1 files changed, 59 insertions, 0 deletions
diff --git a/src/utility/random.cpp b/src/utility/random.cpp
new file mode 100644
index 00000000..6896d83c
--- /dev/null
+++ b/src/utility/random.cpp
@@ -0,0 +1,59 @@
+//
+// VMime library (http://vmime.sourceforge.net)
+// Copyright (C) 2002-2004 Vincent Richard <[email protected]>
+//
+// This program 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 of
+// the License, or (at your option) any later version.
+//
+// This program 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 this program; if not, write to the Free Software
+// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+#include "random.hpp"
+#include "platformDependant.hpp"
+
+#include <ctime>
+
+
+namespace vmime {
+namespace utility {
+
+
+unsigned int random::m_next(static_cast<unsigned int>(::std::time(NULL)));
+
+
+const unsigned int random::next()
+{
+	// Park and Miller's minimal standard generator:
+	// xn+1 = (a * xn + b) mod c
+	// xn+1 = (16807 * xn) mod (2^31 - 1)
+	static const unsigned long a = 16807;
+	static const unsigned long c = (1 << ((sizeof(int) << 3) - 1));
+
+	m_next = static_cast<unsigned int>((a * m_next) % c);
+	return (m_next);
+}
+
+
+const unsigned int random::time()
+{
+	return (platformDependant::getHandler()->getUnixTime());
+}
+
+
+const unsigned int random::process()
+{
+	return (platformDependant::getHandler()->getProcessId());
+}
+
+
+} // utility
+} // vmime