https://github.com/agronholm/anyio/issues/692

--- anyio-4.11.0/src/anyio/_core/_sockets.py.orig
+++ anyio-4.11.0/src/anyio/_core/_sockets.py
@@ -351,9 +351,9 @@
     # https://github.com/MagicStack/uvloop/issues/539
     gai_res = await getaddrinfo(
         local_host,
-        local_port,
+        local_port or None,
         family=family,
-        type=socket.SOCK_STREAM if sys.platform == "win32" else 0,
+        type=socket.SOCK_STREAM,
         flags=socket.AI_PASSIVE | socket.AI_ADDRCONFIG,
     )
 
--- anyio-4.11.0/tests/test_sockets.py.orig
+++ anyio-4.11.0/tests/test_sockets.py
@@ -935,7 +935,6 @@
     @pytest.mark.parametrize(
         "local_host,family,expected_listeners,local_port",
         [
-            (None, AddressFamily.AF_UNSPEC, 1 if socket.has_dualstack_ipv6() else 2, 0),
             ("localhost", AddressFamily.AF_UNSPEC, 2, 0),
             ("localhost", AddressFamily.AF_INET, 1, 0),
             ("::", AddressFamily.AF_UNSPEC, 1, 0),
@@ -972,6 +971,7 @@
             assert len(multi.listeners) == expected_listeners
 
     @skip_ipv6_mark
+    @pytest.mark.skip("https://github.com/agronholm/anyio/issues/692")
     async def test_tcp_listener_dualstack_disabled(
         self, monkeypatch: MonkeyPatch
     ) -> None:
@@ -1034,6 +1034,7 @@
                     isinstance(listener, SocketListener) for listener in multi.listeners
                 )
 
+    @pytest.mark.skip("https://github.com/agronholm/anyio/issues/692")
     async def test_tcp_listener_total_bind_failure(self) -> None:
         """
         Test for a situation where bind() always fails when other listeners are being
@@ -2352,8 +2353,8 @@
 @pytest.mark.network
 async def test_getaddrinfo() -> None:
     # IDNA 2003 gets this wrong
-    correct = await getaddrinfo("faß.de", 0)
-    wrong = await getaddrinfo("fass.de", 0)
+    correct = await getaddrinfo("faß.de", None)
+    wrong = await getaddrinfo("fass.de", None)
     assert correct != wrong