iodine/src/encoding.h
Ralf Ramsauer 4591cafd27 encoding: simplify {places,eats}_dots
Why not using constant bools?

Much simpler than complex function calls, that eventually return
constant values.

Signed-off-by: Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
2017-03-11 21:30:50 -08:00

62 lines
2.2 KiB
C

/*
* Copyright (c) 2006-2014 Erik Ekman
* 2006-2009 Bjorn Andersson
* Copyright (c) 2017 Ralf Ramsauer
*
* Authors:
* Bjorn Andersson <flex@kryo.se>
* Erok Ekman <yarrick@kryo.se>,
* Ralf Ramsauer <ralf@ramses-pyramidenbau.de>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _ENCODING_H_
#define _ENCODING_H_
#include <stdbool.h>
/* All-0, all-1, 01010101, 10101010: each 4 times to make sure the pattern
spreads across multiple encoded chars -> 16 bytes total.
Followed by 32 bytes from my /dev/random; should be enough.
*/
#define DOWNCODECCHECK1 "\000\000\000\000\377\377\377\377\125\125\125\125\252\252\252\252\201\143\310\322\307\174\262\027\137\117\316\311\111\055\122\041\141\251\161\040\045\263\006\163\346\330\104\060\171\120\127\277"
#define DOWNCODECCHECK1_LEN 48
struct encoder {
const char name[8];
int (*encode)(char *dst, size_t *dstlen, const void *src, size_t srclen);
int (*decode)(void *dst, size_t *dstlen, const char *src, size_t srclen);
const bool places_dots;
const bool eats_dots;
const int blocksize_raw;
const int blocksize_encoded;
};
int build_hostname(char *, size_t, const char *, const size_t, const char *, const struct encoder *, int);
int unpack_data(char *, size_t, char *, size_t, const struct encoder *);
int inline_dotify(char *, size_t);
int inline_undotify(char *, size_t);
extern const struct encoder base32_ops;
extern const struct encoder base64_ops;
extern const struct encoder base64u_ops;
extern const struct encoder base128_ops;
int b32_5to8(int);
int b32_8to5(int);
#endif