z85.h

/*
    This file is part of Pretty Curved Privacy (pcp1).

    Copyright (C) 2013-2015 T.v.Dein.

    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 of the License, 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, see <http://www.gnu.org/licenses/>.

    You can contact me by mail: <tom AT vondein DOT org>.
*/


/*  from https://github.com/tlinden/curve-keygen/ */
#ifndef _HAVE_PCP_Z85_H

#include <ctype.h>
#include "defines.h"
#include "zmq_z85.h"
#include "mem.h"
#include "structs.h"
#include "context.h"
#include "buffer.h"

byte *pcp_padfour(byte *src, size_t srclen, size_t *dstlen);


size_t pcp_unpadfour(byte *src, size_t srclen);

byte *pcp_z85_decode(PCPCTX *ptx, char *z85block, size_t *dstlen);


char *pcp_z85_encode(byte *raw, size_t srclen, size_t *dstlen, int doblock);

char *pcp_readz85file(PCPCTX *ptx, FILE *infile);

char *pcp_readz85string(PCPCTX *ptx, byte *input, size_t bufsize);

uint8_t is_utf8(const byte * bytes);

size_t _buffer_is_binary(byte *buf, size_t len);


uint8_t _parse_zchar(Buffer *z, uint8_t c, uint8_t is_comment);


long int z85_header_startswith(Buffer *buf, char *what);
int z85_isheader(Buffer *buf);
int z85_isend(Buffer *buf);
int z85_isbegin(Buffer *buf);
int z85_iscomment(Buffer *buf);
int z85_isempty(Buffer *line);
int z85_isencoded(Buffer *line);

#endif /*  _HAVE_PCP_Z85_H */