From d9543de951297e2c2044337959c35ca67f60bc80 Mon Sep 17 00:00:00 2001
From: adman <adman.else@gmail.com>
Date: Thu, 30 Jul 2026 02:37:00 +0200
Subject: [PATCH] add check for bad servers

---
 mc/client/client.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mc/client/client.go b/mc/client/client.go
index a141ff1..af68166 100644
--- a/mc/client/client.go
+++ b/mc/client/client.go
@@ -2,6 +2,7 @@ package client
 
 import (
 	"context"
+	"errors"
 	"net"
 
 	"github.com/admin-else/strom/mc/data"
@@ -21,6 +22,10 @@ func Connect(ctx context.Context, addr string, version string) (ret *proto.Conn,
 		if err != nil {
 			return
 		}
+		if s.Version.Protocol == 0 {
+			err = errors.New("server didnt return protocol version")
+			return
+		}
 		protocolVersion = s.Version.Protocol
 	} else {
 		var v data.VersionInfo