diff -r 000000000000 -r bde4ae8d615e os/ossrv/genericopenlibs/openenvcore/libc/src/wcrtomb.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/ossrv/genericopenlibs/openenvcore/libc/src/wcrtomb.cpp	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,100 @@
+// 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 "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:
+// Name        : wcrtomb.cpp
+// Part of     : MRT LIBC
+// Contains the source for the wcrtomb API implementation.
+// Version     :
+//
+
+
+
+#include <e32std.h>
+#include <utf.h>
+#include <stdlib.h>
+#include <string.h>
+#include <wchar.h>
+#include <stdio.h>
+
+#include "wcharcnv.h"
+
+#if (defined(__SYMBIAN32__) && (defined(__WINSCW__) || defined(__WINS__)))
+#include "libc_wsd_defs.h"
+#endif 
+
+#ifdef EMULATOR
+
+GET_STATIC_VAR_FROM_TLS(wcrtomb_mbs, mbstate_t)
+#define mbs (*GET_WSD_VAR_NAME(wcrtomb_mbs, s)())
+#endif //EMULATOR
+
+//-----------------------------------------------------------------------------
+//Function Name : size_t wcrtomb (char * mbchar, wchar_t wc, mbstate_t* ps) 
+//Description   : Converts a wide character to a multibyte character
+//Return Value  : return If mbchar is null, the return value is true (non-zero)
+//if multibyte characters have state-dependent encodings, or false (zero) 
+//if they do not.
+//-----------------------------------------------------------------------------
+extern "C" {
+
+EXPORT_C size_t wcrtomb (char * mbchar, wchar_t wc, mbstate_t* ps)
+{
+#ifndef EMULATOR	
+	static mbstate_t mbs;
+#endif //EMULATOR	
+
+	if (ps == NULL)
+		ps = &mbs;
+
+	mbstate_t *state = NULL;
+	if(ps)
+	{
+		state = ps;
+	}
+	else
+	{
+		state =	&mbs;
+	}
+	if (mbchar)
+	{
+		//deal with the special null character case
+		if (L'\0' == wc)
+		{
+			*mbchar = '\0';
+			if ( state )
+    	   	{
+    	   		memset(state,0,sizeof(state));	
+    	    	state->__count = _EUTF16InitialState;
+    	    }
+			return (1);
+		}
+		
+		//return value of 0 is possible if the first half of a surrogate pair seen
+		//crash is possible if mbchar is not at least MB_CUR_MAX bytes long
+		return _Utf16ToUtf8(mbchar,wc, state,MB_CUR_MAX);
+	}
+	//calling with a null dest string is used to initialise shift state
+	//effect is exactly as if internal dst buffer was used.
+	//therefore we always return 1.
+	else
+	{
+	    	if ( state )
+	        {
+	        	memset(state,0,sizeof(state));	
+	        	state->__count = _EUTF16InitialState;
+	        }
+			return (1);
+	}
+} //end of function
+
+} //extern "C"