diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java | 5 | ||||
| -rw-r--r-- | src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java | 3 |
2 files changed, 7 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java index 80e84c156..98f74ac84 100644 --- a/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java +++ b/src/main/java/org/traccar/protocol/Gt06ProtocolDecoder.java @@ -1229,7 +1229,10 @@ public class Gt06ProtocolDecoder extends BaseProtocolDecoder { buf.readUnsignedByte(); // external device type code int length = buf.readableBytes() - 9; // line break + checksum + index + checksum + footer - if (length < 8) { + + if (length <= 0) { + return null; + } else if (length < 8) { position.set( Position.PREFIX_TEMP + 1, Double.parseDouble(buf.readCharSequence(length - 1, StandardCharsets.US_ASCII).toString())); diff --git a/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java b/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java index e6b7b7ce3..d63dc2d9a 100644 --- a/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java +++ b/src/test/java/org/traccar/protocol/Gt06ProtocolDecoderTest.java @@ -17,6 +17,9 @@ public class Gt06ProtocolDecoderTest extends ProtocolTest { verifyNull(decoder, binary( "78780D01086471700328358100093F040D0A")); + verifyNull(decoder, binary( + "797900099b0380d600046f91e90d0a")); + verifyAttribute(decoder, binary( "7979000E9B0332382E33A1E60D0A0289BE490D0A"), Position.PREFIX_TEMP + 1, 28.3); |