/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * 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 Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 */
 /* -*- 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"

/* 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(int (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);
MimeDecoderData *MimeQPDecoderInit (int (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);
MimeDecoderData *MimeUUDecoderInit (int (*output_fn) (const char *buf,
													  PRInt32 size,
													  void *closure),
									void *closure);

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