gh-91498: socket: Add TCP_CONNECTION_INFO on macOS (#69256)

Fixes GH-91498

Author: devnexen

Doc/library/socket.rst

@@ -388,6 +388,10 @@ Constants
        Added ``TCP_KEEPALIVE``. On MacOS this constant can be used in the same
        way that ``TCP_KEEPIDLE`` is used on Linux.
 
+   .. versionchanged:: 3.11
+      Added ``TCP_CONNECTION_INFO``. On MacOS this constant can be used in the
+      same way that ``TCP_INFO`` is used on Linux and BSD.
+
 .. data:: AF_CAN
           PF_CAN
           SOL_CAN_*

Misc/NEWS.d/next/Library/2022-04-10-08-39-44.bpo-91498.8oII92.rst

@@ -0,0 +1 @@
+Add the ``TCP_CONNECTION_INFO`` option (available on macOS) to :mod:`socket`.

Modules/socketmodule.c

@@ -8213,6 +8213,9 @@ PyInit__socket(void)
 #ifdef  TCP_INFO
     PyModule_AddIntMacro(m, TCP_INFO);
 #endif
+#ifdef  TCP_CONNECTION_INFO
+    PyModule_AddIntMacro(m, TCP_CONNECTION_INFO);
+#endif
 #ifdef  TCP_QUICKACK
     PyModule_AddIntMacro(m, TCP_QUICKACK);
 #endif