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95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* Public prototypes for base64 encoding/decoding.
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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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