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129 lines
4.6 KiB
C
129 lines
4.6 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1994-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* Public prototypes for base64 encoding/decoding.
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*
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* $Id: nssb64.h,v 1.5 2008/06/14 14:20:38 wtc%google.com Exp $
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*/
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#ifndef _NSSB64_H_
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#define _NSSB64_H_
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#include "utilrename.h"
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#include "seccomon.h"
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#include "nssb64t.h"
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SEC_BEGIN_PROTOS
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/*
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* Functions to start a base64 decoding/encoding context.
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*/
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extern NSSBase64Decoder *
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NSSBase64Decoder_Create (PRInt32 (*output_fn) (void *, const unsigned char *,
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PRInt32),
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void *output_arg);
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extern NSSBase64Encoder *
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NSSBase64Encoder_Create (PRInt32 (*output_fn) (void *, const char *, PRInt32),
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void *output_arg);
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/*
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* Push data through the decoder/encoder, causing the output_fn (provided
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* to Create) to be called with the decoded/encoded data.
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*/
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extern SECStatus
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NSSBase64Decoder_Update (NSSBase64Decoder *data, const char *buffer,
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PRUint32 size);
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extern SECStatus
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NSSBase64Encoder_Update (NSSBase64Encoder *data, const unsigned char *buffer,
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PRUint32 size);
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/*
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* When you're done processing, call this to close the context.
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* If "abort_p" is false, then calling this may cause the output_fn
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* to be called one last time (as the last buffered data is flushed out).
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*/
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extern SECStatus
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NSSBase64Decoder_Destroy (NSSBase64Decoder *data, PRBool abort_p);
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extern SECStatus
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NSSBase64Encoder_Destroy (NSSBase64Encoder *data, PRBool abort_p);
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/*
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* Perform base64 decoding from an ascii string "inStr" to an Item.
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* The length of the input must be provided as "inLen". The Item
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* may be provided (as "outItemOpt"); you can also pass in a NULL
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* and the Item will be allocated for you.
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*
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* In any case, the data within the Item will be allocated for you.
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* All allocation will happen out of the passed-in "arenaOpt", if non-NULL.
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* If "arenaOpt" is NULL, standard allocation (heap) will be used and
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* you will want to free the result via SECITEM_FreeItem.
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*
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* Return value is NULL on error, the Item (allocated or provided) otherwise.
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*/
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extern SECItem *
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NSSBase64_DecodeBuffer (PLArenaPool *arenaOpt, SECItem *outItemOpt,
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const char *inStr, unsigned int inLen);
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/*
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* Perform base64 encoding of binary data "inItem" to an ascii string.
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* The output buffer may be provided (as "outStrOpt"); you can also pass
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* in a NULL and the buffer will be allocated for you. The result will
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* be null-terminated, and if the buffer is provided, "maxOutLen" must
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* specify the maximum length of the buffer and will be checked to
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* supply sufficient space space for the encoded result. (If "outStrOpt"
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* is NULL, "maxOutLen" is ignored.)
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*
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* If "outStrOpt" is NULL, allocation will happen out of the passed-in
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* "arenaOpt", if *it* is non-NULL, otherwise standard allocation (heap)
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* will be used.
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*
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* Return value is NULL on error, the output buffer (allocated or provided)
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* otherwise.
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*/
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extern char *
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NSSBase64_EncodeItem (PLArenaPool *arenaOpt, char *outStrOpt,
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unsigned int maxOutLen, SECItem *inItem);
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SEC_END_PROTOS
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#endif /* _NSSB64_H_ */
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