Add docker fetch fuzzer

Signed-off-by: AdamKorcz <adam@adalogics.com>

contrib/fuzz/oss_fuzz_build.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+#   Copyright The containerd Authors.
+
+#   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 "$(dirname "${BASH_SOURCE[0]}")"
+cd ../../
+
+compile_go_fuzzer github.com/containerd/containerd/contrib/fuzz FuzzFiltersParse fuzz_filters_parse
+compile_go_fuzzer github.com/containerd/containerd/contrib/fuzz FuzzPlatformsParse fuzz_platforms_parse
+
+mv contrib/fuzz/docker_fuzzer.go remotes/docker/
+compile_go_fuzzer github.com/containerd/containerd/remotes/docker FuzzFetcher fuzz_fetcher
+mv remotes/docker/docker_fuzzer.go contrib/fuzz/