From b454662921fd3a1fc27169e91aca03aadea08817 Mon Sep 17 00:00:00 2001
From: chrysn <chrysn@fsfe.org>
Date: Thu, 17 Oct 2024 19:49:12 +0200
Subject: [PATCH] gh-118986: expose `socket.IPV6_RECVERR` (#118987)

---
 Doc/library/socket.rst                                        | 4 ++--
 .../Library/2024-05-13-10-09-41.gh-issue-118986.-r4W9h.rst    | 1 +
 Modules/socketmodule.c                                        | 3 +++
 3 files changed, 6 insertions(+), 2 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Library/2024-05-13-10-09-41.gh-issue-118986.-r4W9h.rst

diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index 935d4a85342..0c7b9328648 100644
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -451,8 +451,8 @@ Constants
       network interface instead of its name.
 
    .. versionchanged:: 3.14
-      Added missing ``IP_RECVERR``, ``IP_RECVTTL``, and ``IP_RECVORIGDSTADDR``
-      on Linux.
+      Added missing ``IP_RECVERR``, ``IPV6_RECVERR``, ``IP_RECVTTL``, and
+      ``IP_RECVORIGDSTADDR`` on Linux.
 
    .. versionchanged:: 3.14
       Added support for ``TCP_QUICKACK`` on Windows platforms when available.
diff --git a/Misc/NEWS.d/next/Library/2024-05-13-10-09-41.gh-issue-118986.-r4W9h.rst b/Misc/NEWS.d/next/Library/2024-05-13-10-09-41.gh-issue-118986.-r4W9h.rst
new file mode 100644
index 00000000000..196da60a950
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-05-13-10-09-41.gh-issue-118986.-r4W9h.rst
@@ -0,0 +1 @@
+Add :data:`!socket.IPV6_RECVERR` constant (available since Linux 2.2).
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 744e5e0c0b2..2764bd6e2b2 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -8578,6 +8578,9 @@ socket_exec(PyObject *m)
 #ifdef IPV6_RECVDSTOPTS
     ADD_INT_MACRO(m, IPV6_RECVDSTOPTS);
 #endif
+#ifdef IPV6_RECVERR
+    ADD_INT_MACRO(m, IPV6_RECVERR);
+#endif
 #ifdef IPV6_RECVHOPLIMIT
     ADD_INT_MACRO(m, IPV6_RECVHOPLIMIT);
 #endif