From 8987cc85b17d8952a4a31ba9619322f2cbe21bba Mon Sep 17 00:00:00 2001
From: merlokk <807634+merlokk@users.noreply.github.com>
Date: Wed, 20 Feb 2019 18:44:17 +0200
Subject: [PATCH] atr length fix

---
 client/cmdsmartcard.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/client/cmdsmartcard.c b/client/cmdsmartcard.c
index ff85ce02..b0d96f13 100644
--- a/client/cmdsmartcard.c
+++ b/client/cmdsmartcard.c
@@ -804,6 +804,11 @@ static int CmdSmartInfo(const char *Cmd){
 		if (!silent) PrintAndLogEx(WARNING, "smart card select failed");
 		return 1;
 	}
+	
+	if (!card.atr_len) {
+		if (!silent) PrintAndLogEx(ERR, "can't get ATR from a smart card");
+		return 1;
+	}
 
 	// print header
 	PrintAndLogEx(INFO, "--- Smartcard Information ---------");