#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(

for inline in (True, False):

    try:

        index, cache = parsers.parse_index2(data, inline)

        index.slicechunktodensity(list(range(len(index))), 0.5, 262144)

        index.stats()

        index.findsnapshots({}, 0, len(index) - 1)

        10 in index

        for rev in range(len(index)):

            index.reachableroots(0, [len(index)-1], [rev])

            node = index[rev][7]

            partial = index.shortest(node)

            index.partialmatch(node[:partial])

            index.deltachain(rev, None, True)

    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 60k, since we'll just bog

  // down and not accomplish much.

  if (Size > 60000) {

    return 0;

  }

  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.

}

}