+
+ // try to see if card responses to "chinese magic backdoor" commands.
+ c.cmd = CMD_MIFARE_CIDENT;
+ c.arg[0] = 0;
+ c.arg[1] = 0;
+ c.arg[2] = 0;
+ SendCommand(&c);
+ WaitForResponse(CMD_ACK,&resp);
+ uint8_t isOK = resp.arg[0] & 0xff;
+ PrintAndLog(" Answers to chinese magic backdoor commands: %s", (isOK ? "YES" : "NO") );
+
+ // disconnect
+ c.cmd = CMD_READER_ISO_14443a;
+ c.arg[0] = 0;
+ c.arg[1] = 0;
+ c.arg[2] = 0;
+ SendCommand(&c);
+