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126 lines
2.5 KiB
126 lines
2.5 KiB
/* Capstone Disassembler Engine */ |
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/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2018 */ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <capstone/platform.h> |
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#include <capstone/capstone.h> |
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static csh handle; |
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struct platform { |
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cs_arch arch; |
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cs_mode mode; |
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unsigned char *code; |
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size_t size; |
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const char *comment; |
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}; |
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static void print_string_hex(const char *comment, unsigned char *str, size_t len) |
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{ |
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unsigned char *c; |
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printf("%s", comment); |
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for (c = str; c < str + len; c++) { |
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printf("0x%02x ", *c & 0xff); |
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} |
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printf("\n"); |
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} |
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static void print_insn_detail(csh cs_handle, cs_insn *ins) |
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{ |
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cs_evm *evm; |
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// detail can be NULL on "data" instruction if SKIPDATA option is turned ON |
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if (ins->detail == NULL) |
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return; |
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evm = &(ins->detail->evm); |
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if (evm->pop) |
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printf("\tPop: %u\n", evm->pop); |
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if (evm->push) |
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printf("\tPush: %u\n", evm->push); |
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if (evm->fee) |
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printf("\tGas fee: %u\n", evm->fee); |
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if (ins->detail->groups_count) { |
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int j; |
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printf("\tGroups: "); |
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for(j = 0; j < ins->detail->groups_count; j++) { |
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printf("%s ", cs_group_name(handle, ins->detail->groups[j])); |
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} |
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printf("\n"); |
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} |
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} |
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static void test() |
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{ |
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#define EVM_CODE "\x60\x61\x50" |
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struct platform platforms[] = { |
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{ |
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CS_ARCH_EVM, |
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0, |
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(unsigned char *)EVM_CODE, |
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sizeof(EVM_CODE) - 1, |
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"EVM" |
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}, |
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}; |
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uint64_t address = 0x80001000; |
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cs_insn *insn; |
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int i; |
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size_t count; |
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for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) { |
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cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle); |
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if (err) { |
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printf("Failed on cs_open() with error returned: %u\n", err); |
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abort(); |
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} |
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cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON); |
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count = cs_disasm(handle, platforms[i].code, platforms[i].size, address, 0, &insn); |
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if (count) { |
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size_t j; |
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printf("****************\n"); |
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printf("Platform: %s\n", platforms[i].comment); |
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print_string_hex("Code:", platforms[i].code, platforms[i].size); |
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printf("Disasm:\n"); |
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for (j = 0; j < count; j++) { |
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printf("0x%" PRIx64 ":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str); |
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print_insn_detail(handle, &insn[j]); |
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} |
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printf("0x%" PRIx64 ":\n", insn[j-1].address + insn[j-1].size); |
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// free memory allocated by cs_disasm() |
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cs_free(insn, count); |
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} else { |
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printf("****************\n"); |
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printf("Platform: %s\n", platforms[i].comment); |
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print_string_hex("Code:", platforms[i].code, platforms[i].size); |
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printf("ERROR: Failed to disasm given code!\n"); |
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abort(); |
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} |
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printf("\n"); |
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cs_close(&handle); |
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} |
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} |
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int main() |
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{ |
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test(); |
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return 0; |
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} |
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