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-rw-r--r--src/org/traccar/protocol/TotemFrameDecoder.java10
1 files changed, 9 insertions, 1 deletions
diff --git a/src/org/traccar/protocol/TotemFrameDecoder.java b/src/org/traccar/protocol/TotemFrameDecoder.java
index d6a456850..83c328173 100644
--- a/src/org/traccar/protocol/TotemFrameDecoder.java
+++ b/src/org/traccar/protocol/TotemFrameDecoder.java
@@ -39,7 +39,15 @@ public class TotemFrameDecoder extends FrameDecoder {
buf.readerIndex(beginIndex);
}
- int length = Integer.parseInt(buf.toString(buf.readerIndex() + 2, 2, Charset.defaultCharset()), 16);
+ int length;
+
+ int flagIndex = buf.indexOf(buf.readerIndex(), buf.writerIndex(), new StringFinder("AA"));
+ if (flagIndex != -1 && flagIndex - beginIndex == 6) {
+ length = Integer.parseInt(buf.toString(buf.readerIndex() + 2, 4, Charset.defaultCharset()));
+ } else {
+ length = Integer.parseInt(buf.toString(buf.readerIndex() + 2, 2, Charset.defaultCharset()), 16);
+ }
+
if (length <= buf.readableBytes()) {
return buf.readBytes(length);
}