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diff --git a/lib/qrand.h b/lib/qrand.h
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+/* Pseudo Random Sequence  -- Header
+ * Copyright (C) 2010 Chris Hall (GMCH), Highwayman
+ *
+ * This file is part of GNU Zebra.
+ *
+ * GNU Zebra is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2, or (at your
+ * option) any later version.
+ *
+ * GNU Zebra is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Zebra; see the file COPYING.  If not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _ZEBRA_QRAND_H
+#define _ZEBRA_QRAND_H
+
+#include "misc.h"
+
+/*==============================================================================
+ * Simple 32 bit random sequence.
+ *
+ * Produces 32-bit signed integers in 0..0x7FFF_FFFF.
+ *
+ * Object of the exercise is to be able to produce repeatable sequence, so can
+ * debug !
+ */
+
+struct qrand_seq
+{
+  uint  last ;
+} ;
+
+typedef struct qrand_seq* qrand_seq ;
+typedef struct qrand_seq  qrand_seq_t[1] ;
+
+#define QRAND_SEQ_INIT(s) { { s } }
+
+/*==============================================================================
+ * Functions
+ */
+
+extern int qrand(qrand_seq seq, int range) ;
+
+#endif /* _ZEBRA_QRAND_H */