// Copyright (c) 2018 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 <cstdint>

#include <vector>

#include "spirv-tools/libspirv.hpp"

#include "test/fuzzers/random_generator.h"

extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {

  if (size < 1) {

    return 0;

  }

  spvtools::fuzzers::RandomGenerator random_gen(data, size);

  const spv_context context = spvContextCreate(random_gen.GetTargetEnv());

  if (context == nullptr) {

    return 0;

  }

  std::vector<uint32_t> input;

  input.resize(size >> 2);

  size_t count = 0;

  for (size_t i = 0; (i + 3) < size; i += 4) {

    input[count++] = data[i] | (data[i + 1] << 8) | (data[i + 2] << 16) |

                     (data[i + 3]) << 24;

  }

  spvBinaryParse(context, nullptr, input.data(), input.size(), nullptr, nullptr,

                 nullptr);

  spvContextDestroy(context);

  return 0;

}