/*

 * bdiff.cc - fuzzer harness for bdiff.c

 *

 * Copyright 2018, Google Inc.

 *

 * This software may be used and distributed according to the terms of

 * the GNU General Public License, incorporated herein by reference.

 */

#include <memory>

#include <stdlib.h>

#include "FuzzedDataProvider.h"

extern "C" {

#include "bdiff.h"

extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)

{

  return 0;

}

int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)

{

  FuzzedDataProvider provider(Data, Size);

  std::string left = provider.ConsumeRandomLengthString(Size);

  std::string right = provider.ConsumeRemainingBytesAsString();

  struct bdiff_line *a, *b;

  int an = bdiff_splitlines(left.c_str(), left.size(), &a);

  int bn = bdiff_splitlines(right.c_str(), right.size(), &b);

  struct bdiff_hunk l;

  bdiff_diff(a, an, b, bn, &l);

  free(a);

  free(b);

  bdiff_freehunks(l.next);

  return 0; // Non-zero return values are reserved for future use.

}

} // extern "C"