p2p/enode: fix TCPEndpoint (ethereum#29827)

AaronChen0 · jakub-freebit · commit 7aac5fd9ca97 · 2025-09-16T18:28:13.000+09:00
diff --git a/p2p/enode/node.go b/p2p/enode/node.go
@@ -184,7 +184,7 @@ func (n *Node) TCP() int {
 	return int(n.tcp)
 }
 
-// UDPEndpoint returns the announced TCP endpoint.
+// UDPEndpoint returns the announced UDP endpoint.
 func (n *Node) UDPEndpoint() (netip.AddrPort, bool) {
 	if !n.ip.IsValid() || n.ip.IsUnspecified() || n.udp == 0 {
 		return netip.AddrPort{}, false
@@ -197,7 +197,7 @@ func (n *Node) TCPEndpoint() (netip.AddrPort, bool) {
 	if !n.ip.IsValid() || n.ip.IsUnspecified() || n.tcp == 0 {
 		return netip.AddrPort{}, false
 	}
-	return netip.AddrPortFrom(n.ip, n.udp), true
+	return netip.AddrPortFrom(n.ip, n.tcp), true
 }
 
 // Pubkey returns the secp256k1 public key of the node, if present.

Original file line number	Diff line number	Diff line change
`@@ -184,7 +184,7 @@ func (n *Node) TCP() int {`
`184`	`184`	`return int(n.tcp)`
`185`	`185`	`}`
`186`	`186`
`187`		`-// UDPEndpoint returns the announced TCP endpoint.`
	`187`	`+// UDPEndpoint returns the announced UDP endpoint.`
`188`	`188`	`func (n *Node) UDPEndpoint() (netip.AddrPort, bool) {`
`189`	`189`	`if !n.ip.IsValid() \|\| n.ip.IsUnspecified() \|\| n.udp == 0 {`
`190`	`190`	`return netip.AddrPort{}, false`
`@@ -197,7 +197,7 @@ func (n *Node) TCPEndpoint() (netip.AddrPort, bool) {`
`197`	`197`	`if !n.ip.IsValid() \|\| n.ip.IsUnspecified() \|\| n.tcp == 0 {`
`198`	`198`	`return netip.AddrPort{}, false`
`199`	`199`	`}`
`200`		`- return netip.AddrPortFrom(n.ip, n.udp), true`
	`200`	`+ return netip.AddrPortFrom(n.ip, n.tcp), true`
`201`	`201`	`}`
`202`	`202`
`203`	`203`	`// Pubkey returns the secp256k1 public key of the node, if present.`