Add Exiv2 (#6186)

* Add Exiv2.

* Remove sanitizer flags so that OSS-Fuzz can insert its own.

* Using the fuzzer to create the seed corpus doesn't work with AFL.

* Only use libFuzzer

* Don't add files over 20KB to the corpus.

* Use ${LIB_FUZZING_ENGINE} when building the fuzz target.

projects/exiv2/Dockerfile

@@ -0,0 +1,22 @@
+# Copyright 2021 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
+
+RUN apt-get update && apt-get install -y cmake make ccache python3 libexpat1-dev zlib1g-dev libssh-dev libcurl4-openssl-dev libxml2-utils
+RUN git clone https://github.com/Exiv2/exiv2 exiv2
+WORKDIR exiv2
+
+COPY build.sh $SRC/

projects/exiv2/build.sh

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+#!/bin/bash -eu
+# Copyright 2021 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.
+#
+################################################################################
+
+pwd
+mkdir -p build
+cd build
+cmake -DEXIV2_ENABLE_PNG=ON -DEXIV2_ENABLE_WEBREADY=ON -DEXIV2_ENABLE_CURL=OFF -DEXIV2_ENABLE_BMFF=ON -DEXIV2_TEAM_WARNINGS_AS_ERRORS=ON -DBUILD_SHARED_LIBS=OFF -DCMAKE_CXX_COMPILER="${CXX}" -DCMAKE_CXX_FLAGS="${CXXFLAGS}" -DEXIV2_BUILD_FUZZ_TESTS=ON -DEXIV2_TEAM_OSS_FUZZ=ON -DLIB_FUZZING_ENGINE="${LIB_FUZZING_ENGINE}" ..
+make -j $(nproc)
+
+# Copy binary and dictionary to $OUT
+cp ./bin/fuzz-read-print-write $OUT
+cp ../fuzz/exiv2.dict $OUT/fuzz-read-print-write.dict
+
+# Initialize the corpus, using the files in test/data
+mkdir corpus
+for f in $(find ../test/data -type f -size -20k); do
+    s=$(sha1sum "$f" | awk '{print $1}')
+    cp $f corpus/$s
+done
+
+zip -j $OUT/fuzz-read-print-write.zip corpus/*

projects/exiv2/project.yaml

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+homepage: "https://www.exiv2.org"
+language: c++
+primary_contact: "[email protected]"
+sanitizers:
+  - address
+  - undefined
+architectures:
+  - x86_64
+main_repo: 'https://github.com/Exiv2/exiv2'