bpo-23451: Fix socket deprecation warnings in socketmodule.c (#2318)

* bpo-23451: Fix WSASocket and WSADuplicateSocket deprecation warnings

* bpo-23451: Add backwards compatibility note about socket share/fromshare

* bpo-23451: Fixed `WSAAddressToString`/`WSAStringToAddress` deprecation warnings

* bpo-23451: Use `inet_pton`/`inet_ntop` instead of `WSAAddressToString`/`WSAStringToAddress`

* bpo-23451: Move `HAVE_INET_PTON` from _socket.vcxproj to pyconfig.h

* bpo-23451: Add SUPPRESS_DEPRECATED_CALL to socketmodule.c

* bpo-23451: Add a NEWS.d entry

* bpo-23451: Corrected NEWS.d entry

Doc/whatsnew/3.7.rst

@@ -451,6 +451,10 @@ Changes in the Python API
 * The :attr:`struct.Struct.format` type is now :class:`str` instead of
   :class:`bytes`. (Contributed by Victor Stinner in :issue:`21071`.)
 
+* Due to internal changes in :mod:`socket` you won't be able to
+  :func:`socket.fromshare` a socket :func:`~socket.socket.share`-ed in older
+  Python versions.
+
 
 CPython bytecode changes
 ------------------------

Misc/NEWS.d/next/Windows/2017-06-27-07-04-06.bpo-23451.bl_QOB.rst

+Fix socket deprecation warnings in socketmodule.c. Patch by Segev Finer.

PC/pyconfig.h

@@ -690,6 +690,9 @@ Py_NO_ENABLE_SHARED to find out.  Also support MS_NO_COREDLL for b/w compat */
 /* Define to 1 if you have the `erfc' function. */
 #define HAVE_ERFC 1
 
+/* Define if you have the 'inet_pton' function. */
+#define HAVE_INET_PTON 1
+
 /* framework name */
 #define PYTHONFRAMEWORK ""