thodg/libgit2/fuzzers/patch_parse_fuzzer.c

• Show log

  Commit

• Hash : 92e011a7
  Author :
  Date : 2019-10-15T16:22:35
  

  fuzzers: add a new fuzzer for patch parsing I was looking at this code anyway because the sr.ht people nerdsniped me, and it gave me that "I should fuzz this" feeling. So have a fuzzer!

Download

• fuzzers/patch_parse_fuzzer.c

• /*
   * libgit2 patch parser 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 "patch.h"
  #include "patch_parse.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)
  {
  	if (size) {
  		git_patch *patch = NULL;
  		git_patch_options opts = GIT_PATCH_OPTIONS_INIT;
  		opts.prefix_len = (uint32_t)data[0];
  		git_patch_from_buffer(&patch, (const char *)data + 1, size - 1,
  		                      &opts);
  		git_patch_free(patch);
  	}
  	return 0;
  }
  

Download