("/", "a", 1)
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return s1
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def build_fixture(fdp):
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"""Generate a random zip structure"""
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data = io.BytesIO()
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zf = zipfile.ZipFile(data, "w")
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number_of_entries = fdp.ConsumeIntInRange(2, 10)
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for i in range(number_of_entries):
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zf.writestr(gen_path(fdp), fdp.ConsumeBytes(20))
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zf.filename = "fuzzGen.zip"
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return zf
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def TestOneInput(data):
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fdp = atheris.FuzzedDataProvider(data)
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try:
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zf = build_fixture(fdp)
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except:
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# On any issue we return
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return
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root = zipp.Path(zf)
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for elem in root.iterdir():
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# perform simple operations on the elem
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elem.is_dir()
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elem.is_file()
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def main():
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atheris.instrument_all()
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atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
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atheris.Fuzz()
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if __name__ == "__main__":
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main()
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