1 namespace GetMacCore
2 {
3 using System;
4 using System.IO;
5 using System.Management;
6 using System.Text;
7
8 internal class Program
9 {
10 public static string GetMacAddress()
11 {
12 try
13 {
14 string str = string.Empty;
15 foreach (ManagementObject obj2 in new ManagementClass("Win32_NetworkAdapterConfiguration").GetInstances())
16 {
17 if ((bool)obj2["IPEnabled"])
18 {
19 str = obj2["MacAddress"].ToString();
20 break;
21 }
22 }
23 return str;
24 }
25 catch
26 {
27 return "unknown";
28 }
29 }
30
31 public static void Main(string[] args)
32 {
33 string s = "{\"mac\":\"" + GetMacAddress() + "\"}";
34 byte[] bytes = Encoding.UTF8.GetBytes(s);
35 Stream stream1 = Console.OpenStandardOutput();
36 stream1.WriteByte((byte)(bytes.Length & 0xff));
37 stream1.WriteByte((byte)((bytes.Length >> 8) & 0xff));
38 stream1.WriteByte((byte)((bytes.Length >> 0x10) & 0xff));
39 stream1.WriteByte((byte)((bytes.Length >> 0x18) & 0xff));
40 stream1.Write(bytes, 0, bytes.Length);
41 stream1.Flush();
42 Console.ReadLine();
43 stream1.Close();
44 }
45
46 private static string OpenStandardStreamIn()
47 {
48 Stream stream = Console.OpenStandardInput();
49 int num = 0;
50 byte[] buffer = new byte[4];
51 stream.Read(buffer, 0, 4);
52 num = BitConverter.ToInt32(buffer, 0);
53 string str = "";
54 for (int i = 0; i < num; i++)
55 {
56 str = str + ((char)stream.ReadByte()).ToString();
57 }
58 return str;
59 }
60 }
61 }
