From 0abfe78858ae60b2f047ce314503223b21eec07b Mon Sep 17 00:00:00 2001
From: Neil Alexander <neilalexander@users.noreply.github.com>
Date: Sat, 24 Sep 2022 13:46:22 +0100
Subject: [PATCH] Silence error when reconnecting to already connected peer

---
 src/core/link.go | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/core/link.go b/src/core/link.go
index 08e8dfc..4d5cff5 100644
--- a/src/core/link.go
+++ b/src/core/link.go
@@ -113,17 +113,19 @@ func (l *links) isConnectedTo(info linkInfo) bool {
 func (l *links) call(u *url.URL, sintf string) error {
 	info := linkInfoFor(u.Scheme, sintf, u.Host)
 	if l.isConnectedTo(info) {
-		return fmt.Errorf("already connected to this node")
+		return nil
 	}
 	options := linkOptions{
 		pinnedEd25519Keys: map[keyArray]struct{}{},
 	}
 	for _, pubkey := range u.Query()["key"] {
-		if sigPub, err := hex.DecodeString(pubkey); err == nil {
-			var sigPubKey keyArray
-			copy(sigPubKey[:], sigPub)
-			options.pinnedEd25519Keys[sigPubKey] = struct{}{}
+		sigPub, err := hex.DecodeString(pubkey)
+		if err != nil {
+			return fmt.Errorf("pinned key contains invalid hex characters")
 		}
+		var sigPubKey keyArray
+		copy(sigPubKey[:], sigPub)
+		options.pinnedEd25519Keys[sigPubKey] = struct{}{}
 	}
 	switch info.linkType {
 	case "tcp":