From 1039ba2bca0d7d79cb4cebfe3217eabe1d0606df Mon Sep 17 00:00:00 2001
From: Gleb Smirnoff <glebius@FreeBSD.org>
Date: Sat, 3 Sep 2022 09:02:34 +0000
Subject: [PATCH] gh-96534: socketmodule: support FreeBSD divert(4) socket

---
 Doc/library/socket.rst                              | 11 +++++++++++
 .../2022-09-03-09-24-02.gh-issue-96534.EU4Oxv.rst   |  1 +
 Modules/socketmodule.c                              | 13 +++++++++++++
 3 files changed, 25 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Library/2022-09-03-09-24-02.gh-issue-96534.EU4Oxv.rst

diff --git a/Doc/library/socket.rst b/Doc/library/socket.rst
index f97c4f67001633..8535f63d9b09f8 100644
--- a/Doc/library/socket.rst
+++ b/Doc/library/socket.rst
@@ -498,6 +498,17 @@ Constants
    .. versionadded:: 3.9
 
 
+.. data:: AF_DIVERT
+          PF_DIVERT
+
+   These two constants, documented in the FreeBSD divert(4) manual page, are
+   also defined in the socket module.
+
+   .. availability:: FreeBSD >= 14.0.
+
+   .. versionadded:: 3.12
+
+
 .. data:: AF_PACKET
           PF_PACKET
           PACKET_*
diff --git a/Misc/NEWS.d/next/Library/2022-09-03-09-24-02.gh-issue-96534.EU4Oxv.rst b/Misc/NEWS.d/next/Library/2022-09-03-09-24-02.gh-issue-96534.EU4Oxv.rst
new file mode 100644
index 00000000000000..0497d9eb69163e
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-09-03-09-24-02.gh-issue-96534.EU4Oxv.rst
@@ -0,0 +1 @@
+Support divert(4) added in FreeBSD 14.
diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 869bacde924d83..f345707a6ba973 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -1850,6 +1850,11 @@ getsockaddrarg(PySocketSockObject *s, PyObject *args,
         /* RDS sockets use sockaddr_in: fall-through */
 #endif /* AF_RDS */
 
+#ifdef AF_DIVERT
+    case AF_DIVERT:
+        /* FreeBSD divert(4) sockets use sockaddr_in: fall-through */
+#endif /* AF_DIVERT */
+
     case AF_INET:
     {
         struct maybe_idna host = {NULL, NULL};
@@ -7628,6 +7633,14 @@ PyInit__socket(void)
     PyModule_AddIntMacro(m, AF_SYSTEM);
 #endif
 
+/* FreeBSD divert(4) */
+#ifdef PF_DIVERT
+    PyModule_AddIntMacro(m, PF_DIVERT);
+#endif
+#ifdef AF_DIVERT
+    PyModule_AddIntMacro(m, AF_DIVERT);
+#endif
+
 #ifdef AF_PACKET
     PyModule_AddIntMacro(m, AF_PACKET);
 #endif