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-rw-r--r--swarm/network/stream/messages.go14
1 files changed, 10 insertions, 4 deletions
diff --git a/swarm/network/stream/messages.go b/swarm/network/stream/messages.go
index 0332322f4..117f88044 100644
--- a/swarm/network/stream/messages.go
+++ b/swarm/network/stream/messages.go
@@ -26,7 +26,7 @@ import (
bv "github.com/ethereum/go-ethereum/swarm/network/bitvector"
"github.com/ethereum/go-ethereum/swarm/spancontext"
"github.com/ethereum/go-ethereum/swarm/storage"
- opentracing "github.com/opentracing/opentracing-go"
+ "github.com/opentracing/opentracing-go"
)
var syncBatchTimeout = 30 * time.Second
@@ -195,10 +195,16 @@ func (p *Peer) handleOfferedHashesMsg(ctx context.Context, req *OfferedHashesMsg
if err != nil {
return err
}
+
hashes := req.Hashes
- want, err := bv.New(len(hashes) / HashSize)
+ lenHashes := len(hashes)
+ if lenHashes%HashSize != 0 {
+ return fmt.Errorf("error invalid hashes length (len: %v)", lenHashes)
+ }
+
+ want, err := bv.New(lenHashes / HashSize)
if err != nil {
- return fmt.Errorf("error initiaising bitvector of length %v: %v", len(hashes)/HashSize, err)
+ return fmt.Errorf("error initiaising bitvector of length %v: %v", lenHashes/HashSize, err)
}
ctr := 0
@@ -206,7 +212,7 @@ func (p *Peer) handleOfferedHashesMsg(ctx context.Context, req *OfferedHashesMsg
ctx, cancel := context.WithTimeout(ctx, syncBatchTimeout)
ctx = context.WithValue(ctx, "source", p.ID().String())
- for i := 0; i < len(hashes); i += HashSize {
+ for i := 0; i < lenHashes; i += HashSize {
hash := hashes[i : i+HashSize]
if wait := c.NeedData(ctx, hash); wait != nil {