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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;
cs_opt_type opt_type;
cs_opt_value opt_value;
};
static void print_string_hex(unsigned char *str, int len)
{
unsigned char *c;
printf("Code: ");
for (c = str; c < str + len; c++) {
printf("0x%02x ", *c & 0xff);
}
printf("\n");
}
static void test()
{
#define X86_CODE16 "\x8d\x4c\x32\x08\x01\xd8\x81\xc6\x34\x12\x00\x00"
#define X86_CODE32 "\x8d\x4c\x32\x08\x01\xd8\x81\xc6\x34\x12\x00\x00"
#define X86_CODE64 "\x55\x48\x8b\x05\xb8\x13\x00\x00"
//#define ARM_CODE "\x04\xe0\x2d\xe5"
#define ARM_CODE "\xED\xFF\xFF\xEB\x04\xe0\x2d\xe5\x00\x00\x00\x00\xe0\x83\x22\xe5\xf1\x02\x03\x0e\x00\x00\xa0\xe3\x02\x30\xc1\xe7\x00\x00\x53\xe3"
#define ARM_CODE2 "\x10\xf1\x10\xe7\x11\xf2\x31\xe7\xdc\xa1\x2e\xf3\xe8\x4e\x62\xf3"
#define THUMB_CODE "\x70\x47\xeb\x46\x83\xb0\xc9\x68"
#define THUMB_CODE2 "\x4f\xf0\x00\x01\xbd\xe8\x00\x88\xd1\xe8\x00\xf0"
#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_CODE2 "\x56\x34\x21\x34\xc2\x17\x01\x00"
//#define ARM64_CODE "\x00\x40\x21\x4b" // sub w0, w0, w1, uxtw
//#define ARM64_CODE "\x21\x7c\x02\x9b" // mul x1, x1, x2
//#define ARM64_CODE "\x20\x74\x0b\xd5" // dc zva, x0
//#define ARM64_CODE "\xe1\x0b\x40\xb9" // ldr w1, [sp, #0x8]
#define ARM64_CODE "\x21\x7c\x02\x9b\x21\x7c\x00\x53\x00\x40\x21\x4b\xe1\x0b\x40\xb9"
struct platform platforms[] = {
{
.arch = CS_ARCH_X86,
.mode = CS_MODE_16,
.code = (unsigned char*)X86_CODE16,
.size = sizeof(X86_CODE16) - 1,
.comment = "X86 16bit (Intel syntax)"
},
{
.arch = CS_ARCH_X86,
.mode = CS_MODE_32,
.code = (unsigned char*)X86_CODE32,
.size = sizeof(X86_CODE32) - 1,
.comment = "X86 32bit (ATT syntax)",
.opt_type = CS_OPT_SYNTAX,
.opt_value = CS_OPT_V_ATT,
},
{
.arch = CS_ARCH_X86,
.mode = CS_MODE_32,
.code = (unsigned char*)X86_CODE32,
.size = sizeof(X86_CODE32) - 1,
.comment = "X86 32 (Intel syntax)"
},
{
.arch = CS_ARCH_X86,
.mode = CS_MODE_64,
.code = (unsigned char*)X86_CODE64,
.size = sizeof(X86_CODE64) - 1,
.comment = "X86 64 (Intel syntax)"
},
{
.arch = CS_ARCH_ARM,
.mode = CS_MODE_ARM,
.code = (unsigned char*)ARM_CODE,
.size = sizeof(ARM_CODE) - 1,
.comment = "ARM"
},
{
.arch = CS_ARCH_ARM,
.mode = CS_MODE_THUMB,
.code = (unsigned char*)THUMB_CODE2,
.size = sizeof(THUMB_CODE2) - 1,
.comment = "THUMB-2"
},
{
.arch = CS_ARCH_ARM,
.mode = CS_MODE_ARM,
.code = (unsigned char*)ARM_CODE2,
.size = sizeof(ARM_CODE2) - 1,
.comment = "ARM: Cortex-A15 + NEON"
},
{
.arch = CS_ARCH_ARM,
.mode = CS_MODE_THUMB,
.code = (unsigned char*)THUMB_CODE,
.size = sizeof(THUMB_CODE) - 1,
.comment = "THUMB"
},
{
.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)"
},
{
.arch = CS_ARCH_ARM64,
.mode = CS_MODE_ARM,
.code = (unsigned char*)ARM64_CODE,
.size = sizeof(ARM64_CODE) - 1,
.comment = "ARM-64"
},
};
csh handle;
uint64_t address = 0x1000;
//cs_insn insn[16];
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);
return;
}
if (platforms[i].opt_type)
cs_option(handle, platforms[i].opt_type, platforms[i].opt_value);
//size_t count = cs_disasm(handle, platforms[i].code, platforms[i].size, address, 0, insn);
size_t count = cs_disasm_dyn(handle, platforms[i].code, platforms[i].size, address, 0, &insn);
if (count) {
printf("****************\n");
printf("Platform: %s\n", platforms[i].comment);
print_string_hex(platforms[i].code, platforms[i].size);
printf("Disasm:\n");
size_t j;
for (j = 0; j < count; j++) {
printf("0x%"PRIx64":\t%s\t\t%s\n",
insn[j].address, insn[j].mnemonic, insn[j].op_str);
}
// print out the next offset, after the last insn
printf("0x%"PRIx64":\n", insn[j-1].address + insn[j-1].size);
// free memory allocated by cs_disasm_dyn()
cs_free(insn);
} else {
printf("****************\n");
printf("Platform: %s\n", platforms[i].comment);
print_string_hex(platforms[i].code, platforms[i].size);
printf("ERROR: Failed to disasm given code!\n");
}
printf("\n");
cs_close(handle);
}
}
int main()
{
test();
#if 0
#define offsetof(type, member) (int)(&((type *)0)->member)
cs_insn insn;
printf("size: %lu\n", sizeof(insn));
printf("@id: %u\n", offsetof(cs_insn, id));
printf("@address: %u\n", offsetof(cs_insn, address));
printf("@size: %u\n", offsetof(cs_insn, size));
printf("@mnemonic: %u\n", offsetof(cs_insn, mnemonic));
printf("@op_str: %u\n", offsetof(cs_insn, op_str));
printf("@regs_read: %u\n", offsetof(cs_insn, regs_read));
printf("@regs_read_count: %u\n", offsetof(cs_insn, regs_read_count));
printf("@regs_write: %u\n", offsetof(cs_insn, regs_write));
printf("@regs_write_count: %u\n", offsetof(cs_insn, regs_write_count));
printf("@groups: %u\n", offsetof(cs_insn, groups));
printf("@groups_count: %u\n", offsetof(cs_insn, groups_count));
printf("@arch: %u\n", offsetof(cs_insn, x86));
#endif
return 0;
}