--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcrypto/source/random/random.cpp	Wed Jul 08 11:25:26 2009 +0100
@@ -0,0 +1,184 @@
+/*
+* Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+* (c) 1999-2003 Symbian Ltd
+*
+*/
+
+
+
+
+/**
+ @file
+*/
+
+#include <e32std.h>
+#include <random.h>
+#include <hash.h>
+#include <e32math.h>
+#include "randsvr.h"
+#include "randcliserv.h"
+
+_LIT(KRandomServerImg,"z:\\system\\libs\\randsvr.exe");		// DLL/EXE name
+_LIT(KRandomServerConnect, "Randsvr connect");
+_LIT(KRandomServerGet, "Randsvr get");
+
+const TUid KServerUid3={0x100066dc};
+
+extern "C" {
+EXPORT_C void RAND_bytes(unsigned char* buf,int bytes)
+	{
+	TPtr8 ptr(buf,bytes,bytes);
+	buf[0]++;
+	TRandom::Random(ptr);
+	}
+}
+
+EXPORT_C CRandom::CRandom(void)
+	{
+	}
+
+EXPORT_C CSystemRandom* CSystemRandom::NewL(void)
+	{
+	CSystemRandom* self = new(ELeave)CSystemRandom();
+	return self;
+	}
+
+EXPORT_C CSystemRandom* CSystemRandom::NewLC(void)
+	{
+	CSystemRandom* self = NewL();
+	CleanupStack::PushL(self);
+	return self;
+	}
+
+void CSystemRandom::GenerateBytesL(TDes8& aDest)
+	{
+	TRandom::RandomL(aDest);
+	}
+
+CSystemRandom::CSystemRandom(void)
+	{
+	}
+
+EXPORT_C void TRandom::Random(TDes8& aDestination)
+	{
+	RRandomSession rs;
+	TRAPD(ret,rs.ConnectL());
+	if (ret)
+		{
+		User::Panic(KRandomServerConnect, ret);
+		}
+	TInt err=rs.GetRandom(aDestination);
+	if (err)
+		{
+		User::Panic(KRandomServerGet, err);
+		}
+	rs.Close();
+	}
+
+EXPORT_C void TRandom::RandomL(TDes8& aDestination)
+	{
+	RRandomSession rs;
+	TRAPD(ret,rs.ConnectL());
+	User::LeaveIfError(ret);
+	CleanupClosePushL(rs);
+
+	TInt err=rs.GetRandom(aDestination);
+	User::LeaveIfError(err);
+
+	CleanupStack::PopAndDestroy(); // rs
+	}
+
+EXPORT_C RRandomSession::RRandomSession(void)
+	{
+	}
+
+static TInt StartServer()
+// Borrowed from AndrewT's server startup code.
+// Start the server process/thread which lives in an EPOCEXE object
+//
+	{
+	
+	const TUidType serverUid(KNullUid,KNullUid,KServerUid3);
+
+	//
+	// EPOC and EKA2 is easy, we just create a new server process. Simultaneous
+	// launching of two such processes should be detected when the second one
+	// attempts to create the server object, failing with KErrAlreadyExists.
+	//
+	RProcess server;
+	TInt r=server.Create(KRandomServerImg, KNullDesC, serverUid);
+
+	if (r!=KErrNone)
+		return r;
+	TRequestStatus stat;
+	server.Rendezvous(stat);
+	if (stat!=KRequestPending)
+		server.Kill(0);		// abort startup
+	else
+		server.Resume();	// logon OK - start the server
+	User::WaitForRequest(stat);		// wait for start or death
+	// we can't use the 'exit reason' if the server panicked as this
+	// is the panic 'reason' and may be '0' which cannot be distinguished
+	// from KErrNone
+	r=(server.ExitType()==EExitPanic) ? KErrGeneral : stat.Int();
+	server.Close();
+	return r;
+
+	}
+
+EXPORT_C void RRandomSession::ConnectL(void)
+	{
+	TInt retry=2;
+	for (;;)
+		{
+		TInt r=CreateSession(KRandomServerName,TVersion(0,0,0),1);
+		if (r!=KErrNotFound && r!=KErrServerTerminated)
+			   User::Leave(r);
+		if (--retry==0)
+			User::Leave(r);
+		r=StartServer();
+		if (r!=KErrNone && r!=KErrAlreadyExists)
+			User::Leave(r);
+		}
+	}
+
+EXPORT_C TInt RRandomSession::GetRandom(TDes8& aDestination)
+	{
+	if (aDestination.Length()<KRandomBlockSize)
+		{
+		return SendReceive(CRandomSession::KRandomRequest,
+		                   TIpcArgs(&aDestination, aDestination.Length()));
+		}
+	else
+		{
+		TInt i;
+		TInt err=KErrNone;
+		TInt length=aDestination.Length();
+		for (i=0;(i+KRandomBlockSize)<length;i+=KRandomBlockSize)
+			{
+			TPtr8 buffer(&aDestination[i],KRandomBlockSize,KRandomBlockSize);
+			err=SendReceive(CRandomSession::KRandomRequest,
+			 				TIpcArgs(&buffer, KRandomBlockSize));
+			if (err)
+				{
+				return err;
+				}
+			}
+		TPtr8 buffer(&aDestination[i],length%KRandomBlockSize,KRandomBlockSize);
+		err=SendReceive(CRandomSession::KRandomRequest,
+						TIpcArgs(&buffer, length-i));
+		return err;
+		}
+	}