Mercurial > hg
view contrib/fuzz/jsonescapeu8fast.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> |
---|---|
date | Mon, 28 Jun 2021 15:41:50 +0200 |
parents | 8766728dbce6 |
children |
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#include <Python.h> #include <assert.h> #include <stdlib.h> #include <unistd.h> #include "pyutil.h" #include <iostream> #include <string> #include "FuzzedDataProvider.h" extern "C" { static PYCODETYPE *code; extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) { contrib::initpy(*argv[0]); code = (PYCODETYPE *)Py_CompileString(R"py( try: parsers.jsonescapeu8fast(data, paranoid) except Exception as e: pass # uncomment this print if you're editing this Python code # to debug failures. # print(e) )py", "fuzzer", Py_file_input); if (!code) { std::cerr << "failed to compile Python code!" << std::endl; } return 0; } int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { FuzzedDataProvider provider(Data, Size); bool paranoid = provider.ConsumeBool(); std::string remainder = provider.ConsumeRemainingBytesAsString(); PyObject *mtext = PyBytes_FromStringAndSize( (const char *)remainder.c_str(), remainder.size()); PyObject *locals = PyDict_New(); PyDict_SetItemString(locals, "data", mtext); PyDict_SetItemString(locals, "paranoid", paranoid ? Py_True : Py_False); PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals); if (!res) { PyErr_Print(); } Py_XDECREF(res); Py_DECREF(locals); Py_DECREF(mtext); return 0; // Non-zero return values are reserved for future use. } }