contrib/fuzz/dirstate.cc
author Pierre-Yves David <pierre-yves.david@octobus.net>
Tue, 14 Jun 2022 11:26:18 +0200
branchstable
changeset 49344 0cc5f74ff7f0
parent 43859 8766728dbce6
permissions -rw-r--r--
purge: prevent a silly crash with --confirm --files if --files is passed, there was no directory to checks and `msg` was undefined. This is now fixed and tested.
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#include <Python.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string>
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#include "pyutil.h"
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extern "C" {
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static PYCODETYPE *code;
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extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)
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{
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	contrib::initpy(*argv[0]);
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	code = (PYCODETYPE *)Py_CompileString(R"py(
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try:
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    dmap = {}
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    copymap = {}
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    p = parsers.parse_dirstate(dmap, copymap, data)
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except Exception as e:
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    pass
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    # uncomment this print if you're editing this Python code
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    # to debug failures.
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    # print e
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)py",
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	                                      "fuzzer", Py_file_input);
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	return 0;
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}
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int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size)
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{
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	PyObject *text =
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	    PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size);
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	PyObject *locals = PyDict_New();
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	PyDict_SetItemString(locals, "data", text);
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	PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals);
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	if (!res) {
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		PyErr_Print();
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	}
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	Py_XDECREF(res);
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	Py_DECREF(locals);
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	Py_DECREF(text);
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	return 0; // Non-zero return values are reserved for future use.
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}
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}