don't adveretise unspecific relay addrs in RelayHost

p2p/host/relay/relay.go

@@ -3,21 +3,34 @@ package relay
 import (
 	"context"
 
+	basic "github.com/libp2p/go-libp2p/p2p/host/basic"
+
 	discovery "github.com/libp2p/go-libp2p-discovery"
 	host "github.com/libp2p/go-libp2p-host"
+	ma "github.com/multiformats/go-multiaddr"
 )
 
 // RelayHost is a Host that provides Relay services.
 type RelayHost struct {
-	host.Host
+	*basic.BasicHost
 	advertise discovery.Advertiser
+	addrsF    basic.AddrsFactory
 }
 
 // New constructs a new RelayHost
-func NewRelayHost(ctx context.Context, host host.Host, advertise discovery.Advertiser) *RelayHost {
-	h := &RelayHost{Host: host, advertise: advertise}
+func NewRelayHost(ctx context.Context, bhost *basic.BasicHost, advertise discovery.Advertiser) *RelayHost {
+	h := &RelayHost{
+		BasicHost: bhost,
+		addrsF:    bhost.AddrsFactory,
+		advertise: advertise,
+	}
+	bhost.AddrsFactory = h.hostAddrs
 	discovery.Advertise(ctx, advertise, "/libp2p/relay")
 	return h
 }
 
+func (h *RelayHost) hostAddrs(addrs []ma.Multiaddr) []ma.Multiaddr {
+	return filterUnspecificRelay(h.addrsF(addrs))
+}
+
 var _ host.Host = (*RelayHost)(nil)