blob: 34d0465b7c2f0a585c917967bb83a6f3422240a9 (
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
60
61
|
/******************************************************************************
*
* cipherfil - SWFilter descendant to decipher a module
*
* Copyright 2009 CrossWire Bible Society (http://www.crosswire.org)
* CrossWire Bible Society
* P. O. Box 2528
* Tempe, AZ 85280-2528
*
* 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 version 2.
*
* 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.
*
*/
#include <stdlib.h>
#include <cipherfil.h>
#include <swcipher.h>
#include <swbuf.h>
SWORD_NAMESPACE_START
CipherFilter::CipherFilter(const char *key) {
cipher = new SWCipher((unsigned char *)key);
}
CipherFilter::~CipherFilter() {
delete cipher;
}
SWCipher *CipherFilter::getCipher() {
return cipher;
}
char CipherFilter::processText(SWBuf &text, const SWKey *key, const SWModule *module) {
if (text.length() > 2) { //check if it's large enough to substract 2 in the next step.
unsigned long len = text.length();
if (!key) { // hack, using key to determine encipher, or decipher
cipher->cipherBuf(&len, text.getRawData()); //set buffer to enciphered text
memcpy(text.getRawData(), cipher->Buf(), len);
// text = cipher->Buf(); //get the deciphered buffer
}
else if ((unsigned long)key == 1) {
cipher->Buf(text.getRawData(), len);
memcpy(text.getRawData(), cipher->cipherBuf(&len), len);
// text = cipher->cipherBuf(&len);
}
}
return 0;
}
SWORD_NAMESPACE_END
|