From de91c5fb728be7d7b699b4c4726f24679470ff03 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Sat, 7 Dec 2024 20:25:35 +0000
Subject: [PATCH] sys::socket adding GetOnly `TCP_FUNCTION_ALIAS` for freebsd.

to complete `TCP_FUNCTION_BLK` as to get the alias name, if existent,
of the TCP stack.
---
 src/sys/socket/sockopt.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/sys/socket/sockopt.rs b/src/sys/socket/sockopt.rs
index 9515541b57..c01259fb6a 100644
--- a/src/sys/socket/sockopt.rs
+++ b/src/sys/socket/sockopt.rs
@@ -330,6 +330,19 @@ sockopt_impl!(
     libc::TCP_FUNCTION_BLK,
     libc::tcp_function_set
 );
+#[cfg(target_os = "freebsd")]
+#[cfg(feature = "net")]
+sockopt_impl!(
+    #[cfg_attr(docsrs, doc(cfg(feature = "net")))]
+    /// Query the alias name of the set of function of the socket's TCP stack.
+    /// Uses the same field for the main name when getting from TCP_FUNCTION_BLK.
+    /// Empty if no alias.
+    TcpFunctionAlias,
+    GetOnly,
+    libc::IPPROTO_TCP,
+    libc::TCP_FUNCTION_ALIAS,
+    libc::tcp_function_set
+);
 sockopt_impl!(
     #[cfg_attr(docsrs, doc(cfg(feature = "net")))]
     /// Used to disable Nagle's algorithm.