Obtains all folders and search files of the specified IP address or host name in the LAN.

Recently, I made a function for all the specified files in the LAN, so I spent some effort to complete some of the functions.

Using system;

Using system. Collections. Generic;

Using system. componentmodel;

Using system. Data; using system. drawing;

Using system. IO; using system. LINQ;

Using system. text;

Using system. Threading. tasks;

Using system. Windows. forms;

Using system. collections;

Using system. runtime. interopservices;

Using system. diagnostics;

Namespace quicksearchtoolsinnet {

Public partial class form1: FORM {

Public form1 (){

Initializecomponent ();

}

Private void btnsearch_click (Object sender, eventargs e ){

# Region this part is mainly used to test a computer, and the search speed will be slow if there are too many

Ilist <string> lstips = getipsbygroup ();

String IP = @ "\ ckf4989v ";

String selectpath = @ "C :\";

Foreach (VAR item in lstips ){

If (item. tolower (). Contains (IP) {selectpath = IP + @"\";}}

# Endregion

String [] sharelist = netsharelist (selectpath );

Fileinfo [] textfiles = NULL;

Array. foreach (sharelist, share => {

String sharepath = selectpath + share;

VaR dicinfo = new directoryinfo (sharepath); // select the directory information

Textfiles = dicinfo. getfiles ("*. *", searchoption. alldirectories );

});

Stringbuilder sb = new stringbuilder ();

If (textfiles! = NULL ){

Foreach (VAR item in textfiles ){

SB. append (item. fullname + "\ r \ n ");

}}

This. richtextbox1.text = sb. tostring ();

// Directoryinfo dir = new directoryinfo (IP );

// Stringbuilder sb = getfiless (DIR );

// MessageBox. Show (sb. tostring ());

}

# Region

[Structlayout (layoutkind. Sequential)]

Protected struct pai_info_1 {

[Financialas (unmanagedtype. lpwstr)]

Public String shi1_netname;

[Financialas (unmanagedtype. U4)]

Public uint shihei type;

[Financialas (unmanagedtype. lpwstr)]

Public String shi1_remark;

}

[Dllimport ("netapi32.dll", entrypoint = "NetShareEnum")]

Protected static extern int NetShareEnum (

[Financialas (unmanagedtype. lpwstr)] string servername,

[Financialas (unmanagedtype. U4)] uint level, out intptr bufptr,

[Financialas (unmanagedtype. U4)] int prefmaxlen,

[Financialas (unmanagedtype. U4)] Out uint entriesread,

[Financialas (unmanagedtype. U4)] Out uint totalentries,

[Financialas (unmanagedtype. U4)] Out uint resume_handle

);

Private string [] netsharelist (string server ){

Intptr buffer; uint entriesread; uint totalentries; uint resume_handle;

//-1 should be used to get all the shares. The example in msdn is written in this way. If 0 is returned, the result is successful.

If (NetShareEnum (server, 1, out buffer,-1, out entriesread, out totalentries, out resume_handle) = 0 ){

Int32 PTR = buffer. toint32 ();

Arraylist alshare = new arraylist ();

For (INT I = 0; I <entriesread; I ++ ){

Pai_info_1 partition info = (pai_info_1) Marshal. ptrtostructure (New intptr (PTR), typeof (pai_info_1); If (partition info. shi1_type = 0) // disk drive type {

Alshare. Add (Response info. shiw.netname );

}

PTR + = marshal. sizeof (partition info); // a bit similar to C code

}

String [] Share = new string [alshare. Count];

For (INT I = 0; I <alshare. Count; I ++) {share [I] = alshare [I]. tostring () ;}return share ;}

Else return NULL;

}

# Endregion

# Region obtain the names of all computers in the workgroup

Private ilist <string> getipsbygroup (){

Processstartinfo info = new processstartinfo ("cmd.exe ");

Info. Arguments = "/K net View"; // the input and output streams can be captured only when the process is executed without the shell.

Info. useshellexecute = false; // redirect the input stream

// Info. redirectstandardinput = true;

Info. redirectstandardoutput = true; // redirect the output stream

PROCESS p = process. Start (Info );

Streamreader output = P. standardoutput; // writer used to obtain the output stream

Ilist <string> lstips = new list <string> ();

While (! Output. endofstream) {string line = output. Readline (); If (line. startswith ("\\\\") lstips. Add (line);} return lstips ;}

# Endregion

 

# Region recursively retrieve all files in a directory (including files in subdirectories) ---------------- discarded

/// <Summary> /// recursively retrieve all files in a directory (including files in subdirectories) -------------- obsolete /// </Summary>

/// <Param name = "dir"> outermost folder path </param>

/// <Returns> </returns>

Private stringbuilder getfiless (directoryinfo DIR ){

Fileinfo [] files = dir. getfiles ();

Stringbuilder sb = new stringbuilder ();

Foreach (VAR item in files ){

SB. append (item. fullname + "\ r \ n ");

}

If (dir. getdirectories (). length> 0 ){

Directoryinfo [] dirs = dir. getdirectories ();

Foreach (VAR item in dirs ){

SB. append (getfiless (item) + "\ r \ n ");

}}

Return Sb ;}

# Endregion

}}