thodg/libgit2/fuzzers/standalone_driver.c

• Show log

  Commit

• Hash : e54343a4
  Author :
  Date : 2019-06-29T09:17:32
  

  fileops: rename to "futils.h" to match function signatures
  
  Our file utils functions all have a "futils" prefix, e.g.
  `git_futils_touch`. One would thus naturally guess that their
  definitions and implementation would live in files "futils.h" and
  "futils.c", respectively, but in fact they live in "fileops.h".
  
  Rename the files to match expectations.
  

Download

• fuzzers/standalone_driver.c

• /*
   * 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 <stdio.h>
  
  #include "git2.h"
  #include "futils.h"
  #include "path.h"
  
  extern int LLVMFuzzerTestOneInput(const unsigned char *data, size_t size);
  extern int LLVMFuzzerInitialize(int *argc, char ***argv);
  
  static int run_one_file(const char *filename)
  {
  	git_buf buf = GIT_BUF_INIT;
  	int error = 0;
  
  	if (git_futils_readbuffer(&buf, filename) < 0) {
  		fprintf(stderr, "Failed to read %s: %s\n", filename, git_error_last()->message);
  		error = -1;
  		goto exit;
  	}
  
  	LLVMFuzzerTestOneInput((const unsigned char *)buf.ptr, buf.size);
  exit:
  	git_buf_dispose(&buf);
  	return error;
  }
  
  int main(int argc, char **argv)
  {
  	git_vector corpus_files = GIT_VECTOR_INIT;
  	char *filename = NULL;
  	unsigned i = 0;
  	int error = 0;
  
  	if (git_libgit2_init() < 0) {
  		fprintf(stderr, "Failed to initialize libgit2\n");
  		abort();
  	}
  
  	if (argc != 2) {
  		fprintf(stderr, "Usage: %s <corpus directory>\n", argv[0]);
  		error = -1;
  		goto exit;
  	}
  
  	fprintf(stderr, "Running %s against %s\n", argv[0], argv[1]);
  	LLVMFuzzerInitialize(&argc, &argv);
  
  	if (git_path_dirload(&corpus_files, argv[1], 0, 0x0) < 0) {
  		fprintf(stderr, "Failed to scan corpus directory '%s': %s\n",
  			argv[1], git_error_last()->message);
  		error = -1;
  		goto exit;
  	}
  	git_vector_foreach(&corpus_files, i, filename) {
  		fprintf(stderr, "\tRunning %s...\n", filename);
  		if (run_one_file(filename) < 0) {
  			error = -1;
  			goto exit;
  		}
  	}
  	fprintf(stderr, "Done %d runs\n", i);
  
  exit:
  	git_vector_free_deep(&corpus_files);
  	git_libgit2_shutdown();
  	return error;
  }
  

Download