File syn_base64.h¶

File List > src > syntropic > util > syn_base64.h
#ifndef SYN_BASE64_H
#define SYN_BASE64_H

#if __has_include("syn_config.h")
#include "syn_config.h"
#endif

#if !defined(SYN_USE_BASE64) || SYN_USE_BASE64

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>

#ifdef __cplusplus
extern "C" {
#endif

static inline size_t syn_base64_calc_encoded_size(size_t raw_len)
{
    return (((raw_len + 2U) / 3U) * 4U) + 1U;
}

static inline size_t syn_base64_calc_max_decoded_size(size_t b64_len)
{
    return ((b64_len + 3U) / 4U) * 3U;
}

bool syn_base64_encode(const uint8_t *src, size_t src_len, char *dst, size_t dst_size,
                       size_t *out_len);

bool syn_base64_decode(const char *src, size_t src_len, uint8_t *dst, size_t dst_size,
                       size_t *out_len);

bool syn_base64url_encode(const uint8_t *src, size_t src_len, char *dst, size_t dst_size,
                          bool with_padding, size_t *out_len);

bool syn_base64url_decode(const char *src, size_t src_len, uint8_t *dst, size_t dst_size,
                          size_t *out_len);

#ifdef __cplusplus
}
#endif

#endif /* SYN_USE_BASE64 */

#endif /* SYN_BASE64_H */