/
tools.c
117 lines (104 loc) · 2.18 KB
/
tools.c
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
/*
** 102chiffrement2.c for 102chiffrement2.c in /home/despla_t/rendu/102chiffrement
**
** Made by Thibault Desplat
** Login <despla_t@epitech.net>
**
** Started on Wed Nov 27 16:36:46 2013 Thibault Desplat
** Last update Thu Nov 28 13:13:46 2013 nathan giallombardo
*/
#include "my.h"
#include "inc.h"
int my_get_digit(char c)
{
if (c == ' ')
return (0);
else
return ((int)c);
}
int my_get_keys(char **str, int *keys, int flag)
{
if (!flag)
{
keys[0] = my_getnbr(str[2]);
keys[1] = my_getnbr(str[3]);
keys[2] = my_getnbr(str[4]);
keys[3] = my_getnbr(str[5]);
}
else
{
keys[0] = my_getnbr(str[5]);
keys[1] = -my_getnbr(str[4]);
keys[2] = -my_getnbr(str[3]);
keys[3] = my_getnbr(str[2]);
}
}
int my_get_message(char *str, int flags)
{
int i;
if (flags)
my_epur_str(str);
i = 0;
while (str[i])
{
if (str[i] != ' ')
str[i] = str[i] - 96;
i++;
}
}
int my_get_chiffrementI(int *keys, char *msg, char *base)
{
int i;
int e;
i = 0;
e = 1;
while (msg[i + 1] && e)
{
my_putnbr_base(keys[0] * my_get_digit(msg[i]) +
keys[2] * my_get_digit(msg[i + 1]), base);
my_putchar(' ');
my_putnbr_base(keys[1] * my_get_digit(msg[i]) +
keys[3] * my_get_digit(msg[i + 1]), base);
my_putchar(' ');
if (!msg[i + 1])
e = 0;
i = i + 2;
}
my_putnbr_base(keys[0] * my_get_digit(msg[i]) +
keys[2] * my_get_digit(msg[i + 1]), base);
my_putchar(' ');
my_putnbr_base(keys[1] * my_get_digit(msg[i]) +
keys[3] * my_get_digit(msg[i + 1]), base);
my_putchar('\n');
}
int my_get_chiffrementP(int *keys, char *msg, char *base)
{
int i;
i = 0;
while (msg[i])
{
my_putnbr_base(keys[0] * my_get_digit(msg[i]) +
keys[2] * my_get_digit(msg[i + 1]), base);
my_putchar(' ');
my_putnbr_base(keys[1] * my_get_digit(msg[i]) +
keys[3] * my_get_digit(msg[i + 1]), base);
my_putchar(' ');
i = i + 2;
}
my_putchar('\n');
}
int my_epur_str(char *str)
{
int i;
int j;
i = 0;
j = 0;
while (str[i])
{
while (str[j] == ' ')
j = j + 1;
str[i] = str[j];
i = i + 1;
j = j + 1;
}
}