[Librdkafka] Initial integration (#4652)

* Added initial integration of librdkafka.'

* librdkafka: updated primary email and auto_ccs.

* librdkafka: fix build script.

projects/librdkafka/Dockerfile

@@ -0,0 +1,21 @@
+# Copyright 2020 Google Inc.
+#
+# 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 make cmake flex bison
+RUN git clone https://github.com/edenhill/librdkafka
+
+WORKDIR $SRC
+COPY build.sh $SRC/

projects/librdkafka/build.sh

@@ -0,0 +1,32 @@
+#!/bin/bash -eu
+# Copyright 2020 Google Inc.
+#
+# 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.
+#
+################################################################################
+cd librdkafka
+./configure --install-deps --disable-regex-ext
+make
+
+export LIBZSTD=$PWD/mklove/deps/dest/libzstd/usr/lib/libzstd.a
+export LIBZ_LIB=$PWD/mklove/deps/dest/zlib/usr/lib/libz.a
+
+cd tests
+echo $PWD
+ls -al 
+$CC -g -fPIC $CFLAGS -I../src -c ./fuzzers/fuzz_regex.c -o fuzz_regex.o
+$CXX $CXXFLAGS $LIB_FUZZING_ENGINE -rdynamic fuzz_regex.o -o fuzzer \
+    ../src/librdkafka.a -lm ${LIBZSTD} -lsasl2 -lssl -lcrypto \
+    -lcrypto ${LIBZ_LIB} -ldl -lpthread -lrt
+
+cp fuzzer $OUT/fuzz_regex

projects/librdkafka/project.yaml

@@ -0,0 +1,5 @@
+homepage: "https://github.com/edenhill/librdkafka"
+primary_contact: "rdkafka@edenhill.se"
+language: c++
+auto_ccs:
+  - "david@adalogics.com"