62 lines
1.7 KiB
C
62 lines
1.7 KiB
C
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#pragma once
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#ifndef _BASE64_H_
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#define _BASE64_H_
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#define _HAS_EXCEPTIONS (0)
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#define _CRT_SECURE_NO_WARNINGS
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#include <cstdlib>
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/**
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* encode three bytes using base64 (RFC 3548)
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*
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* @param triple three bytes that should be encoded
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* @param result buffer of four characters where the result is stored
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*/
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void _base64_encode_triple(unsigned char triple[3], char result[4]);
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/**
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* encode an array of bytes using Base64 (RFC 3548)
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*
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* @param source the source buffer
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* @param sourcelen the length of the source buffer
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* @param target the target buffer
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* @param targetlen the length of the target buffer
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* @return 1 on success, 0 otherwise
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*/
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int base64_encode(unsigned char *source, size_t sourcelen, char *target, size_t targetlen);
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/**
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* determine the value of a base64 encoding character
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*
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* @param base64char the character of which the value is searched
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* @return the value in case of success (0-63), -1 on failure
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*/
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int _base64_char_value(char base64char);
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/**
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* decode a 4 char base64 encoded byte triple
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*
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* @param quadruple the 4 characters that should be decoded
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* @param result the decoded data
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* @return length of the result (1, 2 or 3), 0 on failure
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*/
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int _base64_decode_triple(char quadruple[4], unsigned char *result);
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/**
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* decode base64 encoded data
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*
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* @param source the encoded data (zero terminated)
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* @param target pointer to the target buffer
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* @param targetlen length of the target buffer
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* @return length of converted data on success, -1 otherwise
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*/
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size_t base64_decode(const char *source, unsigned char *target, size_t targetlen);
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/** get memory consumption */
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size_t base64_needed(const size_t &iSize);
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#endif
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