Ping en server. time
Hej....jeg har fundet dette stk kode, men jeg mangler en time fx ligesom ping i windows 10ms 1ms 50ms bla bla.
er der nogle som kan hjælpe med det i dette stk kode, eller hvis der er nået andet så sig bare til:)
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Imports System
Imports System.Data.SqlClient
Imports System.Net
Imports System.Net.Sockets
Imports System.Threading
Module Module1
Sub Main()
Dim testPing As New clsPing
Dim a As Long = testPing.Ping("10.0.0.4")
Console.WriteLine(testPing.GetLastError.Description)
Console.WriteLine(testping.)
End Sub
End Module
'modified by Thomas Fischer 04/2004 (http://www.thomas-fischer.org) & ohters (see below)
'*
'* Parts of the code based on information from Visual Studio Magazine
'* more info : http://www.fawcette.com/vsm/2002_03/magazine/columns/qa/default.asp
'*
Public Class StateObj
Public sck As Sockets.Socket
Public Buffer(255) As Byte
Public BufferSize As Integer
Public from As EndPoint
Public BytesReceived As Integer
Public TimeOut As Boolean = False
Public rectime As Double
End Class
Public Class clsPing
Public Structure stcError
Dim Number As Integer
Dim Description As String
End Structure
Private Const PING_ERROR_BASE As Long = &H8000
Public Const PING_SUCCESS As Long = 0
Public Const PING_ERROR As Long = (-1)
Public Const PING_ERROR_HOST_NOT_FOUND As Long = PING_ERROR_BASE + 1
Public Const PING_ERROR_SOCKET_DIDNT_SEND As Long = PING_ERROR_BASE + 2
Public Const PING_ERROR_HOST_NOT_RESPONDING As Long = PING_ERROR_BASE + 3
Public Const PING_ERROR_TIME_OUT As Long = PING_ERROR_BASE + 4
Private Const ICMP_ECHO As Integer = 8
Private Const SOCKET_ERROR As Integer = -1
Private udtError As stcError
Private Const intPortICMP As Integer = 7
Private Const intBufferHeaderSize As Integer = 8
Private Const intPackageHeaderSize As Integer = 28
Private byteDataSize As Byte
Private lngTimeOut As Integer
Private ipheLocalHost As System.Net.IPHostEntry
Protected alldone As New ManualResetEvent(False)
'Public IP As String
Private IPad As IPAddress
Private ID As Short
Private epServer As System.Net.EndPoint
Private sequence As Byte = 0
'*
'* Class Constructor
'*
Public Sub New(Optional ByVal Identifier As Short = 0)
ID = Identifier
udtError = New stcError
'*
'* Get local IP and transform in EndPoint
'*
ipheLocalHost = System.Net.Dns.GetHostByName(System.Net.Dns.GetHostName())
End Sub
' Ping using asynchronous read.
'Author: Lionel BERTON
'Source: clsPing class from Paulo dos Santos Silva Jr
'Date: 18th may 2003
Public Function Ping(ByVal IP As String, Optional ByVal DataSize As Byte = 32, Optional ByVal Timeout As Integer = 1000) As Double
Dim aReplyBuffer(255) As Byte
Dim intStart As Double
Dim epFrom As System.Net.EndPoint
Dim ipepServer As System.Net.IPEndPoint
byteDataSize = DataSize
lngTimeOut = Timeout
IPad = IPAddress.Parse(IP)
'*
'* Transforms the IP address in EndPoint
'*
ipepServer = New System.Net.IPEndPoint(IPad, 0)
epServer = CType(ipepServer, System.Net.EndPoint)
epFrom = New System.Net.IPEndPoint(ipheLocalHost.AddressList(0), 0)
'*
'* Builds the packet to send
'*
DataSize = Convert.ToByte(DataSize + intBufferHeaderSize)
'*
'* The packet must by an even number, so if the DataSize is and odd number adds one
'*
If (DataSize Mod 2 = 1) Then
DataSize += Convert.ToByte(1)
End If
Dim aRequestBuffer(DataSize - 1) As Byte
'*
'* --- ICMP Echo Header Format ---
'* (first 8 bytes of the data buffer)
'*
'* Buffer (0) ICMP Type Field
'* Buffer (1) ICMP Code Field
'* (must be 0 for Echo and Echo Reply)
'* Buffer (2) checksum hi
'* (must be 0 before checksum calc)
'* Buffer (3) checksum lo
'* (must be 0 before checksum calc)
'* Buffer (4) ID hi
'* Buffer (5) ID lo
'* Buffer (6) sequence hi
'* Buffer (7) sequence lo
'* Buffer (8)..(n) Ping Data
'*
'*
'* Set Type Field
'*
aRequestBuffer(0) = Convert.ToByte(8) ' ECHO Request
'*
'* Set ID field
'*
BitConverter.GetBytes(ID).CopyTo(aRequestBuffer, 4)
'*
'* Set Sequence
'*
BitConverter.GetBytes(sequence).CopyTo(aRequestBuffer, 6)
'*
'* Load some data into buffer
'*
Dim i As Integer
For i = 8 To DataSize - 1
aRequestBuffer(i) = Convert.ToByte(i Mod 8)
Next i
'*
'* Calculate Checksum
'*
