From 214bb46e9c073c7e7479c34372c516fca121d58a Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Sun, 5 Apr 2020 16:59:14 +0200
Subject: [PATCH] fix: hf mfu ndef - ul ev1 48 bytes with a NDEF otp. e1101200,
  max size mismatch.  Now it will select smallest

---
 client/cmdhfmfu.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/client/cmdhfmfu.c b/client/cmdhfmfu.c
index 1f97c6b36..7c204f861 100644
--- a/client/cmdhfmfu.c
+++ b/client/cmdhfmfu.c
@@ -2781,7 +2781,20 @@ static int CmdHF14MfuNDEF(const char *Cmd) {
         // max datasize;
         maxsize = ndef_get_maxsize(data + 12);
     }
-
+    
+    // iceman: maybe always take MIN of tag identified size vs NDEF reported size?
+    // fix: UL_EV1 48bytes != NDEF reported size
+    for (uint8_t i = 0; i < ARRAYLEN(UL_TYPES_ARRAY); i++) {
+        if (tagtype & UL_TYPES_ARRAY[i]) {
+            
+            if (maxsize != (UL_MEMORY_ARRAY[i] * 4) ) {
+                PrintAndLogEx(INFO, "Tag reported size vs NDEF reported size mismatch. Using smallest value");
+            }
+            maxsize = MIN(maxsize, (UL_MEMORY_ARRAY[i] * 4));
+            break;
+        }
+    }
+                
     // allocate mem
     uint8_t *records = calloc(maxsize, sizeof(uint8_t));
     if (records == NULL) {