From 59921d41b5e1e43c8930e2b335c712691b5ecaa3 Mon Sep 17 00:00:00 2001
From: xucheng liu <65992658+cyberpunk-admin@users.noreply.github.com>
Date: Sun, 13 Jul 2025 23:07:23 +0800
Subject: [PATCH] fix: return actual validated bytes on checksum mismatch

---
 internal/transfer/block_read_stream.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/internal/transfer/block_read_stream.go b/internal/transfer/block_read_stream.go
index d86dd5e6..11e586ef 100644
--- a/internal/transfer/block_read_stream.go
+++ b/internal/transfer/block_read_stream.go
@@ -109,7 +109,7 @@ func (s *blockReadStream) Read(b []byte) (int, error) {
 
 		err := s.validateChecksum(b[chunkOff:chunkEnd])
 		if err != nil {
-			return n, err
+			return chunkOff, err
 		}
 
 		s.chunkIndex++