From 24502966ceeb4057e4ad79352e2e8d0b48bb228f Mon Sep 17 00:00:00 2001
From: Pol Henarejos <pol.henarejos@cttc.es>
Date: Tue, 24 May 2022 20:41:04 +0200
Subject: [PATCH] Fix finding meta_data.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
---
 src/fs/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fs/file.c b/src/fs/file.c
index a6c2151..a6711c7 100644
--- a/src/fs/file.c
+++ b/src/fs/file.c
@@ -87,7 +87,7 @@ void process_fci(const file_t *pe) {
     res_APDU_size += 3;
     uint8_t *meta_data = NULL;
     uint8_t meta_size = meta_find(pe->fid, &meta_data);
-    if (meta_size) {
+    if (meta_size > 0 && meta_data != NULL) {
         res_APDU[res_APDU_size++] = 0xA5;
         res_APDU[res_APDU_size++] = 0x81;
         res_APDU[res_APDU_size++] = meta_size;