gh-142991: socketmodule: fixed getsockaddrlen() for PF_DIVERT socket (#142993)

diff --git a/Misc/NEWS.d/next/Library/2025-12-20-10-21-23.gh-issue-142991.jYHD9E.rst b/Misc/NEWS.d/next/Library/2025-12-20-10-21-23.gh-issue-142991.jYHD9E.rst
new file mode 100644 (file)
index 0000000..2c76bb4
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2025-12-20-10-21-23.gh-issue-142991.jYHD9E.rst
@@ -0,0 +1,2 @@
+Fixed socket operations such as recvfrom() and sendto() for FreeBSD
+divert(4) socket.

diff --git a/Modules/socketmodule.c b/Modules/socketmodule.c
index 1ef359cb265ed46194cf9369123bb98c930417ff..ee78ad01598262b9d12b133af061d7c5f29b27a4 100644 (file)
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -2769,6 +2769,12 @@ getsockaddrlen(PySocketSockObject *s, socklen_t *len_ret)
        _Py_FALLTHROUGH;
 #endif /* AF_RDS */
 
+#ifdef AF_DIVERT
+    case AF_DIVERT:
+        /* FreeBSD divert(4) sockets use sockaddr_in: fall-through */
+       _Py_FALLTHROUGH;
+#endif /* AF_DIVERT */
+
     case AF_INET:
     {
         *len_ret = sizeof (struct sockaddr_in);