gh-132987: Support __index__() in the ssl.SSLContext.options setter

Author: serhiy-storchaka

Modules/_ssl.c

@@ -27,6 +27,7 @@
 
 #include "Python.h"
 #include "pycore_fileutils.h"     // _PyIsSelectable_fd()
+#include "pycore_long.h"          // _PyLong_UnsignedLongLong_Converter()
 #include "pycore_pyerrors.h"      // _PyErr_ChainExceptions1()
 #include "pycore_time.h"          // _PyDeadline_Init()
 
@@ -3812,19 +3813,14 @@ static int
 _ssl__SSLContext_options_set_impl(PySSLContext *self, PyObject *value)
 /*[clinic end generated code: output=92ca34731ece5dbb input=2b94bf789e9ae5dd]*/
 {
-    PyObject *new_opts_obj;
     unsigned long long new_opts_arg;
     uint64_t new_opts, opts, clear, set;
     uint64_t opt_no = (
         SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 |
         SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2 | SSL_OP_NO_TLSv1_3
     );
 
-    if (!PyArg_Parse(value, "O!", &PyLong_Type, &new_opts_obj)) {
-        return -1;
-    }
-    new_opts_arg = PyLong_AsUnsignedLongLong(new_opts_obj);
-    if (new_opts_arg == (unsigned long long)-1 && PyErr_Occurred()) {
+    if (!PyArg_Parse(value, "O&", _PyLong_UnsignedLongLong_Converter, &new_opts_arg)) {
         return -1;
     }
     Py_BUILD_ASSERT(sizeof(new_opts) >= sizeof(new_opts_arg));