1 /* Capstone Disassembler Engine */ 2 /* By Nguyen Anh Quynh <aquynh (at) gmail.com>, 2013-2014 */ 3 4 #include <stdio.h> 5 6 #include <platform.h> 7 #include <capstone.h> 8 9 struct platform { 10 cs_arch arch; 11 cs_mode mode; 12 unsigned char *code; 13 size_t size; 14 char *comment; 15 }; 16 17 static csh handle; 18 19 static void print_string_hex(char *comment, unsigned char *str, size_t len) 20 { 21 unsigned char *c; 22 23 printf("%s", comment); 24 for (c = str; c < str + len; c++) { 25 printf("0x%02x ", *c & 0xff); 26 } 27 28 printf("\n"); 29 } 30 31 static void print_insn_detail(cs_insn *ins) 32 { 33 cs_sysz *sysz; 34 int i; 35 36 // detail can be NULL on "data" instruction if SKIPDATA option is turned ON 37 if (ins->detail == NULL) 38 return; 39 40 sysz = &(ins->detail->sysz); 41 if (sysz->op_count) 42 printf("\top_count: %u\n", sysz->op_count); 43 44 for (i = 0; i < sysz->op_count; i++) { 45 cs_sysz_op *op = &(sysz->operands[i]); 46 switch((int)op->type) { 47 default: 48 break; 49 case SYSZ_OP_REG: 50 printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg)); 51 break; 52 case SYSZ_OP_ACREG: 53 printf("\t\toperands[%u].type: ACREG = %u\n", i, op->reg); 54 break; 55 case SYSZ_OP_IMM: 56 printf("\t\toperands[%u].type: IMM = 0x%" PRIx64 "\n", i, op->imm); 57 break; 58 case SYSZ_OP_MEM: 59 printf("\t\toperands[%u].type: MEM\n", i); 60 if (op->mem.base != SYSZ_REG_INVALID) 61 printf("\t\t\toperands[%u].mem.base: REG = %s\n", 62 i, cs_reg_name(handle, op->mem.base)); 63 if (op->mem.index != SYSZ_REG_INVALID) 64 printf("\t\t\toperands[%u].mem.index: REG = %s\n", 65 i, cs_reg_name(handle, op->mem.index)); 66 if (op->mem.length != 0) 67 printf("\t\t\toperands[%u].mem.length: 0x%" PRIx64 "\n", i, op->mem.length); 68 if (op->mem.disp != 0) 69 printf("\t\t\toperands[%u].mem.disp: 0x%" PRIx64 "\n", i, op->mem.disp); 70 71 break; 72 } 73 } 74 75 if (sysz->cc != 0) 76 printf("\tCode condition: %u\n", sysz->cc); 77 78 printf("\n"); 79 } 80 81 static void test() 82 { 83 #define SYSZ_CODE "\xed\x00\x00\x00\x00\x1a\x5a\x0f\x1f\xff\xc2\x09\x80\x00\x00\x00\x07\xf7\xeb\x2a\xff\xff\x7f\x57\xe3\x01\xff\xff\x7f\x57\xeb\x00\xf0\x00\x00\x24\xb2\x4f\x00\x78\xec\x18\x00\x00\xc1\x7f" 84 85 struct platform platforms[] = { 86 { 87 CS_ARCH_SYSZ, 88 CS_MODE_BIG_ENDIAN, 89 (unsigned char*)SYSZ_CODE, 90 sizeof(SYSZ_CODE) - 1, 91 "SystemZ", 92 }, 93 }; 94 95 uint64_t address = 0x1000; 96 cs_insn *insn; 97 int i; 98 size_t count; 99 100 for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) { 101 cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle); 102 if (err) { 103 printf("Failed on cs_open() with error returned: %u\n", err); 104 continue; 105 } 106 107 cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON); 108 109 count = cs_disasm(handle, platforms[i].code, platforms[i].size, address, 0, &insn); 110 if (count) { 111 size_t j; 112 113 printf("****************\n"); 114 printf("Platform: %s\n", platforms[i].comment); 115 print_string_hex("Code:", platforms[i].code, platforms[i].size); 116 printf("Disasm:\n"); 117 118 for (j = 0; j < count; j++) { 119 printf("0x%" PRIx64 ":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str); 120 print_insn_detail(&insn[j]); 121 } 122 printf("0x%" PRIx64 ":\n", insn[j-1].address + insn[j-1].size); 123 124 // free memory allocated by cs_disasm() 125 cs_free(insn, count); 126 } else { 127 printf("****************\n"); 128 printf("Platform: %s\n", platforms[i].comment); 129 print_string_hex("Code:", platforms[i].code, platforms[i].size); 130 printf("ERROR: Failed to disasm given code!\n"); 131 } 132 133 printf("\n"); 134 135 cs_close(&handle); 136 } 137 } 138 139 int main() 140 { 141 test(); 142 143 return 0; 144 } 145
