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diff --git a/src/uuid.hpp b/src/uuid.hpp
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+++ b/src/uuid.hpp
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+/*
+    Copyright (c) 2007-2009 FastMQ Inc.
+
+    This file is part of 0MQ.
+
+    0MQ is free software; you can redistribute it and/or modify it under
+    the terms of the Lesser GNU General Public License as published by
+    the Free Software Foundation; either version 3 of the License, or
+    (at your option) any later version.
+
+    0MQ 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
+    Lesser GNU General Public License for more details.
+
+    You should have received a copy of the Lesser GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __ZS_UUID_HPP_INCLUDED__
+#define __ZS_UUID_HPP_INCLUDED__
+
+#include "platform.hpp"
+
+#if defined ZS_HAVE_WINDOWS
+#include <rpcdce.h>
+#elif defined ZS_HAVE_FREEBSD
+#include <uuid.h>
+#elif defined ZS_HAVE_LINUX || defined ZS_HAVE_SOLARIS || defined ZS_HAVE_OSX
+#include <uuid/uuid.h>
+#else
+#include <stdint.h>
+#endif
+
+namespace zs
+{
+
+    //  This class provides RFC 4122 (a Universally Unique IDentifier)
+    //  implementation.
+
+    class uuid_t
+    {
+    public:
+
+        uuid_t ();
+        ~uuid_t ();
+
+        //  Returns a pointer to buffer containing the textual
+        //  representation of the UUID. The caller is reponsible to
+        //  free the allocated memory.
+        const char *to_string ();
+
+    private:
+
+        //  The length of textual representation of UUID.
+        enum { uuid_string_len = 36 };
+
+#if defined ZS_HAVE_WINDOWS
+        ::UUID uuid;
+        char *uuid_str;
+#elif defined ZS_HAVE_FREEBSD
+        ::uuid_t uuid;
+        char *uuid_str;
+#elif defined ZS_HAVE_LINUX || defined ZS_HAVE_SOLARIS || defined ZS_HAVE_OSX
+        ::uuid_t uuid;
+        char uuid_buf [uuid_string_len + 1];
+#else
+        //  RFC 4122 UUID's fields
+        uint32_t time_low;
+        uint16_t time_mid;
+        uint16_t time_hi_and_version;
+        uint8_t clock_seq_hi_and_reserved;
+        uint8_t clock_seq_low;
+        uint8_t node [6];
+
+        char uuid_buf [uuid_string_len + 1];
+#endif
+    };
+
+}
+
+#endif