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/* Capstone Disassembler Engine */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <capstone.h>
struct platform {
cs_arch arch;
cs_mode mode;
unsigned char *code;
size_t size;
char *comment;
};
static csh handle;
static void print_string_hex(char *comment, unsigned char *str, int len)
{
unsigned char *c;
printf("%s", comment);
for (c = str; c < str + len; c++) {
printf("0x%02x ", *c & 0xff);
}
printf("\n");
}
static void print_insn_detail(cs_insn *ins)
{
cs_mips *mips_arch = &(ins->detail->mips_arch);
if (mips_arch->op_count)
printf("\top_count: %u\n", mips_arch->op_count);
int i;
for (i = 0; i < mips_arch->op_count; i++) {
cs_mips_op *op = &(mips_arch->operands[i]);
switch((int)op->type) {
default:
break;
case MIPS_OP_REG:
printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg));
break;
case MIPS_OP_IMM:
printf("\t\toperands[%u].type: IMM = 0x%"PRIx64 "\n", i, op->imm);
break;
case MIPS_OP_MEM:
printf("\t\toperands[%u].type: MEM\n", i);
if (op->mem.base != X86_REG_INVALID)
printf("\t\t\toperands[%u].mem.base: REG = %s\n",
i, cs_reg_name(handle, op->mem.base));
if (op->mem.disp != 0)
printf("\t\t\toperands[%u].mem.disp: 0x%" PRIx64 "\n", i, op->mem.disp);
break;
}
}
printf("\n");
}
static void test()
{
//#define MIPS_CODE "\x8f\xa2\x00\x00"
//#define MIPS_CODE "\x00\x00\xa7\xac\x10\x00\xa2\x8f"
//#define MIPS_CODE "\x21\x30\xe6\x70" // clo $6, $7
//#define MIPS_CODE "\x00\x00\x00\x00" // nop
//#define MIPS_CODE "\xc6\x23\xe9\xe4" // swc1 $f9, 0x23c6($7)
//#define MIPS_CODE "\x21\x38\x00\x01" // move $7, $8
#define MIPS_CODE "\x0C\x10\x00\x97\x00\x00\x00\x00\x24\x02\x00\x0c\x8f\xa2\x00\x00\x34\x21\x34\x56"
//#define MIPS_CODE "\x04\x11\x00\x01" // bal 0x8
#define MIPS_CODE2 "\x56\x34\x21\x34\xc2\x17\x01\x00"
struct platform platforms[] = {
{
.arch = CS_ARCH_MIPS,
.mode = CS_MODE_32 + CS_MODE_BIG_ENDIAN,
.code = (unsigned char *)MIPS_CODE,
.size = sizeof(MIPS_CODE) - 1,
.comment = "MIPS-32 (Big-endian)"
},
{
.arch = CS_ARCH_MIPS,
.mode = CS_MODE_64+ CS_MODE_LITTLE_ENDIAN,
.code = (unsigned char *)MIPS_CODE2,
.size = sizeof(MIPS_CODE2) - 1,
.comment = "MIPS-64-EL (Little-endian)"
},
};
uint64_t address = 0x1000;
cs_insn *insn;
int i;
for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) {
cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle);
if (err) {
printf("Failed on cs_open() with error returned: %u\n", err);
continue;
}
cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON);
size_t count = cs_disasm_ex(handle, platforms[i].code, platforms[i].size, address, 0, &insn);
if (count) {
printf("****************\n");
printf("Platform: %s\n", platforms[i].comment);
print_string_hex("Code:", platforms[i].code, platforms[i].size);
printf("Disasm:\n");
size_t j;
for (j = 0; j < count; j++) {
printf("0x%"PRIx64":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str);
print_insn_detail(&insn[j]);
}
printf("0x%"PRIx64":\n", insn[j-1].address + insn[j-1].size);
// free memory allocated by cs_disasm_ex()
cs_free(insn, count);
} else {
printf("****************\n");
printf("Platform: %s\n", platforms[i].comment);
print_string_hex("Code:", platforms[i].code, platforms[i].size);
printf("ERROR: Failed to disasm given code!\n");
}
printf("\n");
cs_close(&handle);
}
}
int main()
{
test();
return 0;
}
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