New commandline args are clearer, and prepare for compression.

utility/include/bmpblk_util.h

Index: utility/include/bmpblk_util.h
diff --git a/utility/include/bmpblk_util.h b/utility/include/bmpblk_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..6a2f92bc8948fddafe11e7458bfa74c42f2e06b9
--- /dev/null
+++ b/utility/include/bmpblk_util.h
@@ -0,0 +1,13 @@
+// Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef VBOOT_REFERENCE_BMPBLK_UTIL_H_
+#define VBOOT_REFERENCE_BMPBLK_UTIL_H_
+
+#include "bmpblk_header.h"
+
+int display_bmpblock(const char *infile);
+int extract_bmpblock(const char *infile, const char *dirname, int force);
+
+#endif // VBOOT_REFERENCE_BMPBLK_UTIL_H_