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Diffstat (limited to 'security/nss/lib/util/nssb64.h')
-rw-r--r-- | security/nss/lib/util/nssb64.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/security/nss/lib/util/nssb64.h b/security/nss/lib/util/nssb64.h new file mode 100644 index 0000000000..7882c3b2d9 --- /dev/null +++ b/security/nss/lib/util/nssb64.h @@ -0,0 +1,94 @@ +/* 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_ */ |