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diff --git a/libuuid/src/uuidP.h b/libuuid/src/uuidP.h
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+/*
+ * uuid.h -- private header file for uuids
+ *
+ * Copyright (C) 1996, 1997 Theodore Ts'o.
+ *
+ * %Begin-Header%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, and the entire permission notice in its entirety,
+ *    including the disclaimer of warranties.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
+ * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * %End-Header%
+ */
+
+#include <inttypes.h>
+#include <sys/types.h>
+
+#include "uuid.h"
+
+#define LIBUUID_CLOCK_FILE	"/var/lib/libuuid/clock.txt"
+
+/*
+ * Offset between 15-Oct-1582 and 1-Jan-70
+ */
+#define TIME_OFFSET_HIGH 0x01B21DD2
+#define TIME_OFFSET_LOW  0x13814000
+
+/*
+ * Note that RFC4122 defines UUID in more details:
+ *
+ *     Field               Data Type     Octet  Note
+ * -------------------------------------------------
+ *  time_low               unsigned 32   0-3    The low field of the
+ *                         bit integer          timestamp
+ *
+ *  time_mid               unsigned 16   4-5    The middle field of the
+ *                         bit integer          timestamp
+ *
+ *  time_hi_and_version    unsigned 16   6-7    The high field of the
+ *                         bit integer          timestamp multiplexed
+ *                                              with the version number
+ *
+ *  clock_seq_hi_and_rese  unsigned 8    8      The high field of the
+ *  rved                   bit integer          clock sequence
+ *                                              multiplexed with the
+ *                                              variant
+ *
+ *  clock_seq_low          unsigned 8    9      The low field of the
+ *                         bit integer          clock sequence
+ *
+ *  node                   unsigned 48   10-15  The spatially unique
+ *                         bit integer          node identifier
+ *
+ * We have clock_seq_hi_and_reserved (8bit) and clock_seq_low (8bit)
+ * merged into clock_seq (16bit).
+ */
+struct uuid {
+	uint32_t	time_low;
+	uint16_t	time_mid;
+	uint16_t	time_hi_and_version;
+	uint16_t	clock_seq;
+	uint8_t	node[6];
+};
+
+
+/*
+ * prototypes
+ */
+void uuid_pack(const struct uuid *uu, uuid_t ptr);
+void uuid_unpack(const uuid_t in, struct uuid *uu);