From aaaee56626455c41c4223434ecb13a576a96687e Mon Sep 17 00:00:00 2001
From: Daniel Seiller <earthnuker@gmail.com>
Date: Wed, 14 Aug 2019 18:28:07 +0200
Subject: [PATCH] Simplify Exploit sector picking

---
 src/mfoc.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/src/mfoc.c b/src/mfoc.c
index 73571ca..80f4f99 100644
--- a/src/mfoc.c
+++ b/src/mfoc.c
@@ -932,11 +932,10 @@ int find_exploit_sector(mftag t)
     fprintf(stdout, "\nWe have all sectors encrypted with the default keys..\n\n");
     return -1;
   }
-  for (i = 0; i < t.num_sectors; i++) {
-    int s=(t.num_sectors-i)-1;
-    if ((t.sectors[s].foundKeyA) || (t.sectors[s].foundKeyB)) {
-      fprintf(stdout, "\n\nUsing sector %02d as an exploit sector\n", s);
-      return s;
+  for (i = t.num_sectors-1; i>=0;--i) {
+    if ((t.sectors[i].foundKeyA) || (t.sectors[i].foundKeyB)) {
+      fprintf(stdout, "\n\nUsing sector %02d as an exploit sector\n", i);
+      return i;
     }
   }
   ERR("\n\nNo sector encrypted with the default key has been found, exiting..");