| // Capstone Java binding |
| // By Nguyen Anh Quynh & Dang Hoang Vu, 2013 |
| |
| import com.sun.jna.Native; |
| import com.sun.jna.Memory; |
| import com.sun.jna.Pointer; |
| |
| import capstone.Capstone; |
| import capstone.X86; |
| |
| import static capstone.X86_const.*; |
| |
| public class TestX86 { |
| |
| static byte[] hexString2Byte(String s) { |
| // from http://stackoverflow.com/questions/140131/convert-a-string-representation-of-a-hex-dump-to-a-byte-array-using-java |
| int len = s.length(); |
| byte[] data = new byte[len / 2]; |
| for (int i = 0; i < len; i += 2) { |
| data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) |
| + Character.digit(s.charAt(i+1), 16)); |
| } |
| return data; |
| } |
| |
| static final String X86_CODE64 = "55488b05b8130000"; |
| static final String X86_CODE16 = "8d4c320801d881c6341200000523010000368b849123010000418d8439896700008d8789670000b4c6"; |
| static final String X86_CODE32 = "8d4c320801d881c6341200000523010000368b849123010000418d8439896700008d8789670000b4c6"; |
| |
| public static Capstone cs; |
| |
| private static String hex(int i) { |
| return Integer.toString(i, 16); |
| } |
| |
| private static String hex(long i) { |
| return Long.toString(i, 16); |
| } |
| |
| private static String array2hex(byte[] arr) { |
| String ret = ""; |
| for (int i=0 ;i<arr.length; i++) |
| ret += String.format("0x%02x ", arr[i]); |
| return ret; |
| } |
| |
| public static void print_ins_detail(Capstone.cs_insn ins) { |
| System.out.printf("0x%x:\t%s\t%s\n", ins.address, ins.mnemonic, ins.operands); |
| |
| X86.OpInfo op_info = (X86.OpInfo) ins.op_info; |
| |
| System.out.printf("\tPrefix: %s\n", array2hex(op_info.prefix)); |
| |
| if (op_info.segment != X86_REG_INVALID) |
| System.out.println("\tSegment override: " + cs.reg_name(op_info.segment)); |
| |
| |
| System.out.printf("\tOpcode: %s\n", array2hex(op_info.opcode)); |
| |
| // print operand's size, address size, displacement size & immediate size |
| System.out.printf("\top_size: %d, addr_size: %d, disp_size: %d, imm_size: %d\n" |
| , op_info.op_size, op_info.addr_size, op_info.disp_size, op_info.imm_size); |
| |
| // print modRM byte |
| System.out.printf("\tmodrm: 0x%x\n", op_info.modrm); |
| |
| // print displacement value |
| System.out.printf("\tdisp: 0x%x\n", op_info.disp); |
| |
| // SIB is not available in 16-bit mode |
| if ( (cs.mode & Capstone.CS_MODE_16) == 0) { |
| // print SIB byte |
| System.out.printf("\tsib: 0x%x\n", op_info.sib); |
| if (op_info.sib != 0) |
| System.out.printf("\tsib_index: %s, sib_scale: %d, sib_base: %s\n", |
| cs.reg_name(op_info.sib_index), op_info.sib_scale, cs.reg_name(op_info.sib_base)); |
| } |
| |
| int count = ins.op_count(X86_OP_IMM); |
| if (count > 0) { |
| System.out.printf("\timm_count: %d\n", count); |
| for (int i=0; i<count; i++) { |
| int index = ins.op_index(X86_OP_IMM, i + 1); |
| System.out.printf("\t\timms[%d]: 0x%x\n", i+1, (op_info.op[index].value.imm)); |
| } |
| } |
| |
| if (op_info.op != null) { |
| System.out.printf("\top_count: %d\n", op_info.op.length); |
| for (int c=0; c<op_info.op.length; c++) { |
| X86.Operand i = (X86.Operand) op_info.op[c]; |
| String imm = hex(i.value.imm); |
| if (i.type == X86_OP_REG) |
| System.out.printf("\t\toperands[%d].type: REG = %s\n", c, cs.reg_name(i.value.reg)); |
| if (i.type == X86_OP_IMM) |
| System.out.printf("\t\toperands[%d].type: IMM = 0x%x\n", c, i.value.imm); |
| if (i.type == X86_OP_FP) |
| System.out.printf("\t\toperands[%d].type: FP = %f\n", c, i.value.fp); |
| if (i.type == X86_OP_MEM) { |
| System.out.printf("\t\toperands[%d].type: MEM\n",c); |
| String base = cs.reg_name(i.value.mem.base); |
| String index = cs.reg_name(i.value.mem.index); |
| if (base != null) |
| System.out.printf("\t\t\toperands[%d].mem.base: REG = %s\n", c, base); |
| if (index != null) |
| System.out.printf("\t\t\toperands[%d].mem.index: REG = %s\n", c, index); |
| if (i.value.mem.scale != 1) |
| System.out.printf("\t\t\toperands[%d].mem.scale: %d\n", c, i.value.mem.scale); |
| if (i.value.mem.disp != 0) |
| System.out.printf("\t\t\toperands[%d].mem.disp: 0x%x\n", c, i.value.mem.disp); |
| } |
| } |
| } |
| } |
| |
| public static void main(String argv[]) { |
| |
| final Test.platform[] all_tests = { |
| new Test.platform(Capstone.CS_ARCH_X86, Capstone.CS_MODE_16, hexString2Byte(X86_CODE16), "X86 16bit (Intel syntax)"), |
| new Test.platform(Capstone.CS_ARCH_X86, Capstone.CS_MODE_32 /*+ Capstone.CS_MODE_SYNTAX_ATT */, hexString2Byte(X86_CODE32), "X86 32 (AT&T syntax)"), |
| new Test.platform(Capstone.CS_ARCH_X86, Capstone.CS_MODE_32, hexString2Byte(X86_CODE32), "X86 32 (Intel syntax)"), |
| new Test.platform(Capstone.CS_ARCH_X86, Capstone.CS_MODE_64, hexString2Byte(X86_CODE64), "X86 64 (Intel syntax)"), |
| }; |
| |
| for (int i=0; i<all_tests.length; i++) { |
| Test.platform test = all_tests[i]; |
| System.out.println(new String(new char[16]).replace("\0", "*")); |
| System.out.println("Platform: " + test.comment); |
| System.out.println("Code: " + Test.stringToHex(test.code)); |
| System.out.println("Disasm:"); |
| |
| cs = new Capstone(test.arch, test.mode); |
| Capstone.cs_insn[] all_ins = cs.disasm(test.code, 0x1000); |
| |
| for (int j = 0; j < all_ins.length; j++) { |
| print_ins_detail(all_ins[j]); |
| System.out.println(); |
| } |
| |
| System.out.printf("0x%x:\n\n", all_ins[all_ins.length-1].address + all_ins[all_ins.length-1].size); |
| } |
| } |
| |
| } |