From b378a369d112035306f3135489d027ad0973c4a0 Mon Sep 17 00:00:00 2001
From: Antiklesys <syselkitna@gmail.com>
Date: Mon, 26 May 2025 23:53:33 +0800
Subject: [PATCH] Updated hf iclass tear to break endless read loop

Updated hf iclass tear to break endless read loop when the card can't be read anymore during the tear operation. Set a 10 attempts limit.
---
 client/src/cmdhficlass.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/client/src/cmdhficlass.c b/client/src/cmdhficlass.c
index 41bcaf471..f1da50f14 100644
--- a/client/src/cmdhficlass.c
+++ b/client/src/cmdhficlass.c
@@ -3219,7 +3219,7 @@ static int CmdHFiClass_TearBlock(const char *Cmd) {
         first_read = false;
         reread = false;
         bool decrease = false;
-
+        int readcount = 0;
         while (first_read == false) {
 
             if (kbd_enter_pressed()) {
@@ -3246,6 +3246,12 @@ static int CmdHFiClass_TearBlock(const char *Cmd) {
             } else if (res != PM3_SUCCESS) {
                 decrease = true;
             }
+            if (readcount >= 10){
+                PrintAndLogEx(WARNING, "\n"_RED_("Read failed too many times, giving up"));
+                isok = PM3_EFAILED;
+                goto out;
+            }
+            readcount++;
         }
 
         // if there was an error reading repeat the tearoff with the same delay