lib/base64.h

   1 // SPDX-License-Identifier: NONE
   2 /*
   3  * This is part of the libb64 project, and has been placed in the public domain.
   4  * For details, see http://sourceforge.net/projects/libb64
   5  */
   6
   7 #ifndef _BASE64_H_
   8 #define _BASE64_H_
   9
  10 enum base64_encodestep {
  11         step_A, step_B, step_C
  12 };
  13
  14 struct base64_encodestate {
  15         enum base64_encodestep step;
  16         char result;
  17         int stepcount;
  18 };
  19
  20 void base64_init_encodestate(struct base64_encodestate *state_in);
  21
  22 char base64_encode_value(char value_in);
  23
  24 int base64_encode_block(const char *plaintext_in, int length_in, char *code_out,
  25                         struct base64_encodestate *state_in);
  26
  27 int base64_encode_blockend(char *code_out, struct base64_encodestate *state_in);
  28
  29
  30 enum base64_decodestep {
  31         step_a, step_b, step_c, step_d
  32 };
  33
  34 struct base64_decodestate {
  35         enum base64_decodestep step;
  36         char plainchar;
  37 };
  38
  39 void base64_init_decodestate(struct base64_decodestate *state_in);
  40
  41 signed char base64_decode_value(signed char value_in);
  42
  43 int base64_decode_block(const char *code_in, int length_in, char *plaintext_out,
  44                         struct base64_decodestate *state_in);
  45
  46 #endif /* _BASE64_H_ */