more verification on FDX-B tag demod - reduce...

[proxmark3-svn] / client / cmddata.c

diff --git a/client/cmddata.c b/client/cmddata.c
index bec1b5aa3f4d4394f011394fa61edca5b9a06767..bf10a6ec145e96e54a4ea4e42403138d0eca6b20 100644 (file)
--- a/client/cmddata.c
+++ b/client/cmddata.c
@@ -1491,9 +1491,9 @@ int CmdFDXBdemodBI(const char *Cmd){
 
        setDemodBuf(BitStream, 128, preambleIndex);
 
 
        setDemodBuf(BitStream, 128, preambleIndex);
 

-       // remove but don't verify parity. (pType = 2)
+       // remove marker bits (1's every 9th digit after preamble) (pType = 2)

        size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);
        size = removeParity(BitStream, preambleIndex + 11, 9, 2, 117);

-       if ( size <= 103 ) {
+       if ( size != 104 ) {

                if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
                return 0;
        }
                if (g_debugMode) PrintAndLog("Error removeParity:: %d", size);
                return 0;
        }