Onboarding new ZetaSQL fuzzers (#4095)

* Enable UBSAN

* Added a structure aware fuzzer

* Revert "Enable UBSAN" and explicitly enable it in
project.yaml

This reverts commit de66864567.

* Amend UBSAN commit

* Disable MSan

Co-authored-by: Abhishek Arya <inferno@chromium.org>

projects/zetasql/Dockerfile

@@ -25,6 +25,7 @@ RUN curl https://bazel.build/bazel-release.pub.gpg | apt-key add - && \
 
 RUN apt-get update && apt-get -y install bazel-1.0.0
 
-RUN git clone --depth 1 https://github.com/googleinterns/zetasql-fuzzing.git zetasql
+RUN git clone -b arithmetic_fuzzer --depth 1 \
+    https://github.com/googleinterns/zetasql-fuzzing.git zetasql
 COPY build.sh $SRC/
 WORKDIR zetasql

projects/zetasql/build.sh

@@ -49,10 +49,10 @@ fi
 )"
 
 # Temporary hack, see https://github.com/google/oss-fuzz/issues/383
-readonly NO_VPTR='--copt=-fno-sanitize=vptr --linkopt=-fno-sanitize=vptr'
+readonly NO_VPTR='--copt=-fno-sanitize=vptr --linkopt=-fno-sanitize=vptr --cxxopt=-fno-sanitize=vptr'
 
-declare FUZZER_PATH="zetasql/fuzzing/simple_evaluator_fuzzer"
-declare FUZZ_TARGET="//zetasql/fuzzing:simple_evaluator_fuzzer"
+declare FUZZER_PATH=$(for path in $(find zetasql/fuzzing -name *_fuzzer.cc); do echo "${path%.*}"; done)
+declare FUZZ_TARGET="$(for fuzzer in ${FUZZER_PATH}; do echo "//$(dirname ${fuzzer}):$(basename ${fuzzer})"; done)"
 
 # Build fuzz target
 # see https://google.github.io/oss-fuzz/further-reading/fuzzer-environment/
@@ -109,7 +109,10 @@ cp -r /usr/share/zoneinfo $OUT/data/
 ln -sf Etc/UTC $OUT/data/zoneinfo/localtime
 
 # Move out fuzz target
-cp bazel-bin/"${FUZZER_PATH}" "${OUT}"/
+for fuzzer in ${FUZZER_PATH};
+do
+    cp bazel-bin/"${fuzzer}" "${OUT}"/
+done
 
 # Cleanup bazel- symlinks to avoid oss-fuzz trying to copy out of the build
 # cache.

projects/zetasql/project.yaml

@@ -6,4 +6,4 @@ auto_ccs:
  - "shumway@google.com"
 sanitizers:
  - address
- - memory
+ - undefined