gh-141817: Add IPV6_HDRINCL constant to the socket module (#141818)

Rosuav · vstinner · picnixz · web-flow · commit f21ed37daf95 · 2025-11-22T18:07:21.000+01:00
Co-authored-by: Victor Stinner &lt;vstinner@python.org&gt;
Co-authored-by: Bénédikt Tran &lt;10796600+picnixz@users.noreply.github.com&gt;
diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
@@ -482,6 +482,9 @@ The AF_* and SOCK_* constants are now :class:`AddressFamily` and
    .. versionchanged:: 3.14
       Added support for ``TCP_QUICKACK`` on Windows platforms when available.
 
+   .. versionchanged:: next
+      ``IPV6_HDRINCL`` was added.
+
 
 .. data:: AF_CAN
           PF_CAN
diff --git a/Misc/NEWS.d/next/Library/2025-11-21-21-14-10.gh-issue-141817._v5LdB.rst b/Misc/NEWS.d/next/Library/2025-11-21-21-14-10.gh-issue-141817._v5LdB.rst
@@ -0,0 +1 @@
+Add :data:`!socket.IPV6_HDRINCL` constant.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
@@ -8901,6 +8901,9 @@ socket_exec(PyObject *m)
 #ifdef IPV6_HOPLIMIT
     ADD_INT_MACRO(m, IPV6_HOPLIMIT);
 #endif
+#ifdef IPV6_HDRINCL
+    ADD_INT_MACRO(m, IPV6_HDRINCL);
+#endif
 #ifdef IPV6_HOPOPTS
     ADD_INT_MACRO(m, IPV6_HOPOPTS);
 #endif

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	+Add :data:`!socket.IPV6_HDRINCL` constant.