fuzzers/patch_parse_fuzzer.c

   1 /*
   2  * libgit2 patch parser fuzzer target.
   3  *
   4  * Copyright (C) the libgit2 contributors. All rights reserved.
   5  *
   6  * This file is part of libgit2, distributed under the GNU GPL v2 with
   7  * a Linking Exception. For full terms see the included COPYING file.
   8  */
   9
  10 #include "git2.h"
  11 #include "patch.h"
  12 #include "patch_parse.h"
  13
  14 #define UNUSED(x) (void)(x)
  15
  16 int LLVMFuzzerInitialize(int *argc, char ***argv)
  17 {
  18         UNUSED(argc);
  19         UNUSED(argv);
  20
  21         if (git_libgit2_init() < 0)
  22                 abort();
  23
  24         return 0;
  25 }
  26
  27 int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
  28 {
  29         if (size) {
  30                 git_patch *patch = NULL;
  31                 git_patch_options opts = GIT_PATCH_OPTIONS_INIT;
  32                 opts.prefix_len = (uint32_t)data[0];
  33                 git_patch_from_buffer(&patch, (const char *)data + 1, size - 1,
  34                                       &opts);
  35                 git_patch_free(patch);
  36         }
  37         return 0;
  38 }