diff options
| -rw-r--r-- | eth/downloader/downloader.go | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/eth/downloader/downloader.go b/eth/downloader/downloader.go index b0d55bc44..af9b6b2b1 100644 --- a/eth/downloader/downloader.go +++ b/eth/downloader/downloader.go @@ -165,6 +165,10 @@ func (d *Downloader) Synchronise(id string, hash common.Hash) error { } defer atomic.StoreInt32(&d.synchronising, 0) + // If the head hash is banned, terminate immediately + if d.banned.Has(hash) { + return ErrInvalidChain + } // Post a user notification of the sync (only once per session) if atomic.CompareAndSwapInt32(&d.notified, 0, 1) { glog.V(logger.Info).Infoln("Block synchronisation started") |