Issue #9015, #9611: stdprinter.write() clamps the length to 2^31-1 on Windows
diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index 9288e35..d20f196 100644
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -344,7 +344,7 @@
}
static int
-fileio_init(PyObject *self, PyObject *args, PyObject *kwds)
+stdprinter_init(PyObject *self, PyObject *args, PyObject *kwds)
{
PyErr_SetString(PyExc_TypeError,
"cannot create 'stderrprinter' instances");
@@ -390,7 +390,13 @@
Py_BEGIN_ALLOW_THREADS
errno = 0;
+#if defined(MS_WIN64) || defined(MS_WINDOWS)
+ if (n > INT_MAX)
+ n = INT_MAX;
+ n = write(self->fd, c, (int)n);
+#else
n = write(self->fd, c, n);
+#endif
Py_END_ALLOW_THREADS
if (n < 0) {
@@ -509,7 +515,7 @@
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
- fileio_init, /* tp_init */
+ stdprinter_init, /* tp_init */
PyType_GenericAlloc, /* tp_alloc */
stdprinter_new, /* tp_new */
PyObject_Del, /* tp_free */