/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is 
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 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
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 *
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 /* -*- Mode: C; tab-width: 4 -*-
   mimeenc.c --- MIME encoders and decoders, version 2 (see mimei.h)
   Copyright © 1996 Netscape Communications Corporation, all rights reserved.
   Created: Jamie Zawinski <jwz@netscape.com>, 15-May-96.
 */

#ifndef _MIMEENC_H_
#define _MIMEENC_H_

#include "prtypes.h"
#include "nsError.h"

/* This file defines interfaces to generic implementations of Base64, 
   Quoted-Printable, and UU decoders; and of Base64 and Quoted-Printable
   encoders.
 */


/* Opaque objects used by the encoder/decoder to store state. */
typedef struct MimeDecoderData MimeDecoderData;
typedef struct MimeEncoderData MimeEncoderData;


/* functions for creating that opaque data.
 */
MimeDecoderData *MimeB64DecoderInit(nsresult (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);
MimeDecoderData *MimeQPDecoderInit (nsresult (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);
MimeDecoderData *MimeUUDecoderInit (nsresult (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);

MimeEncoderData *MimeB64EncoderInit(nsresult (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);
MimeEncoderData *MimeQPEncoderInit (nsresult (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);
MimeEncoderData *MimeUUEncoderInit (char *filename,
									nsresult (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);

/* Push data through the encoder/decoder, causing the above-provided write_fn
   to be called with encoded/decoded data. */
int MimeDecoderWrite (MimeDecoderData *data, const char *buffer, PRInt32 size);
int MimeEncoderWrite (MimeEncoderData *data, const char *buffer, PRInt32 size);

/* When you're done encoding/decoding, call this to free the data.  If
   abort_p is PR_FALSE, then calling this may cause the write_fn to be called
   one last time (as the last buffered data is flushed out.)
 */
int MimeDecoderDestroy(MimeDecoderData *data, PRBool abort_p);
int MimeEncoderDestroy(MimeEncoderData *data, PRBool abort_p);

#endif /* _MODMIMEE_H_ */