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https://github.com/espressif/arduino-esp32
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42 lines
883 B
C
42 lines
883 B
C
/*
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cdecode.h - c header for a base64 decoding algorithm
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This is part of the libb64 project, and has been placed in the public domain.
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For details, see http://sourceforge.net/projects/libb64
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*/
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#ifndef BASE64_CDECODE_H
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#define BASE64_CDECODE_H
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#define base64_decode_expected_len(n) ((n * 3) / 4)
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum {
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step_a,
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step_b,
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step_c,
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step_d
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} base64_decodestep;
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typedef struct {
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base64_decodestep step;
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char plainchar;
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} base64_decodestate;
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void base64_init_decodestate(base64_decodestate *state_in);
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int base64_decode_value(char value_in);
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int base64_decode_block(const char *code_in, const int length_in, char *plaintext_out, base64_decodestate *state_in);
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int base64_decode_chars(const char *code_in, const int length_in, char *plaintext_out);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif /* BASE64_CDECODE_H */
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