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/* Capstone Disassembler Engine */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2018-2019 */
#include <stdio.h>
#include <stdlib.h>
#include <capstone/platform.h>
#include <capstone/capstone.h>
static csh handle;
struct platform {
cs_arch arch;
cs_mode mode;
unsigned char *code;
size_t size;
const char *comment;
};
static void print_string_hex(const char *comment, unsigned char *str, size_t 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(csh cs_handle, cs_insn *ins)
{
cs_evm *evm;
// detail can be NULL on "data" instruction if SKIPDATA option is turned ON
if (ins->detail == NULL)
return;
evm = &(ins->detail->evm);
if (evm->pop)
printf("\tPop: %u\n", evm->pop);
if (evm->push)
printf("\tPush: %u\n", evm->push);
if (evm->fee)
printf("\tGas fee: %u\n", evm->fee);
if (ins->detail->groups_count) {
int j;
printf("\tGroups: ");
for(j = 0; j < ins->detail->groups_count; j++) {
printf("%s ", cs_group_name(handle, ins->detail->groups[j]));
}
printf("\n");
}
}
static void test()
{
#define EVM_CODE "\x60\x61\x50"
struct platform platforms[] = {
{
CS_ARCH_EVM,
0,
(unsigned char *)EVM_CODE,
sizeof(EVM_CODE) - 1,
"EVM"
},
};
uint64_t address = 0x80001000;
cs_insn *insn;
int i;
size_t count;
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);
abort();
}
cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON);
count = cs_disasm(handle, platforms[i].code, platforms[i].size, address, 0, &insn);
if (count) {
size_t j;
printf("****************\n");
printf("Platform: %s\n", platforms[i].comment);
print_string_hex("Code:", platforms[i].code, platforms[i].size);
printf("Disasm:\n");
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(handle, &insn[j]);
}
printf("0x%" PRIx64 ":\n", insn[j-1].address + insn[j-1].size);
// free memory allocated by cs_disasm()
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");
abort();
}
printf("\n");
cs_close(&handle);
}
}
int main()
{
test();
return 0;
}
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