71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
// Copyright 2023 Dexter.Wan. All Rights Reserved.
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// EMail: 45141961@qq.com
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#if !defined(BASE64_H)
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#define BASE64_H
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/** type for size of a buffer, it saves passing around @p size_t (unsigned long long or unsigned long int) */
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typedef unsigned int b64_size_t;
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/** type for raw base64 data */
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typedef unsigned char b64_data_t;
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/**
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* Decodes base64 data
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*
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* @param[out] out decoded data
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* @param[in] out_len length of output buffer
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* @param[in] in base64 string to decode
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* @param[in] in_len length of input buffer
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*
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* @return the amount of data decoded
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*
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* @see Base64_decodeLength
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* @see Base64_encode
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*/
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b64_size_t Base64_decode( b64_data_t *out, b64_size_t out_len,
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const char *in, b64_size_t in_len );
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/**
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* Size of buffer required to decode base64 data
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*
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* @param[in] in base64 string to decode
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* @param[in] in_len length of input buffer
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*
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* @return the size of buffer the decoded string would require
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*
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* @see Base64_decode
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* @see Base64_encodeLength
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*/
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b64_size_t Base64_decodeLength( const char *in, b64_size_t in_len );
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/**
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* Encodes base64 data
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*
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* @param[out] out encode base64 string
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* @param[in] out_len length of output buffer
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* @param[in] in raw data to encode
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* @param[in] in_len length of input buffer
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*
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* @return the amount of data encoded
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*
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* @see Base64_decode
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* @see Base64_encodeLength
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*/
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b64_size_t Base64_encode( char *out, b64_size_t out_len,
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const b64_data_t *in, b64_size_t in_len );
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/**
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* Size of buffer required to encode base64 data
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*
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* @param[in] in raw data to encode
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* @param[in] in_len length of input buffer
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*
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* @return the size of buffer the encoded string would require
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*
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* @see Base64_decodeLength
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* @see Base64_encode
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*/
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b64_size_t Base64_encodeLength( const b64_data_t *in, b64_size_t in_len );
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#endif /* BASE64_H */
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