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do not allow reading negative values with getstr()

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Benjamin Peterson 2016-08-13 18:15:28 -07:00
parent 59b6abd38c
commit 40a77c3381
3 changed files with 14 additions and 0 deletions
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8
Modules/_cursesmodule.c
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@ -1284,6 +1284,10 @@ PyCursesWindow_GetStr(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;
}
Py_BEGIN_ALLOW_THREADS
rtn2 = wgetnstr(self->win, rtn, Py_MIN(n, 1023));
Py_END_ALLOW_THREADS
@ -1302,6 +1306,10 @@ PyCursesWindow_GetStr(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;
}
#ifdef STRICT_SYSV_CURSES
Py_BEGIN_ALLOW_THREADS
rtn2 = wmove(self->win,y,x)==ERR ? ERR :