cencode.h

/*
cencode.h - c header for a base64 encoding algorithm

This is part of the libb64 project, and has been placed in the public domain.
For details, see http://sourceforge.net/projects/libb64
*/

#ifndef BASE64_CENCODE_H
#define BASE64_CENCODE_H

#define base64_encode_expected_len(n) ((((4 * n) / 3) + 3) & ~3)

#ifdef __cplusplus
extern "C" {
#endif

typedef enum {
    step_A, step_B, step_C
} base64_encodestep;

typedef struct {
    base64_encodestep step;
    char result;
    int stepcount;
} base64_encodestate;

void base64_init_encodestate(base64_encodestate* state_in);

char base64_encode_value(char value_in);

int base64_encode_block(const char* plaintext_in, int length_in, char* code_out, base64_encodestate* state_in);

int base64_encode_blockend(char* code_out, base64_encodestate* state_in);

int base64_encode_chars(const char* plaintext_in, int length_in, char* code_out);

#ifdef __cplusplus
} // extern "C"
#endif

#endif /* BASE64_CENCODE_H */