/* -*- buffer-read-only: t -*- vi: set ro: */
/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
/* base64.h -- Encode binary data using printable characters.
   Copyright (C) 2004-2006, 2009-2011 Free Software Foundation, Inc.
   Written by Simon Josefsson.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifndef BASE64_H
#define BASE64_H

/* Get size_t. */
#include <cstddef>

/* Get bool. */

/* This uses that the expression (n+(k-1))/k means the smallest
   integer >= n/k, i.e., the ceiling of n/k.  */
#define BASE64_LENGTH(inlen) ((((inlen) + 2) / 3) * 4)

struct base64_decode_context {
  unsigned int i;
  char buf[4];
};

extern bool isbase64(char ch);

extern void base64_encode(const char *in, size_t inlen, char *out, size_t outlen);

extern size_t base64_encode_alloc(const char *in, size_t inlen, char **out);

extern void base64_decode_ctx_init(struct base64_decode_context *ctx);

extern bool base64_decode_ctx(
    struct base64_decode_context *ctx, const char *in, size_t inlen, char *out, size_t *outlen);

extern bool base64_decode_alloc_ctx(
    struct base64_decode_context *ctx, const char *in, size_t inlen, char **out, size_t *outlen);

#define base64_decode(in, inlen, out, outlen) base64_decode_ctx(NULL, in, inlen, out, outlen)

#define base64_decode_alloc(in, inlen, out, outlen) base64_decode_alloc_ctx(NULL, in, inlen, out, outlen)

#endif /* BASE64_H */
