/*

 * libgit2 packfile fuzzer target.

 *

 * Copyright (C) the libgit2 contributors. All rights reserved.

 *

 * This file is part of libgit2, distributed under the GNU GPL v2 with

 * a Linking Exception. For full terms see the included COPYING file.

 */

#include "git2.h"

#include "object.h"

#include "standalone_driver.h"

#define UNUSED(x) (void)(x)

int LLVMFuzzerInitialize(int *argc, char ***argv)

{

  UNUSED(argc);

  UNUSED(argv);

  if (git_libgit2_init() < 0)

    abort();

  return 0;

}

int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)

{

  const git_object_t types[] = {

    GIT_OBJECT_BLOB, GIT_OBJECT_TREE, GIT_OBJECT_COMMIT, GIT_OBJECT_TAG

  };

  git_object *object = NULL;

  size_t i;

  /*

   * Brute-force parse this as every object type. We want

   * to stress the parsing logic anyway, so this is fine

   * to do.

   */

  for (i = 0; i < ARRAY_SIZE(types); i++) {

    if (git_object__from_raw(&object, (const char *) data, size, types[i], GIT_OID_SHA1) < 0)

      continue;

    git_object_free(object);

    object = NULL;

  }

  return 0;

}