upstream/mercurial-mirror Files · contrib/fuzz/bdiff.cc

dirstate-v2: no longer register the data-file during transaction...

dirstate-v2: no longer register the data-file during transaction If the data file change during the transaction, we cannot truncate it. The content of the file itself is fine as it will get backed up at the same time as the docket. Leaving the trailing data at the end of failed transaction is fine. The dirstate-v2 format supports it. The dead data will simply we written over if necessary.

Augie Fackler - - Load All Authors

File last commit:

r44255:7857bd9b default


                r50364:b5c85248

6.2.2 stable

Download file

             bdiff.cc
        
                    39 lines
            
             | 969 B
            
                | text/x-c
            
             |
                CppLexer
            
             / contrib / fuzz / bdiff.cc
          
                    History
                
                 |
                  Annotation
                 | Raw
                 |Copy content
                 |Copy permalink

      /*

       * 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"

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

				/*
				* 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"