From 5d72a11892878aeef9f6af93d078d04a38f1b3b1 Mon Sep 17 00:00:00 2001
From: Can ZHANG <can.zhang@ipfsbit.com>
Date: Thu, 15 Nov 2018 18:02:37 +0800
Subject: [PATCH] Remember observed addresses for wildcard local addresses as
 well

---
 p2p/protocol/identify/id.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/p2p/protocol/identify/id.go b/p2p/protocol/identify/id.go
index 5991fe6..86bfada 100644
--- a/p2p/protocol/identify/id.go
+++ b/p2p/protocol/identify/id.go
@@ -412,6 +412,18 @@ func (ids *IDService) consumeObservedAddress(observed []byte, c inet.Conn) {
 }
 
 func addrInAddrs(a ma.Multiaddr, as []ma.Multiaddr) bool {
+	// allow wildcard addresses
+	if ip, err := a.ValueForProtocol(ma.P_IP4); err == nil {
+		if parsed := net.ParseIP(ip); parsed != nil && parsed.IsUnspecified() {
+			return true
+		}
+	}
+	if ip, err := a.ValueForProtocol(ma.P_IP6); err == nil {
+		if parsed := net.ParseIP(ip); parsed != nil && parsed.IsUnspecified() {
+			return true
+		}
+	}
+
 	for _, b := range as {
 		if a.Equal(b) {
 			return true
-- 
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