ADD: first try to implement crc-16 for Legic Advant *not working yet* Can't verify it.

[proxmark3-svn] / client / loclass / ikeys.c

diff --git a/client/loclass/ikeys.c b/client/loclass/ikeys.c
index b21ecdbc028f96bdc0ae95cc08f65d9f7c7c6099..73da2ce6cd686b7bd0320c090a2531f2f19053a3 100644 (file)
--- a/client/loclass/ikeys.c
+++ b/client/loclass/ikeys.c
@@ -740,14 +740,15 @@ int readKeyFile(uint8_t key[8])
        FILE *f;
        int retval = 1;
        f = fopen("iclass_key.bin", "rb");
-       if (f)
-       {
-               if(fread(key, sizeof(uint8_t), 8, f) == 1) 
-               {
-                       retval = 0;     
-               }
-               fclose(f);
+       if (!f) {
+               return 0;
+       }
+       
+       size_t bytes_read = fread(key, sizeof(uint8_t), 8, f);
+       if ( bytes_read == 1) {
+               retval = 0;     
        }
+       fclose(f);
        return retval;
 }
 
@@ -758,11 +759,9 @@ int doKeyTests(uint8_t debuglevel)
 
        prnlog("[+] Checking if the master key is present (iclass_key.bin)...");
        uint8_t key[8] = {0};
-       if(readKeyFile(key))
-       {
+       if(readKeyFile(key)) {
                prnlog("[+] Master key not present, will not be able to do all testcases");
-       }else
-       {
+       } else {
 
                //Test if it's the right key...
                uint8_t i;