From f07644e17e151307d4fe302ee3b292d866b56de9 Mon Sep 17 00:00:00 2001
From: Rob Murray <rob.murray@docker.com>
Date: Mon, 18 Mar 2024 10:14:50 +0000
Subject: [PATCH] Add netiputil.AddrPortFromNet()

Co-authored-by: Cory Snider <csnider@mirantis.com>
Signed-off-by: Rob Murray <rob.murray@docker.com>
---
 libnetwork/internal/netiputil/netiputil.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libnetwork/internal/netiputil/netiputil.go b/libnetwork/internal/netiputil/netiputil.go
index 76cb5922a3..7c907569f5 100644
--- a/libnetwork/internal/netiputil/netiputil.go
+++ b/libnetwork/internal/netiputil/netiputil.go
@@ -51,3 +51,11 @@ func SubnetRange(network, subnet netip.Prefix) (start, end uint64) {
 	end = start + (1 << uint64(subnet.Addr().BitLen()-subnet.Bits())) - 1
 	return start, end
 }
+
+// AddrPortFromNet converts a net.Addr into a netip.AddrPort.
+func AddrPortFromNet(addr net.Addr) netip.AddrPort {
+	if a, ok := addr.(interface{ AddrPort() netip.AddrPort }); ok {
+		return a.AddrPort()
+	}
+	return netip.AddrPort{}
+}