From 263ee3a6d280e685e60f72fccf5f9951f709c0c2 Mon Sep 17 00:00:00 2001
From: deleterium <rui.santana@protonmail.com>
Date: Mon, 16 May 2022 14:44:03 -0300
Subject: [PATCH] Fix bug on creationBytes validation

---
 src/brs/at/AtController.java | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/brs/at/AtController.java b/src/brs/at/AtController.java
index b4279d5cf..6c79800c1 100644
--- a/src/brs/at/AtController.java
+++ b/src/brs/at/AtController.java
@@ -160,6 +160,9 @@ public static int checkCreationBytes(byte[] creation, int height, int minCodePag
             b.getLong();
 
             int codeLen = getLength(codePages, b);
+            if (codeLen == 0 && codePages == 1 && version > 2) {
+                codeLen = 256;
+            }
             if (codeLen < minCodePages || codeLen > codePages * 256) {
                 throw new AtException(AtError.INCORRECT_CODE_LENGTH.getDescription());
             }
@@ -167,6 +170,9 @@ public static int checkCreationBytes(byte[] creation, int height, int minCodePag
             b.get(code, 0, codeLen);
 
             int dataLen = getLength(dataPages, b);
+            if (dataLen == 0 && dataPages == 1 && b.capacity() - b.position() == 256 && version > 2) {
+                dataLen = 256;
+            }
             if (dataLen < 0 || dataLen > dataPages * 256) {
                 throw new AtException(AtError.INCORRECT_DATA_LENGTH.getDescription());
             }