blob: fe8f08d750138891b5756cebe2fcc9d549f657f4 (
plain)
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* Copyright 1996-2002 - Karl R. Hakimian and David Fries
*
* This file is part of datalink.
*
* Datalink 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 2 of the License, or
* (at your option) any later version.
*
* Datalink 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 datalink (see COPYING); if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "datalink.h"
int dl_pack_ascii(unsigned char *to, unsigned char *from)
{
int c;
int p = 0;
int o = 0;
while (*from)
{
if (o == 0)
{
to[p] = dl_pack_char(*from);
o = 6;
from++;
continue;
}
c = dl_pack_char(*from);
to[p] |= c << o;
to[++p] = c >> (8 - o);
o = (o + 6) % 8;
from++;
}
if (o)
{
to[p] |= 0x3f << o;
to[++p] = 0x3f >> (8 - o);
o = (o + 6) % 8;
if (o)
p++;
} else
to[p++] = 0x3f;
return (p);
}
|