Adds golang project coredns (#3743)

* Adds golang project coredns

* Use go-fuzz with absolute package path

projects/go-coredns/Dockerfile

@@ -0,0 +1,22 @@
+# 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
+MAINTAINER miek@miek.nl
+RUN git clone --depth 1 https://github.com/coredns/coredns coredns
+
+COPY build.sh $SRC/
+WORKDIR $SRC/

projects/go-coredns/build.sh

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+#!/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.
+#
+################################################################################
+
+# Same as usual except for added -tags gofuzz.
+function compile_fuzzer {
+  path=$1
+  function=$2
+  fuzzer=$3
+
+  # Compile and instrument all Go files relevant to this fuzz target.
+  go-fuzz -func $function -o $fuzzer.a $path
+
+  # Link Go code ($fuzzer.a) with fuzzing engine to produce fuzz target binary.
+  $CXX $CXXFLAGS $LIB_FUZZING_ENGINE $fuzzer.a -o $OUT/$fuzzer
+}
+
+cd coredns
+#make
+ls plugin/*/fuzz.go | while read target
+do
+    fuzzed_plugin=`echo $target | cut -d'/' -f 2`
+    compile_fuzzer github.com/coredns/coredns/plugin/$fuzzed_plugin Fuzz fuzz_plugin_$fuzzed_plugin
+done
+
+compile_fuzzer github.com/coredns/coredns/test Fuzz fuzz_core

projects/go-coredns/project.yaml

@@ -0,0 +1,10 @@
+homepage: "https://coredns.io"
+primary_contact: "security@coredns.io"
+auto_ccs :
+- "miek@miek.nl"
+- "p.antoine@catenacyber.fr"
+language: go
+fuzzing_engines:
+- libfuzzer
+sanitizers:
+- address