1 files changed, 57 insertions, 0 deletions
diff --git a/projects/jsonnet/convert_jsonnet_fuzzer_regular.cc b/projects/jsonnet/convert_jsonnet_fuzzer_regular.cc
new file mode 100644
index 00000000..034b9ed3
--- /dev/null
+++ b/projects/jsonnet/convert_jsonnet_fuzzer_regular.cc
@@ -0,0 +1,57 @@
+// Copyright 2022 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.
+//
+////////////////////////////////////////////////////////////////////////////////
+#include <cstddef>
+#include <cstdint>
+#include <cstring>
+#include <string>
+
+extern "C" {
+#include "libjsonnet.h"
+}
+
+char* ImportCallback(void* ctx, const char* base, const char* rel,
+                     char** found_here, int* success) {
+  // Don't load file and mark it as failure.
+  *success = 0;
+  char* res = jsonnet_realloc(static_cast<struct JsonnetVm*>(ctx), nullptr, 1);
+  res[0] = 0;
+  return res;
+}
+
+std::string ConvertJsonnetToJson(const std::string& jsonnet) {
+  JsonnetVm* jvm = jsonnet_make();
+  jsonnet_import_callback(jvm, ImportCallback, jvm);
+  int error = 0;
+  char* res =
+      jsonnet_evaluate_snippet(jvm, /*filename=*/"", jsonnet.c_str(), &error);
+
+  std::string json;
+  if (error == 0 && res != nullptr) {
+    json = res;
+  }
+
+  if (res) {
+    jsonnet_realloc(jvm, res, 0);
+  }
+  jsonnet_destroy(jvm);
+  return json;
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  std::string fuzz_jsonnet(reinterpret_cast<const char*>(data), size);
+  ConvertJsonnetToJson(fuzz_jsonnet);
+  return 0;
+}