C# WinCE开发中获取MAC与IP地址

 1     
 2 public class SysInfo 
 3 { 
 4     private static string[] strEncrypt = new string[] { 
 5                         "1", "2", "3", "4", "5", "6", "7", "8", "9", "0", "K", "L", "M", "N", 
 6                         "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "AA", "AB", 
 7                         "AC", "AD", "AE", "AF", "AG", "AH", "AI", "AJ", "AK", "AL", "AM", "AN", "AO", "AP" }; 
 8     private static Int32 METHOD_BUFFERED = 0; 
 9     private static Int32 FILE_ANY_ACCESS = 0; 
10     private static Int32 FILE_DEVICE_HAL = 0x00000101; 
11     private const Int32 ERROR_NOT_SUPPORTED = 0x32; 
12     private const Int32 ERROR_INSUFFICIENT_BUFFER = 0x7A; 
13     private static Int32 IOCTL_HAL_GET_DEVICEID = ((FILE_DEVICE_HAL) << 16) | ((FILE_ANY_ACCESS) << 14) | ((21) << 2) | (METHOD_BUFFERED); 
14     [DllImport("coredll.dll", SetLastError = true)] 
15     private static extern bool KernelIoControl(Int32 dwIoControlCode, IntPtr lpInBuf, Int32 nInBufSize, byte[] lpOutBuf, Int32 nOutBufSize, ref   Int32 lpBytesReturned); 
16     [DllImport("Iphlpapi.dll", EntryPoint = "SendARP")] 
17     public static extern uint SendARP(uint DestIP, uint SrcIP, byte[] pMacAddr, ref uint PhyAddrLen); 
18 
19 
20 
21 
22         /// <summary>
23         /// 获取MAC地址
24         /// </summary>
25         /// <returns></returns>
26         public string GetMac() 
27         { 
28             uint ip = 0; 
29             string mac = string.Empty; 
30             //取本机IP列表
31             IPAddress[] ips = Dns.GetHostEntry(Dns.GetHostName()).AddressList; 
32             //取本机IP 
33             byte[] ipp = ips[1].GetAddressBytes(); 
34             ip = (uint)((ipp[0]) | (ipp[1] << 8) | (ipp[2] << 16) | (ipp[3] << 24)); 
35             //取MAC 
36             byte[] MacAddr = new byte[6]; 
37             uint PhyAddrLen = 6; 
38             uint hr = SendARP(ip, 0, MacAddr, ref PhyAddrLen); 
39             if (MacAddr[0] != 0 || MacAddr[1] != 0 || MacAddr[2] != 0 || MacAddr[3] != 0 || MacAddr[4] != 0 || MacAddr[5] != 0) 
40             { 
41                 mac = MacAddr[0].ToString("X2")+ ":" + MacAddr[1].ToString("X2") + ":" + 
42                       MacAddr[2].ToString("X2")+ ":" + MacAddr[3].ToString("X2") + ":" +
43                 MacAddr[4].ToString("X2") + ":" + MacAddr[5].ToString("X2"); 
44             } 
45             return mac; 
46         } 
47 
48 
49 
50         /// <summary>
51         ///获取本机IP 
52         /// </summary>
53         /// <returns></returns>
54         public string GetIpAddress() 
55         { 
56             string strHostName = Dns.GetHostName(); //得到本机的主机名
57             IPHostEntry ipEntry = Dns.GetHostByName(strHostName); //取得本机IP 
58             string strAddr = ipEntry.AddressList[1].ToString(); 
59             return strAddr;  www.2cto.com
60         } 
61 }