From ee1dbcf048a922b6023b0714989b454b7dfe9587 Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Sun, 2 Feb 2020 15:36:54 -0800
Subject: Fix merge issues

---
 src/main/java/org/traccar/helper/Checksum.java | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/main/java/org/traccar/helper')

diff --git a/src/main/java/org/traccar/helper/Checksum.java b/src/main/java/org/traccar/helper/Checksum.java
index adfa697c5..d41dc2992 100644
--- a/src/main/java/org/traccar/helper/Checksum.java
+++ b/src/main/java/org/traccar/helper/Checksum.java
@@ -168,6 +168,14 @@ public final class Checksum {
         return checksum;
     }
 
+    public static int modulo256(ByteBuffer buf) {
+        int checksum = 0;
+        while (buf.hasRemaining()) {
+            checksum = (checksum + buf.get()) & 0xFF;
+        }
+        return checksum;
+    }
+
     public static String sum(String msg) {
         byte checksum = 0;
         for (byte b : msg.getBytes(StandardCharsets.US_ASCII)) {
-- 
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