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nssb64.h
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/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ /* * Public prototypes for base64 encoding/decoding. */ #ifndef _NSSB64_H_ #define _NSSB64_H_ #include "utilrename.h" #include "seccomon.h" #include "nssb64t.h" SEC_BEGIN_PROTOS /* * Functions to start a base64 decoding/encoding context. */ extern NSSBase64Decoder * NSSBase64Decoder_Create(PRInt32 (*output_fn)(void *, const unsigned char *, PRInt32), void *output_arg); extern NSSBase64Encoder * NSSBase64Encoder_Create(PRInt32 (*output_fn)(void *, const char *, PRInt32), void *output_arg); /* * Push data through the decoder/encoder, causing the output_fn (provided * to Create) to be called with the decoded/encoded data. */ extern SECStatus NSSBase64Decoder_Update(NSSBase64Decoder *data, const char *buffer, PRUint32 size); extern SECStatus NSSBase64Encoder_Update(NSSBase64Encoder *data, const unsigned char *buffer, PRUint32 size); /* * When you're done processing, call this to close the context. * If "abort_p" is false, then calling this may cause the output_fn * to be called one last time (as the last buffered data is flushed out). */ extern SECStatus NSSBase64Decoder_Destroy(NSSBase64Decoder *data, PRBool abort_p); extern SECStatus NSSBase64Encoder_Destroy(NSSBase64Encoder *data, PRBool abort_p); /* * Perform base64 decoding from an ascii string "inStr" to an Item. * The length of the input must be provided as "inLen". The Item * may be provided (as "outItemOpt"); you can also pass in a NULL * and the Item will be allocated for you. * * In any case, the data within the Item will be allocated for you. * All allocation will happen out of the passed-in "arenaOpt", if non-NULL. * If "arenaOpt" is NULL, standard allocation (heap) will be used and * you will want to free the result via SECITEM_FreeItem. * * Return value is NULL on error, the Item (allocated or provided) otherwise. */ extern SECItem * NSSBase64_DecodeBuffer(PLArenaPool *arenaOpt, SECItem *outItemOpt, const char *inStr, unsigned int inLen); /* * Perform base64 encoding of binary data "inItem" to an ascii string. * The output buffer may be provided (as "outStrOpt"); you can also pass * in a NULL and the buffer will be allocated for you. The result will * be null-terminated, and if the buffer is provided, "maxOutLen" must * specify the maximum length of the buffer and will be checked to * supply sufficient space space for the encoded result. (If "outStrOpt" * is NULL, "maxOutLen" is ignored.) * * If "outStrOpt" is NULL, allocation will happen out of the passed-in * "arenaOpt", if *it* is non-NULL, otherwise standard allocation (heap) * will be used. * * Return value is NULL on error, the output buffer (allocated or provided) * otherwise. */ extern char * NSSBase64_EncodeItem(PLArenaPool *arenaOpt, char *outStrOpt, unsigned int maxOutLen, SECItem *inItem); SEC_END_PROTOS #endif /* _NSSB64_H_ */