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https://github.com/bluekitchen/btstack.git
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93 lines
3.0 KiB
C
93 lines
3.0 KiB
C
/*
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* Copyright (C) 2018 BlueKitchen GmbH
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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* 4. Any redistribution, use, or modification is done solely for
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* personal benefit and not for any commercial purpose or for
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* monetary gain.
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*
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* THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
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* GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Please inquire about commercial licensing options at
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* contact@bluekitchen-gmbh.com
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*
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*/
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/**
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* @title base64 Decoder
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*
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*/
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#ifndef BTSTACK_BASE_64_DECODER_H
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#define BTSTACK_BASE_64_DECODER_H
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#include <stdint.h>
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#if defined __cplusplus
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extern "C" {
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#endif
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typedef struct {
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uint8_t pos;
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uint8_t value;
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} btstack_base64_decoder_t;
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/* API_START */
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#define BTSTACK_BASE64_DECODER_MORE -1
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#define BTSTACK_BASE64_DECODER_COMPLETE -2
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#define BTSTACK_BASE64_DECODER_INVALID -3
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#define BTSTACK_BASE64_DECODER_FULL -4
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/**
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* @brief Initialize base64 decoder
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* @param context
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*/
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void btstack_base64_decoder_init(btstack_base64_decoder_t * context);
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/**
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* @brief Decode single byte
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* @brief context
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* @return value, or BTSTACK_BASE64_DECODER_MORE, BTSTACK_BASE64_DECODER_COMPLETE, BTSTACK_BASE64_DECODER_INVALID
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*/
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int btstack_base64_decoder_process_byte(btstack_base64_decoder_t * context, uint8_t c);
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/**
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* @brief Decode block
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* @brief input_data base64 encoded message
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* @brief input_size
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* @breif output_buffer
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* @brief output_max_size
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* @return output_size or BTSTACK_BASE64_DECODER_INVALID, BTSTACK_BASE64_DECODER_FULL
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*/
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int btstack_base64_decoder_process_block(const uint8_t * input_data, uint32_t input_size, uint8_t * output_buffer, uint32_t output_max_size);
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/* API_END */
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#if defined __cplusplus
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}
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#endif
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#endif // BTSTACK_BASE_64_DECODER_H
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