client/cmdlfem4x.c: Fix a warning about probable uninitialized variable with gcc 4.4

[proxmark3-svn] / client / cmdlfem4x.c

diff --git a/client/cmdlfem4x.c b/client/cmdlfem4x.c
index 52d407ab49271ae85221019e801e5fb4c596361b..8bb4d1091e08ed3ea463a02796d12aa66da1f1a4 100644 (file)
--- a/client/cmdlfem4x.c
+++ b/client/cmdlfem4x.c
@@ -1,3 +1,13 @@
+//-----------------------------------------------------------------------------
+// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Low frequency EM4x commands
+//-----------------------------------------------------------------------------
+
 #include <stdio.h>
 #include "proxusb.h"
 #include "ui.h"
@@ -235,16 +245,11 @@ int CmdEM410xSim(const char *Cmd)
  * looped until an EM410x tag is detected */
 int CmdEM410xWatch(const char *Cmd)
 {
-  char *zero = "";
-  char *twok = "2000";
-
-  int stop = 0;
   do
   {
-    CmdLFRead(zero);
-    CmdLFSamples(twok);
-    stop = CmdEM410xRead(zero);
-  } while (!stop);
+    CmdLFRead("");
+    CmdSamples("2000");
+  } while ( ! CmdEM410xRead(""));
   return 0;
 }
 
@@ -276,6 +281,7 @@ int CmdEM4x50Read(const char *Cmd)
 
   high= low= 0;
   clock= 64;
+  memset(tmpbuff, 0, MAX_GRAPH_TRACE_LEN / 64);
 
   /* first get high and low values */
   for (i = 0; i < GraphTraceLen; i++)