add an error check that we actually received the peer's public key

transport.go

@@ -2,6 +2,7 @@ package libp2pquic
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"net"
 	"sync"
@@ -22,7 +23,7 @@ var quicConfig = &quic.Config{
 	MaxIncomingUniStreams:                 -1,              // disable unidirectional streams
 	MaxReceiveStreamFlowControlWindow:     3 * (1 << 20),   // 3 MB
 	MaxReceiveConnectionFlowControlWindow: 4.5 * (1 << 20), // 4.5 MB
-	AcceptCookie: func(clientAddr net.Addr, cookie *quic.Cookie) bool {
+	AcceptToken: func(_ net.Addr, _ *quic.Token) bool {
 		// TODO(#6): require source address validation when under load
 		return true
 	},
@@ -127,6 +128,9 @@ func (t *transport) Dial(ctx context.Context, raddr ma.Multiaddr, p peer.ID) (tp
 	case remotePubKey = <-keyCh:
 	default:
 	}
+	if remotePubKey == nil {
+		return nil, errors.New("go-libp2p-quic-transport BUG: expected remote pub key to be set")
+	}
 
 	return &conn{
 		sess:            sess,