compiler-rt/test/fuzzer/EquivalenceATest.cpp

// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include <stddef.h>
#include <stdint.h>
#include <stdio.h>

// Test for libFuzzer's "equivalence" fuzzing, part A.
extern "C" void LLVMFuzzerAnnounceOutput(const uint8_t *Data, size_t Size);
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
  // fprintf(stderr, "A %zd\n", Size);
  uint8_t Result[50];
  if (Size > 50) Size = 50;
  for (size_t i = 0; i < Size; i++)
    Result[Size - i - 1] = Data[i];
  LLVMFuzzerAnnounceOutput(Result, Size);
  return 0;
}