/** 

 * XML Security Library (http://www.aleksey.com/xmlsec).

 *

 * Base64 encode/decode transform and utility functions.

 *

 * This is free software; see Copyright file in the source

 * distribution for preciese wording.

 * 

 * Copyright (C) 2002-2003 Aleksey Sanin <aleksey@aleksey.com>

 * Portion Copyright © 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. 

 */

#ifndef __XMLSEC_BASE64_H__

#define __XMLSEC_BASE64_H__    

#ifdef __cplusplus

extern "C" {

#endif /* __cplusplus */ 

#include <libxml2_tree.h>

#include "xmlsec_config.h"

#include "xmlsec_xmlsec.h"

#include "xmlsec_transforms.h"

/**

 * XMLSEC_BASE64_LINESIZE:

 *

 * The default maximum base64 encoded line size.

 */

#define XMLSEC_BASE64_LINESIZE				64

/**

 * Base64 Context

 */

typedef struct _xmlSecBase64Ctx 				xmlSecBase64Ctx, 

								*xmlSecBase64CtxPtr;

XMLSEC_EXPORT xmlSecBase64CtxPtr xmlSecBase64CtxCreate		(int encode, 

								 int columns);

XMLSEC_EXPORT void		xmlSecBase64CtxDestroy		(xmlSecBase64CtxPtr ctx);

XMLSEC_EXPORT int		xmlSecBase64CtxInitialize	(xmlSecBase64CtxPtr ctx,

								 int encode, 

								 int columns);

XMLSEC_EXPORT void		xmlSecBase64CtxFinalize		(xmlSecBase64CtxPtr ctx);

XMLSEC_EXPORT int 		xmlSecBase64CtxUpdate		(xmlSecBase64CtxPtr ctx,

								 const xmlSecByte *in, 

						    		 xmlSecSize inSize, 

								 xmlSecByte *out,

								 xmlSecSize outSize);

XMLSEC_EXPORT int		xmlSecBase64CtxFinal		(xmlSecBase64CtxPtr ctx,

								 xmlSecByte *out,

								 xmlSecSize outSize);

/**

 * Standalone routine to do base64 encode/decode "at once"

 */

XMLSEC_EXPORT xmlChar*		xmlSecBase64Encode		(const xmlSecByte *buf,

								 xmlSecSize len,

								 int columns);

XMLSEC_EXPORT int		xmlSecBase64Decode		(const xmlChar* str,

								 xmlSecByte *buf,

								 xmlSecSize len);

#ifdef __cplusplus

}

#endif /* __cplusplus */

#endif /* __XMLSEC_BASE64_H__ */