From b0f66e34ca2a4ea7ae23475224451c8c9a569826 Mon Sep 17 00:00:00 2001
From: dknopik <107140945+dknopik@users.noreply.github.com>
Date: Sat, 27 Jul 2024 10:18:05 +0200
Subject: [PATCH] p2p/nat: return correct port for ExtIP NAT (#30234)

Return the actually requested external port instead of 0 in the
AddMapping implementation for `--nat extip:<IP>`.
---
 p2p/nat/nat.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/p2p/nat/nat.go b/p2p/nat/nat.go
index 2aa1f85585..c656044268 100644
--- a/p2p/nat/nat.go
+++ b/p2p/nat/nat.go
@@ -138,8 +138,10 @@ func (n ExtIP) String() string              { return fmt.Sprintf("ExtIP(%v)", ne
 
 // These do nothing.
 
-func (ExtIP) AddMapping(string, int, int, string, time.Duration) (uint16, error) { return 0, nil }
-func (ExtIP) DeleteMapping(string, int, int) error                               { return nil }
+func (ExtIP) AddMapping(protocol string, extport, intport int, name string, lifetime time.Duration) (uint16, error) {
+	return uint16(extport), nil
+}
+func (ExtIP) DeleteMapping(string, int, int) error { return nil }
 
 // Any returns a port mapper that tries to discover any supported
 // mechanism on the local network.