Mercurial > hg
view contrib/fuzz/manifest.cc @ 48946:642e31cb55f0
py3: use class X: instead of class X(object):
The inheritance from object is implied in Python 3. So this should
be equivalent.
This change was generated via an automated search and replace. So there
may have been some accidental changes.
Differential Revision: https://phab.mercurial-scm.org/D12352
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 21 Feb 2022 13:08:28 -0700 |
parents | 0ff59434af72 |
children |
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#include <Python.h> #include <assert.h> #include <stdlib.h> #include <unistd.h> #include "FuzzedDataProvider.h" #include "pyutil.h" #include <string> extern "C" { static PYCODETYPE *code; extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv) { contrib::initpy(*argv[0]); code = (PYCODETYPE *)Py_CompileString(R"py( try: lm = parsers.lazymanifest(mdata) # iterate the whole thing, which causes the code to fully parse # every line in the manifest for e, _, _ in lm.iterentries(): # also exercise __getitem__ et al lm[e] e in lm (e + 'nope') in lm lm[b'xyzzy'] = (b'\0' * nlen, 'x') # do an insert, text should change assert lm.text() != mdata, "insert should change text and didn't: %r %r" % (lm.text(), mdata) cloned = lm.filtercopy(lambda x: x != 'xyzzy') assert cloned.text() == mdata, 'cloned text should equal mdata' cloned.diff(lm) del lm[b'xyzzy'] cloned.diff(lm) # should be back to the same assert lm.text() == mdata, "delete should have restored text but didn't: %r %r" % (lm.text(), mdata) 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); return 0; } int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { // Don't allow fuzzer inputs larger than 100k, since we'll just bog // down and not accomplish much. if (Size > 100000) { return 0; } FuzzedDataProvider provider(Data, Size); Py_ssize_t nodelength = provider.ConsumeBool() ? 20 : 32; PyObject *nlen = PyLong_FromSsize_t(nodelength); PyObject *mtext = PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size); PyObject *locals = PyDict_New(); PyDict_SetItemString(locals, "mdata", mtext); PyDict_SetItemString(locals, "nlen", nlen); 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. } }