From 7f1092aa9659fbc4c8b6fc2e3e6dab6389e5b19d Mon Sep 17 00:00:00 2001
From: Henrik Holst <6200749+hholst80@users.noreply.github.com>
Date: Mon, 1 Jan 2024 23:44:28 +0100
Subject: [PATCH] net: support only ip and ip6 in net.tcp_listener (#20336)

---
 vlib/net/tcp.c.v | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vlib/net/tcp.c.v b/vlib/net/tcp.c.v
index 9c449163222b57..8943fc8a75e484 100644
--- a/vlib/net/tcp.c.v
+++ b/vlib/net/tcp.c.v
@@ -301,6 +301,9 @@ pub:
 }
 
 pub fn listen_tcp(family AddrFamily, saddr string, options ListenOptions) !&TcpListener {
+	if family != .ip && family != .ip6 {
+		return error('listen_tcp only supports ip and ip6')
+	}
 	mut s := new_tcp_socket(family) or { return error('${err.msg()}; could not create new socket') }
 	s.set_dualstack(options.dualstack) or {}