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fail when negative values are passed to instr()

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This commit is contained in:
Benjamin Peterson 2016-08-15 21:40:14 -07:00
parent 5e4aafa258
commit 432ea4ff37
3 changed files with 12 additions and 2 deletions
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8
Modules/_cursesmodule.c
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@ -1456,6 +1456,10 @@ PyCursesWindow_InStr(PyCursesWindowObject *self, PyObject *args)
case 1:
if (!PyArg_ParseTuple(args,"i;n", &n))
return NULL;
if (n < 0) {
PyErr_SetString(PyExc_ValueError, "'n' must be nonnegative");
return NULL;
}
rtn2 = winnstr(self->win, rtn, Py_MIN(n, 1023));
break;
case 2:
@ -1466,6 +1470,10 @@ PyCursesWindow_InStr(PyCursesWindowObject *self, PyObject *args)
case 3:
if (!PyArg_ParseTuple(args, "iii;y,x,n", &y, &x, &n))
return NULL;
if (n < 0) {
PyErr_SetString(PyExc_ValueError, "'n' must be nonnegative");
return NULL;
}
rtn2 = mvwinnstr(self->win, y, x, rtn, Py_MIN(n,1023));
break;
default: