text: /**
   * `b64.h' - b64
   *
   * copyright (c) 2014 joseph werle
   */
  
  #ifndef B64_H
  #define B64_H 1
  
  #include <stdlib.h>
  
  #include "alloc.h"
  
  /**
   *  Memory allocation functions to use. You can define b64_malloc and
   * b64_realloc to custom functions if you want.
   */
  
  #ifndef b64_malloc
  #  define b64_malloc(size) WSS_malloc(size)
  #endif
  #ifndef b64_realloc
  #  define b64_realloc(ptr, size) WSS_realloc((void **)&ptr, size, size)
  #endif
  
  /**
   * Base64 index table.
   */
  
  static const char b64_table[] = {
    'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H',
    'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P',
    'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X',
    'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f',
    'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n',
    'o', 'p', 'q', 'r', 's', 't', 'u', 'v',
    'w', 'x', 'y', 'z', '0', '1', '2', '3',
    '4', '5', '6', '7', '8', '9', '+', '/'
  };
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /**
   * Encode `unsigned char *' source with `size_t' size.
   * Returns a `char *' base64 encoded string.
   */
  
  char *
  b64_encode (const unsigned char *, size_t);
  
  /**
   * Decode `char *' source with `size_t' size.
   * Returns a `unsigned char *' base64 decoded string + size of decoded string.
   */
  unsigned char *b64_decode_ex (const char *src, size_t len, size_t *decsize);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif
  