added util.h include to avoid implicit function declaration

[proxmark3-svn] / armsrc / hitag2.h

diff --git a/armsrc/hitag2.h b/armsrc/hitag2.h
index 985b6796108cc9473376226ce7e31c3505623f24..7606e2ceb8380e169dafd5829380ee27d44eb5f5 100644 (file)
--- a/armsrc/hitag2.h
+++ b/armsrc/hitag2.h
@@ -1,10 +1,19 @@
-/*
- * Hitag2 emulation public interface
- * 
- * (c) 2009 Henryk Plötz <henryk@ploetzli.ch>
- */
+//-----------------------------------------------------------------------------
+// (c) 2009 Henryk Plötz <henryk@ploetzli.ch>
+//
+// 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.
+//-----------------------------------------------------------------------------
+// Hitag2 emulation public interface
+//-----------------------------------------------------------------------------
+
+#ifndef __HITAG2_H
+#define __HITAG2_H
 
 typedef int (*hitag2_response_callback_t)(const char* response_data, const int response_length, const int fdt, void *cb_cookie);
 
 extern int hitag2_init(void);
 extern int hitag2_handle_command(const char* data, const int length, hitag2_response_callback_t cb, void *cb_cookie);
+
+#endif