From 12655eb631003dee98b5392686400ea871d9d2ed Mon Sep 17 00:00:00 2001
From: Anton Tananaev <anton.tananaev@gmail.com>
Date: Mon, 29 May 2017 22:36:43 +1200
Subject: Fix GPS 056 frame decoder

---
 src/org/traccar/protocol/Gps056FrameDecoder.java | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/org/traccar')

diff --git a/src/org/traccar/protocol/Gps056FrameDecoder.java b/src/org/traccar/protocol/Gps056FrameDecoder.java
index 7adfddd07..4ce83dc0a 100644
--- a/src/org/traccar/protocol/Gps056FrameDecoder.java
+++ b/src/org/traccar/protocol/Gps056FrameDecoder.java
@@ -33,7 +33,11 @@ public class Gps056FrameDecoder extends FrameDecoder {
         if (buf.readableBytes() >= MESSAGE_HEADER) {
             int length = Integer.parseInt(buf.toString(2, 2, StandardCharsets.US_ASCII)) + 5;
             if (buf.readableBytes() >= length) {
-                return buf.readBytes(length);
+                ChannelBuffer frame = buf.readBytes(length);
+                while (buf.readable() && buf.getUnsignedByte(buf.readerIndex()) != '$') {
+                    buf.readByte();
+                }
+                return frame;
             }
         }
 
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