oss-fuzz/projects/netaddr-py/fuzz_parsing.py

54 lines
1.4 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
with atheris.instrument_imports():
from netaddr import IPAddress, IPNetwork, IPRange, AddrFormatError
def TestOneInput(data):
fdp = atheris.FuzzedDataProvider(data)
s1 = fdp.ConsumeString(sys.maxsize)
s2 = fdp.ConsumeString(sys.maxsize)
try:
IPAddress(s1)
IPNetwork(s1)
IPRange(s1,s2)
except AddrFormatError as e:
None
except ValueError as e:
msgs = [
"is an invalid IP version",
"netmasks or subnet"
]
found = False
for msg in msgs:
if msg in str(e):
found = True
if not found:
raise e
def main():
atheris.instrument_all()
atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True)
atheris.Fuzz()
if __name__ == "__main__":
main()