1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/*
* Copyright (c) 2006-2014 Erik Ekman <yarrick@kryo.se>,
* 2006-2009 Bjorn Andersson <flex@kryo.se>
*
* Permission to use, copy, modify, and 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_
/* 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 {
char name[8];
int (*encode) (char *, size_t *, const void *, size_t);
int (*decode) (void *, size_t *, const char *, size_t);
int (*places_dots) (void);
int (*eats_dots) (void);
int (*blocksize_raw)(void);
int (*blocksize_encoded)(void);
};
int build_hostname(char *, size_t, const char *, const size_t, const char *, struct encoder *, int);
int unpack_data(char *, size_t, char *, size_t, struct encoder *);
int inline_dotify(char *, size_t);
int inline_undotify(char *, size_t);
#endif /* _ENCODING_H_ */
|
