oss-fuzz/projects/pycparser/fuzz_c_parser.py

50 lines
1.3 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 pycparser
def TestOneInput(data):
fdp = atheris.FuzzedDataProvider(data)
lex_optimize = fdp.ConsumeBool()
yacc_debug = fdp.ConsumeBool()
yacc_optimize = fdp.ConsumeBool()
c_source = fdp.ConsumeUnicodeNoSurrogates(sys.maxsize)
_c_parser = pycparser.c_parser.CParser(
lex_optimize=lex_optimize,
yacc_debug=yacc_debug,
yacc_optimize=yacc_optimize)
try:
_c_parser.parse(
c_source,
''
)
except pycparser.c_parser.ParseError:
pass
except AssertionError:
pass
def main():
atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
atheris.Fuzz()
if __name__ == "__main__":
main()