/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef __UTIL_BASE64_H
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#define __UTIL_BASE64_H
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#include <stdint.h>
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#include <string.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* base64_decoder: used for decoding chunked data. All public fields must be
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* initialized before use.
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*/
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struct base64_decoder {
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/*** public */
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const char *src;
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void *dst;
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int src_len; /* <=0 if src ends with '\0' */
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int dst_len; /* <=0 if dst unbounded */
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/*** private */
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char buf[4];
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int buf_len;
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};
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int base64_encode(const void *, int, char *, uint8_t);
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int base64_decode(const char *, void *buf);
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int base64_pad(char *, int);
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int base64_decode_len(const char *str);
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int base64_decode_maxlen(const char *str, void *data, int len);
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/**
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* Decodes base64 data using the provided decoder.
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*/
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int base64_decoder_go(struct base64_decoder *dec);
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#define BASE64_ENCODE_SIZE(__size) (((((__size) - 1) / 3) * 4) + 4)
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#ifdef __cplusplus
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}
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#endif
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#endif /* __UTIL_BASE64_H__ */
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