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
118
119
120
121
122
123
124
125
126
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
static union {
unsigned long long integer;
char string[8];
} DataStore;
typedef enum {
STORE_GET,
STORE_SET,
FLAG
} action_t;
typedef enum {
INTEGER,
STRING
} field_t;
typedef struct {
action_t act;
field_t field;
} menu_t;
menu_t menu() {
menu_t res = { 0 };
char buf[32] = { 0 };
printf("\n(T)ry to turn it off\n(R)un\n(C)ry\n\n>> ");
fgets(buf, sizeof(buf), stdin);
buf[strcspn(buf, "\n")] = 0;
switch (buf[0]) {
case 'T':
res.act = STORE_SET;
break;
case 'R':
res.act = STORE_GET;
break;
case 'C':
res.act = FLAG;
return res;
default:
puts("\nWhat's this nonsense?!");
exit(-1);
}
printf("\nThis does not seem to work.. (L)ie down or (S)cream\n\n>> ");
fgets(buf, sizeof(buf), stdin);
buf[strcspn(buf, "\n")] = 0;
switch (buf[0]) {
case 'L':
res.field = INTEGER;
break;
case 'S':
res.field = STRING;
break;
default:
printf("\nYou are doomed!\n");
exit(-1);
}
return res;
}
void set_field(field_t f) {
char buf[32] = {0};
printf("\nMaybe try a ritual?\n\n>> ");
fgets(buf, sizeof(buf), stdin);
switch (f) {
case INTEGER:
sscanf(buf, "%llu", &DataStore.integer);
if (DataStore.integer == 13371337) {
puts("\nWhat's this nonsense?!");
exit(-1);
}
break;
case STRING:
memcpy(DataStore.string, buf, sizeof(DataStore.string));
break;
}
}
void get_field(field_t f) {
printf("\nAnything else to try?\n\n>> ");
switch (f) {
case INTEGER:
printf("%llu\n", DataStore.integer);
break;
case STRING:
printf("%.8s\n", DataStore.string);
break;
}
}
void get_flag() {
if (DataStore.integer == 13371337) {
system("cat flag.txt");
exit(0);
} else {
puts("\nSorry, this will not work!");
}
}
int main() {
setvbuf(stdout, NULL, _IONBF, 0);
bzero(&DataStore, sizeof(DataStore));
printf("\nSomething strange is coming out of the TV..\n");
while (1) {
menu_t result = menu();
switch (result.act) {
case STORE_SET:
set_field(result.field);
break
case STORE_GET:
get_field(result.field);
break;
case FLAG:
get_flag();
break;
}
}
}
|
