From a07a0935fe88a9202e75b01c96ded4a910ba1597 Mon Sep 17 00:00:00 2001
From: aarshkshah1992 <aarshkshah1992@gmail.com>
Date: Tue, 6 Jul 2021 09:31:52 +0530
Subject: [PATCH] fix bug in CAR generation

---
 node/impl/client/import.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/node/impl/client/import.go b/node/impl/client/import.go
index 1d1440d08..475dca1a6 100644
--- a/node/impl/client/import.go
+++ b/node/impl/client/import.go
@@ -141,6 +141,11 @@ func transformCarToCARv2(inputCARPath string, outputCARv2Path string) (root cid.
 		return cid.Undef, xerrors.New("cannot import CAR with more than one root")
 	}
 
+	// we read the file to read the header -> seek to the start again to be able to read again.
+	if _, err := inputF.Seek(0, io.SeekStart); err != nil {
+		return cid.Undef, xerrors.Errorf("failed to seek to start of input CAR: %w", err)
+	}
+
 	switch hd.Version {
 	case 2: