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
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/* Capstone Disassembly Engine */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2015 */
#if defined(CAPSTONE_HAS_OSXKERNEL)
#include <Availability.h>
#include <libkern/libkern.h>
#else
#include <stdlib.h>
#endif
#include <string.h>
#include "utils.h"
// create a cache for fast id lookup
static unsigned short *make_id2insn(const insn_map *insns, unsigned int size)
{
// NOTE: assume that the max id is always put at the end of insns array
unsigned short max_id = insns[size - 1].id;
unsigned short i;
unsigned short *cache = (unsigned short *)cs_mem_calloc(max_id + 1, sizeof(*cache));
for (i = 1; i < size; i++)
cache[insns[i].id] = i;
return cache;
}
// look for @id in @insns, given its size in @max. first time call will update @cache.
// return 0 if not found
unsigned short insn_find(const insn_map *insns, unsigned int max, unsigned int id, unsigned short **cache)
{
if (id > insns[max - 1].id)
return 0;
if (*cache == NULL)
*cache = make_id2insn(insns, max);
return (*cache)[id];
}
int name2id(const name_map* map, int max, const char *name)
{
int i;
for (i = 0; i < max; i++) {
if (!strcmp(map[i].name, name)) {
return map[i].id;
}
}
// nothing match
return -1;
}
const char *id2name(const name_map* map, int max, const unsigned int id)
{
int i;
for (i = 0; i < max; i++) {
if (map[i].id == id) {
return map[i].name;
}
}
// nothing match
return NULL;
}
// count number of positive members in a list.
// NOTE: list must be guaranteed to end in 0
unsigned int count_positive(const uint16_t *list)
{
unsigned int c;
for (c = 0; list[c] > 0; c++);
return c;
}
// count number of positive members in a list.
// NOTE: list must be guaranteed to end in 0
unsigned int count_positive8(const unsigned char *list)
{
unsigned int c;
for (c = 0; list[c] > 0; c++);
return c;
}
char *cs_strdup(const char *str)
{
size_t len = strlen(str)+ 1;
void *new = cs_mem_malloc(len);
if (new == NULL)
return NULL;
return (char *)memmove(new, str, len);
}
// we need this since Windows doesn't have snprintf()
int cs_snprintf(char *buffer, size_t size, const char *fmt, ...)
{
int ret;
va_list ap;
va_start(ap, fmt);
ret = cs_vsnprintf(buffer, size, fmt, ap);
va_end(ap);
return ret;
}
bool arr_exist8(unsigned char *arr, unsigned char max, unsigned int id)
{
int i;
for (i = 0; i < max; i++) {
if (arr[i] == id)
return true;
}
return false;
}
bool arr_exist(uint16_t *arr, unsigned char max, unsigned int id)
{
int i;
for (i = 0; i < max; i++) {
if (arr[i] == id)
return true;
}
return false;
}
|
