From d633340a1a49b62fc9abfcb34b3cadff516821ee Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Wed, 1 Apr 2020 09:26:39 +0200
Subject: [PATCH] Chg: 'data ndef' - cleaner output if called with no hex

---
 client/cmddata.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/client/cmddata.c b/client/cmddata.c
index cf6d9b2e6..74c33da55 100644
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -2309,8 +2309,9 @@ static int CmdDataNDEF(const char *Cmd) {
     int datalen = 0;
     uint8_t data[MAX_NDEF_LEN] = {0};
     CLIGetHexWithReturn(1, data, &datalen);
-    
     CLIParserFree();
+    if (datalen == 0)
+        return PM3_EINVARG;
 
     PrintAndLogEx(INFO, "Parsed NDEF Records");
     return NDEFRecordsDecodeAndPrint(data, datalen);