Mercurial > hg
view contrib/fuzz/bdiff.cc @ 47476:f23eafb036af
dirstate-v2: Use 32-bit integers instead of 64-bit for offsets
This saves 12 bytes per node. (Nodes representing files or directories.)
These are offsets to other parts of the file. This would only be a limitation
for a `.hg/dirstate` file larger than 4 GiB, which would only happen for a
repository with dozens of millions of files and directories.
Differential Revision: https://phab.mercurial-scm.org/D10920
author | Simon Sapin <simon.sapin@octobus.net> |
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date | Mon, 28 Jun 2021 15:41:50 +0200 |
parents | d37658efbec2 |
children |
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/* * 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"