[3.10] gh-98793: Fix typecheck in overlapped.c (GH-98835) (#98890)

Co-authored-by: Kumar Aditya <[email protected]>
(cherry picked from commit 3ac8c0a)

Author: CharlieZhao95

Lib/test/test_asyncio/test_windows_events.py

@@ -239,6 +239,17 @@ def test_read_self_pipe_restart(self):
         self.close_loop(self.loop)
         self.assertFalse(self.loop.call_exception_handler.called)
 
+    def test_address_argument_type_error(self):
+        # Regression test for https://github.com/python/cpython/issues/98793
+        proactor = self.loop._proactor
+        sock = socket.socket(type=socket.SOCK_DGRAM)
+        bad_address = None
+        with self.assertRaises(TypeError):
+            proactor.connect(sock, bad_address)
+        with self.assertRaises(TypeError):
+            proactor.sendto(sock, b'abc', addr=bad_address)
+        sock.close()
+
 
 class WinPolicyTests(test_utils.TestCase):
 

Misc/NEWS.d/next/Library/2022-10-29-03-40-18.gh-issue-98793.WSPB4A.rst

@@ -0,0 +1 @@
+Fix argument typechecks in :func:`!_overlapped.WSAConnect` and :func:`!_overlapped.Overlapped.WSASendTo` functions.

Modules/clinic/overlapped.c.h

@@ -1638,7 +1638,7 @@ Overlapped_traverse(OverlappedObject *self, visitproc visit, void *arg)
 _overlapped.WSAConnect
 
     client_handle as ConnectSocket: HANDLE
-    address_as_bytes as AddressObj: object
+    address_as_bytes as AddressObj: object(subclass_of='&PyTuple_Type')
     /
 
 Bind a remote address to a connectionless (UDP) socket.
@@ -1647,7 +1647,7 @@ Bind a remote address to a connectionless (UDP) socket.
 static PyObject *
 _overlapped_WSAConnect_impl(PyObject *module, HANDLE ConnectSocket,
                             PyObject *AddressObj)
-/*[clinic end generated code: output=ea0b4391e94dad63 input=169f8075e9ae7fa4]*/
+/*[clinic end generated code: output=ea0b4391e94dad63 input=7cf65313d49c015a]*/
 {
     char AddressBuf[sizeof(struct sockaddr_in6)];
     SOCKADDR *Address = (SOCKADDR*)AddressBuf;
@@ -1681,7 +1681,7 @@ _overlapped.Overlapped.WSASendTo
     handle: HANDLE
     buf as bufobj: object
     flags: DWORD
-    address_as_bytes as AddressObj: object
+    address_as_bytes as AddressObj: object(subclass_of='&PyTuple_Type')
     /
 
 Start overlapped sendto over a connectionless (UDP) socket.
@@ -1691,7 +1691,7 @@ static PyObject *
 _overlapped_Overlapped_WSASendTo_impl(OverlappedObject *self, HANDLE handle,
                                       PyObject *bufobj, DWORD flags,
                                       PyObject *AddressObj)
-/*[clinic end generated code: output=fe0ff55eb60d65e1 input=f709e6ecebd9bc18]*/
+/*[clinic end generated code: output=fe0ff55eb60d65e1 input=932a34941465df43]*/
 {
     char AddressBuf[sizeof(struct sockaddr_in6)];
     SOCKADDR *Address = (SOCKADDR*)AddressBuf;