mirror of https://github.com/google/oss-fuzz.git
54 lines
1.4 KiB
Python
54 lines
1.4 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 sys
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import atheris
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from coverage.exceptions import NotPython
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from coverage.parser import PythonParser
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def TestOneInput(data):
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"""Fuzzer for PythonParser"""
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fdp = atheris.FuzzedDataProvider(data)
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t = fdp.ConsumeUnicodeNoSurrogates(1024)
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if not t:
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return
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try:
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p = PythonParser(text = t)
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p.parse_source()
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except (NotPython, MemoryError) as e2:
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# Catch Memory error for stack overflows
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# Catch NotPython issues raised by coveragepy
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pass
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except ValueError as e:
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if "source code string cannot contain null bytes" in str(e):
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# Not interesting
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pass
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else:
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raise e
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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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