You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
1.7 KiB
86 lines
1.7 KiB
/* Capstone Disassembler Engine */ |
|
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */ |
|
|
|
#include <stdlib.h> |
|
#include <string.h> |
|
|
|
#include "utils.h" |
|
|
|
// return the position of a string in a list of strings |
|
// or -1 if given string is not in the list |
|
int str_in_list(char **list, char *s) |
|
{ |
|
char **l; |
|
|
|
int c = 0; |
|
for(l = list; *l; c++, l++) { |
|
if (!strcasecmp(*l, s)) |
|
return c; |
|
} |
|
|
|
return -1; |
|
} |
|
|
|
// create a cache for fast id lookup |
|
static unsigned short *make_id2insn(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(sizeof(*cache), max_id + 1); |
|
|
|
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(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(name_map* map, int max, const char *name) |
|
{ |
|
int i; |
|
|
|
for (i = 0; i < max; i++) { |
|
if (!strcasecmp(map[i].name, name)) { |
|
return map[i].id; |
|
} |
|
} |
|
|
|
// nothing match |
|
return -1; |
|
} |
|
|
|
// count number of positive members in a list. |
|
// NOTE: list must be guaranteed to end in 0 |
|
unsigned int count_positive(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); |
|
}
|
|
|