public static string GetMacAddress() { string addr = ""; int cb; TmphASTAT adapter; TmphNCB Ncb = new TmphNCB(); char uRetCode; TmphLANA_ENUM lenum; Ncb.ncb_command = (byte)TmphNCBCONST.NCBENUM; cb = Marshal.SizeOf(typeof(TmphLANA_ENUM)); Ncb.ncb_buffer = Marshal.AllocHGlobal(cb); Ncb.ncb_length = (ushort)cb; uRetCode = TmphWin32API.Netbios(ref Ncb); lenum = (TmphLANA_ENUM)Marshal.PtrToStructure(Ncb.ncb_buffer, typeof(TmphLANA_ENUM)); Marshal.FreeHGlobal(Ncb.ncb_buffer); if (uRetCode != (short)TmphNCBCONST.NRC_GOODRET) return ""; for (int i = 0; i < lenum.length; i++) { Ncb.ncb_command = (byte)TmphNCBCONST.NCBRESET; Ncb.ncb_lana_num = lenum.lana[i]; uRetCode = TmphWin32API.Netbios(ref Ncb); if (uRetCode != (short)TmphNCBCONST.NRC_GOODRET) return ""; Ncb.ncb_command = (byte)TmphNCBCONST.NCBASTAT; Ncb.ncb_lana_num = lenum.lana[i]; Ncb.ncb_callname[0] = (byte)'*'; cb = Marshal.SizeOf(typeof(TmphADAPTER_STATUS)) + Marshal.SizeOf(typeof(TmphNAME_BUFFER)) * (int)TmphNCBCONST.NUM_NAMEBUF; Ncb.ncb_buffer = Marshal.AllocHGlobal(cb); Ncb.ncb_length = (ushort)cb; uRetCode = TmphWin32API.Netbios(ref Ncb); adapter.adapt = (TmphADAPTER_STATUS)Marshal.PtrToStructure(Ncb.ncb_buffer, typeof(TmphADAPTER_STATUS)); Marshal.FreeHGlobal(Ncb.ncb_buffer); if (uRetCode == (short)TmphNCBCONST.NRC_GOODRET) { if (i > 0) addr += "-"; addr = string.Format("{0,2:X}-{1,2:X}-{2,2:X}-{3,2:X}-{4,2:X}-{5,2:X}", adapter.adapt.adapter_address[0], adapter.adapt.adapter_address[1], adapter.adapt.adapter_address[2], adapter.adapt.adapter_address[3], adapter.adapt.adapter_address[4], adapter.adapt.adapter_address[5]); } } return addr; }
public static extern char Netbios(ref TmphNCB ncb);