upstream/mercurial-mirror Files · contrib/fuzz/dirstate.cc

histedit: notice when the main window underflows height and abort...

histedit: notice when the main window underflows height and abort If you try to have a 13-line-tall terminal and use curses histedit, it fails by spinning in an infinite loop due to the catch-all ignore of curses errors on line 1682 of histedit.py. We should also fix that catch-all ignore of curses errors (what other demons lurk here, I wonder?) but we can trivially catch this case and guide the user to a happy path. We've seen this mostly in IDE users that have a tendency to have really tiny embedded terminal windows. Differential Revision: https://phab.mercurial-scm.org/D9854

Augie Fackler - - Load All Authors

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      #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(

      try:

          dmap = {}

          copymap = {}

          p = parsers.parse_dirstate(dmap, copymap, data)

      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.

      }

      }

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				#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(
				try:
				dmap = {}
				copymap = {}
				p = parsers.parse_dirstate(dmap, copymap, data)
				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.
				}
				}