C # obtain the hard disk and cpu id and nic Mac

/// <Summary> /// obtain the hard disk and cpu id and nic Mac /// </Summary> public class hardwareinfo {// <summary> // obtain the machine name /// </Summary> /// <returns> </returns> Public String gethostname () {return system. net. DNS. gethostname () ;}/// <summary> /// obtain the cpu id /// </Summary> /// <returns> </returns> Public String getcpuid () {try {managementclass MC = new managementclass ("win32_processor"); managementobjectcollection MOC = MC. getinstances (); string strcpuid = NULL; foreach (managementobject Mo in MoC) {strcpuid = Mo. properties ["processorid"]. value. tostring (); break;} return strcpuid;} catch {return "";}} // end method /// <summary> /// obtain the first hard disk number /// </Summary> /// <returns> </returns> Public String getharddiskid () {try {// managementobjectsearcher searcher = new managementobjectsearcher ("select * From win32_physi Calmedia "); string strharddiskid = NULL; managementclass cimobject = new managementclass (" win32_diskdrive "); managementobjectcollection MOC = cimobject. getinstances (); foreach (managementobject Mo in MoC) {strharddiskid = (string) Mo. properties ["model"]. value; break;} // foreach (managementobject Mo in searcher. get () // {// strharddiskid = Mo ["serialnumber"]. tostring (). trim (); // break; //} retur N strharddiskid;} catch {return "";}} /// <summary> /// obtain the NIC Mac /// </Summary> /// <returns> </returns> Public String getmacaddress () {string ADDR = ""; try {int CB; astat adapter; NCB = new NCB (); char uretcode; lana_enum lenum; NCB. ncb_command = (byte) ncbconst. ncbenum; Cb = marshal. sizeof (typeof (lana_enum); NCB. ncb_buffer = marshal. allochglobal (CB); NCB. ncb_length = (ushort) Cb; uretcod E = WIN32API. netBIOS (ref NCB); lenum = (lana_enum) Marshal. ptrtostructure (NCB. ncb_buffer, typeof (lana_enum); marshal. freehglobal (NCB. ncb_buffer); If (uretcode! = (Short) ncbconst. nrc_goodret) Return ""; for (INT I = 0; I <lenum. length; I ++) {NCB. ncb_command = (byte) ncbconst. ncbreset; NCB. ncb_lana_num = lenum. lana [I]; uretcode = WIN32API. netBIOS (ref NCB); If (uretcode! = (Short) ncbconst. nrc_goodret) Return ""; NCB. ncb_command = (byte) ncbconst. ncbastat; NCB. ncb_lana_num = lenum. lana [I]; NCB. ncb_callname [0] = (byte) '*'; Cb = marshal. sizeof (typeof (adapter_status) + marshal. sizeof (typeof (name_buffer) * (INT) ncbconst. num_namebuf; NCB. ncb_buffer = marshal. allochglobal (CB); NCB. ncb_length = (ushort) Cb; uretcode = WIN32API. netBIOS (ref NCB); adapter. adapt = (adapter_status) Marshal. ptrtostructure (NCB. ncb_buffer, typeof (adapter_status); marshal. freehglobal (NCB. ncb_buffer); If (uretcode = (short) ncbconst. nrc_goodret) {if (I> 0) ADDR + = ":"; ADDR = string. format ("{: 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]) ;}} catch {} return ADDR. replace ('', '0');} public Enum ncbconst {ncbnamsz = 16,/* absolute length of a net name */max_lana = 254, /* Lana's in range 0 to max_lana intrusive */ncbenum = 0x37,/* NCB enumerate Lana numbers */nrc_goodret = 0x00, /* good return */ncbreset = 0x32,/* NCB reset */ncbastat = 0x33,/* NCB adapter status */num_namebuf = 30, /* Number of name's buffer */} [structlayout (layoutkind. sequential)] public struct adapter_status {[financialas (unmanagedtype. byvalarray, sizeconst = 6)] public byte [] adapter_address; Public byte region; Public byte reserved0; Public byte adapter_type; Public byte rev_minor; Public ushort duration; Public ushort frmr_recv; public ushort instances; Public uint instances; Public ushort t1_timeouts; Public ushort ti_timeouts; Public uint reserved1; public ushort free_ncbs; Public ushort protocol; Public ushort max_ncbs; Public ushort protocol; Public ushort pending_sess; Public ushort protocol; Public ushort max_sess; Public ushort protocol; public ushort name_count;} [structlayout (layoutkind. sequential)] public struct name_buffer {[financialas (unmanagedtype. byvalarray, sizeconst = (INT) ncbconst. ncbnamsz)] public byte [] Name; Public byte name_num; Public byte name_flags;} [structlayout (layoutkind. sequential)] public struct NCB {public byte ncb_command; Public byte serial; Public byte ncb_lsn; Public byte ncb_num; Public intptr ncb_buffer; Public ushort ncb_length; [financialas (unmanagedtype. byvalarray, sizeconst = (INT) ncbconst. ncbnamsz)] public byte [] ncb_callname; [financialas (unmanagedtype. byvalarray, sizeconst = (INT) ncbconst. ncbnamsz)] public byte [] ncb_name; Public byte ncb_rto; Public byte ncb_sto; Public intptr ncb_post; Public byte ncb_lana_num; Public byte loss; [same Alas (unmanagedtype. byvalarray, sizeconst = 10)] public byte [] ncb_reserve; Public intptr ncb_event;} [structlayout (layoutkind. sequential)] public struct lana_enum {public byte length; [financialas (unmanagedtype. byvalarray, sizeconst = (INT) ncbconst. max_lana)] public byte [] Lana;} [structlayout (layoutkind. auto)] public struct astat {public adapter_status adapt; [financialas (unmanagedtype. byvalarray, sizeconst = (INT) ncbconst. num_namebuf)] public name_buffer [] namebuff;} public class WIN32API {[dllimport ("netapi32.dll")] public static extern char NetBIOS (ref NCB );}}