#include <Python.h>

#include <assert.h>

#include <stdlib.h>

#include <unistd.h>

#include <string>

#include "pyutil.h"

extern "C" {

static PYCODETYPE *code;

extern "C" int LLVMFuzzerInitialize(int *argc, char ***argv)

{

  contrib::initpy(*argv[0]);

  code = (PYCODETYPE *)Py_CompileString(R"py(

def maybeint(s, default):

    try:

        return int(s)

    except ValueError:

        return default

try:

    parts = data.split('\0', 2)

    if len(parts) == 3:

        offset, stop, data = parts

    elif len(parts) == 2:

        stop, data = parts

        offset = 0

    else:

        offset = stop = 0

    offset, stop = maybeint(offset, 0), maybeint(stop, len(data))

    parsers.fm1readmarkers(data, offset, stop)

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)

{

  PyObject *text =

      PyBytes_FromStringAndSize((const char *)Data, (Py_ssize_t)Size);

  PyObject *locals = PyDict_New();

  PyDict_SetItemString(locals, "data", text);

  PyObject *res = PyEval_EvalCode(code, contrib::pyglobals(), locals);

  if (!res) {

    PyErr_Print();

  }

  Py_XDECREF(res);

  Py_DECREF(locals);

  Py_DECREF(text);

  return 0; // Non-zero return values are reserved for future use.

}

}