Call CreateChecksum(aRequestBuffer, DataSize, aRequestBuffer(2), aRequestBuffer(3))
'*
'* Create the socket
'*
Dim sckSocket As New System.Net.Sockets.Socket( _
Net.Sockets.AddressFamily.InterNetwork, _
Net.Sockets.SocketType.Raw, _
Net.Sockets.ProtocolType.Icmp)
sckSocket.Blocking = False
'*
'* Sends Package
'*
alldone.Reset()
Dim so As New StateObj
so.sck = sckSocket
'socket returns a packet with the IP header (20 bytes) so with 8 bytes
'header for ICMP and 32 bytes of data we should get 60 bytes but sometimes
' it is more or less... so let's take it large
'
so.BufferSize = DataSize + 30
so.from = epServer
Dim ar As IAsyncResult
sckSocket.SendTo(aRequestBuffer, 0, DataSize, SocketFlags.None, ipepServer)
'*
'* Records the Start Time, after sending the Echo Request
'*
intStart = DateTime.Now.Ticks 'System.Environment.TickCount
ar = sckSocket.BeginReceiveFrom(so.Buffer, 0, so.BufferSize, SocketFlags.None, so.from, New AsyncCallback(AddressOf callbackfunc), so)
Dim ret As Boolean = False
ret = alldone.WaitOne(lngTimeOut, False) 'return false if timeout
alldone.Close()
If ret = False Then
so.TimeOut = True
sckSocket.Close()
sckSocket = Nothing
udtError.Number = PING_ERROR_TIME_OUT
udtError.Description = "Time Out"
'Console.WriteLine("timeout for")
Return (PING_ERROR)
End If
'*
'* Informs on GetLastError the state of the server
'*
'
udtError.Number = BitConverter.ToInt16(so.Buffer, 19)
Select Case so.Buffer(20)
Case 0 : udtError.Description = "Success"
Case 1 : udtError.Description = "Buffer too Small"
Case 2 : udtError.Description = "Destination Unreahable"
Case 3 : udtError.Description = "Dest Host Not Reachable"
Case 4 : udtError.Description = "Dest Protocol Not Reachable"
Case 5 : udtError.Description = "Dest Port Not Reachable"
Case 6 : udtError.Description = "No Resources Available"
Case 7 : udtError.Description = "Bad Option"
Case 8 : udtError.Description = "Hardware Error"
Case 9 : udtError.Description = "Packet too Big"
Case 10 : udtError.Description = "Reqested Timed Out"
Case 11 : udtError.Description = "Bad Request"
Case 12 : udtError.Description = "Bad Route"
Case 13 : udtError.Description = "TTL Exprd In Transit"
Case 14 : udtError.Description = "TTL Exprd Reassemb"
Case 15 : udtError.Description = "Parameter Problem"
Case 16 : udtError.Description = "Source Quench"
Case 17 : udtError.Description = "Option too Big"
Case 18 : udtError.Description = "Bad Destination"
Case 19 : udtError.Description = "Address Deleted"
Case 20 : udtError.Description = "Spec MTU Change"
Case 21 : udtError.Description = "MTU Change"
Case 22 : udtError.Description = "Unload"
Case Else : udtError.Description = "General Failure"
End Select
Return (so.rectime - intStart)
End Function
Private Sub callbackfunc(ByVal ar As IAsyncResult)
Try
Dim rectime As Double = DateTime.Now.Ticks '= System.Environment.TickCount
Dim so As StateObj = CType(ar.AsyncState, StateObj)
If so.TimeOut = False Then
so.BytesReceived = so.sck.EndReceiveFrom(ar, so.from)
If so.BytesReceived > 0 Then
If ID = BitConverter.ToInt16(so.Buffer, 24) Then
so.rectime = rectime
alldone.Set()
Else
ar = so.sck.BeginReceiveFrom(so.Buffer, 0, so.BufferSize, SocketFlags.None, epServer, New AsyncCallback(AddressOf callbackfunc), so)
End If
End If
End If
Catch
End Try
End Sub
Public Function GetLastError() As stcError
Return udtError
End Function
' ICMP requires a checksum that is the one's
' complement of the one's complement sum of
' all the 16-bit values in the data in the
' buffer.
' Use this procedure to load the Checksum
' field of the buffer.
' The Checksum Field (hi and lo bytes) must be
' zero before calling this procedure.
Private Sub CreateChecksum(ByRef data() As Byte, ByVal Size As Integer, ByRef HiByte As Byte, ByRef LoByte As Byte)
Dim i As Integer
Dim chk As Integer = 0
For i = 0 To Size - 1 Step 2
chk += Convert.ToInt32(data(i) * &H100 + data(i + 1))
Next
chk = Convert.ToInt32((chk And &HFFFF&) + Fix(chk / &H10000&))
chk += Convert.ToInt32(Fix(chk / &H10000&))
chk = Not (chk)
HiByte = Convert.ToByte((chk And &HFF00&) / &H100)
LoByte = Convert.ToByte(chk And &HFF)
End Sub
End Class
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