bugfix: isNotValid should return true if invalid

terminal2 · Jan 7, 2022 · d5e07f7 · d5e07f7
1 parent 321cbf9
commit d5e07f7
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/main/java/aero/t2s/modes/decoder/Common.java b/src/main/java/aero/t2s/modes/decoder/Common.java
@@ -106,8 +106,10 @@ public static short[] getParity(short[] data) {
  }
 
  public static boolean isNotValid(short[] data) {
+ // fixes negative length bug where data is only 2 bytes (16bit Mode A/C replies, ACAS, ...)
+ // examples: *21D2; *0200; *0101; <- only the 2 bytes are in data variable
  if(data.length < 3) {
- return false; // fixes negative length bug where data is only 2 bytes (16bit Mode A/C replies, ACAS, ...)
+ return true;
  }
  short[] payload = Arrays.copyOfRange(data, 0, data.length - 3);
  short[] parity = Arrays.copyOfRange(data, data.length - 3, data.length);