contrib/fuzz/dirs.cc
author Arseniy Alekseyev <aalekseyev@janestreet.com>
Thu, 21 Dec 2023 17:38:04 +0000
changeset 51395 a0d88b021a98
parent 43859 8766728dbce6
permissions -rw-r--r--
unbundle: faster computation of changed heads To compute the set of changed heads it's sufficient to look at the recent commits, instead of looking at all heads currently in existence.
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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 "pyutil.h"
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#include <string>
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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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  files = mdata.split('\n')
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  d = parsers.dirs(files)
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  list(d)
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  'a' in d
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  if files:
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    files[0] in d
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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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	// Don't allow fuzzer inputs larger than 100k, since we'll just bog
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	// down and not accomplish much.
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	if (Size > 100000) {
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		return 0;
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	}
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	PyObject *mtext =
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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, "mdata", mtext);
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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(mtext);
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	return 0; // Non-zero return values are reserved for future use.
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}
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}