diff --git a/projects/chardet/Dockerfile b/projects/chardet/Dockerfile new file mode 100644 index 000000000..48f67c1f9 --- /dev/null +++ b/projects/chardet/Dockerfile @@ -0,0 +1,18 @@ +#!/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. +FROM gcr.io/oss-fuzz-base/base-builder-python +RUN git clone https://github.com/erikrose/chardet chardet +COPY *.sh *py $SRC/ +WORKDIR $SRC/chardet diff --git a/projects/chardet/build.sh b/projects/chardet/build.sh new file mode 100644 index 000000000..338e12e52 --- /dev/null +++ b/projects/chardet/build.sh @@ -0,0 +1,22 @@ +#!/bin/bash -eu +# 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. +# +################################################################################ +pip3 install . + +# Build fuzzers in $OUT. +for fuzzer in $(find $SRC -name 'fuzz_*.py'); do + compile_python_fuzzer $fuzzer +done diff --git a/projects/chardet/fuzz_detector.py b/projects/chardet/fuzz_detector.py new file mode 100644 index 000000000..f93af7e6a --- /dev/null +++ b/projects/chardet/fuzz_detector.py @@ -0,0 +1,43 @@ +#!/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 chardet + + +def TestOneInput(data): + fdp = atheris.FuzzedDataProvider(data) + + # General detection. + chardet.detect(data) + + # Incremental feeding> + detector = chardet.universaldetector.UniversalDetector() + for b in data: + detector.feed(b) + if detector.done: + break + detector.close() + res = detector.result + + +def main(): + atheris.instrument_all() + atheris.Setup(sys.argv, TestOneInput, enable_python_coverage=True) + atheris.Fuzz() + + +if __name__ == "__main__": + main() diff --git a/projects/chardet/project.yaml b/projects/chardet/project.yaml new file mode 100644 index 000000000..b6722e9d9 --- /dev/null +++ b/projects/chardet/project.yaml @@ -0,0 +1,10 @@ +fuzzing_engines: +- libfuzzer +homepage: https://github.com/erikrose/chardet +language: python +main_repo: https://github.com/erikrose/chardet +sanitizers: +- address +- undefined +vendor_ccs: +- david@adalogics.com