Fix rare crash due to bad DHT node IDs

diff --git a/dht/dht.go b/dht/dht.go
index 3f4377307f99dd17fa7d35c45039b1c64229b21d..d60fd481195f0abdc90d79233ecf04e3011ac007 100644 (file)
--- a/dht/dht.go
+++ b/dht/dht.go
@@ -772,7 +772,7 @@ func (s *Server) getNode(addr dHTAddr, id string) (n *node) {
        n = &node{
                addr: addr,
        }
-       if id != "" {
+       if len(id) == 20 {
                n.SetIDFromString(id)
        }
        if len(s.nodes) >= maxNodes {