From e9c858d43fd0dd1df2ed411ef04be7b564085ef4 Mon Sep 17 00:00:00 2001
From: James Mills <1290234+prologic@users.noreply.github.com>
Date: Sat, 16 Mar 2019 12:16:23 +1000
Subject: [PATCH] Add CRC Checksum checks on reading values back

---
 bitcask.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bitcask.go b/bitcask.go
index 8427c66..625fb23 100644
--- a/bitcask.go
+++ b/bitcask.go
@@ -2,6 +2,7 @@ package bitcask
 
 import (
 	"fmt"
+	"hash/crc32"
 	"io"
 	"io/ioutil"
 	"os"
@@ -61,6 +62,11 @@ func (b *Bitcask) Get(key string) ([]byte, error) {
 		return nil, err
 	}
 
+	crc := crc32.ChecksumIEEE(e.Value)
+	if crc != e.CRC {
+		return nil, fmt.Errorf("error: crc checksum falied %s %d != %d", key, e.CRC, crc)
+	}
+
 	return e.Value, nil
 }