ping maskine

Opret et modul, og indsæt denne kode:

'-------------- MODUL --------------
Option Explicit

Private Const ICMP_SUCCESS As Long = 0
Private Const ICMP_STATUS_BUFFER_TO_SMALL = 11001                  'Buffer Too Small
Private Const ICMP_STATUS_DESTINATION_NET_UNREACH = 11002          'Destination Net Unreachable
Private Const ICMP_STATUS_DESTINATION_HOST_UNREACH = 11003          'Destination Host Unreachable
Private Const ICMP_STATUS_DESTINATION_PROTOCOL_UNREACH = 11004      'Destination Protocol Unreachable
Private Const ICMP_STATUS_DESTINATION_PORT_UNREACH = 11005          'Destination Port Unreachable
Private Const ICMP_STATUS_NO_RESOURCE = 11006                      'No Resources
Private Const ICMP_STATUS_BAD_OPTION = 11007                        'Bad Option
Private Const ICMP_STATUS_HARDWARE_ERROR = 11008                    'Hardware Error
Private Const ICMP_STATUS_LARGE_PACKET = 11009                      'Packet Too Big
Private Const ICMP_STATUS_REQUEST_TIMED_OUT = 11010                'Request Timed Out
Private Const ICMP_STATUS_BAD_REQUEST = 11011                      'Bad Request
Private Const ICMP_STATUS_BAD_ROUTE = 11012                        'Bad Route
Private Const ICMP_STATUS_TTL_EXPIRED_TRANSIT = 11013              'TimeToLive Expired Transit
Private Const ICMP_STATUS_TTL_EXPIRED_REASSEMBLY = 11014            'TimeToLive Expired Reassembly
Private Const ICMP_STATUS_PARAMETER = 11015                        'Parameter Problem
Private Const ICMP_STATUS_SOURCE_QUENCH = 11016                    'Source Quench
Private Const ICMP_STATUS_OPTION_TOO_BIG = 11017                    'Option Too Big
Private Const ICMP_STATUS_BAD_DESTINATION = 11018                  'Bad Destination
Private Const ICMP_STATUS_NEGOTIATING_IPSEC = 11032                'Negotiating IPSEC
Private Const ICMP_STATUS_GENERAL_FAILURE = 11050                  'General Failure

Public Const WINSOCK_ERROR = "Windows Sockets not responding correctly."
Public Const INADDR_NONE As Long = &HFFFFFFFF
Public Const WSA_SUCCESS = 0
Public Const WS_VERSION_REQD As Long = &H101

'Clean up sockets.

Private Declare Function WSACleanup Lib "WSOCK32.DLL" () As Long

'Open the socket connection.
Private Declare Function WSAStartup Lib "WSOCK32.DLL" (ByVal wVersionRequired As Long, lpWSADATA As WSADATA) As Long

'Create a handle on which Internet Control Message Protocol (ICMP) requests can be issued.
Private Declare Function IcmpCreateFile Lib "icmp.dll" () As Long

'Convert a string that contains an (Ipv4) Internet Protocol dotted address into a correct address.
Private Declare Function inet_addr Lib "WSOCK32.DLL" (ByVal cp As String) As Long

'Close an Internet Control Message Protocol (ICMP) handle that IcmpCreateFile opens.
Private Declare Function IcmpCloseHandle Lib "icmp.dll" (ByVal IcmpHandle As Long) As Long

'Information about the Windows Sockets implementation
Private Type WSADATA
  wVersion As Integer
  wHighVersion As Integer
  szDescription(0 To 256) As Byte
  szSystemStatus(0 To 128) As Byte
  iMaxSockets As Long
  iMaxUDPDG As Long
  lpVendorInfo As Long
End Type

'Send an Internet Control Message Protocol (ICMP) echo request, and then return one or more replies.
Private Declare Function IcmpSendEcho Lib "icmp.dll" _
  (ByVal IcmpHandle As Long, _
    ByVal DestinationAddress As Long, _
    ByVal RequestData As String, _
    ByVal RequestSize As Long, _
    ByVal RequestOptions As Long, _
    ReplyBuffer As ICMP_ECHO_REPLY, _
    ByVal ReplySize As Long, _
    ByVal Timeout As Long) As Long

'This structure describes the options that will be included in the header of an IP packet.
Private Type IP_OPTION_INFORMATION
  Ttl            As Byte
  Tos            As Byte
  Flags          As Byte
  OptionsSize    As Byte
  OptionsData    As Long
End Type

'This structure describes the data that is returned in response to an echo request.
Public Type ICMP_ECHO_REPLY
  address        As Long
  Status          As Long
  RoundTripTime  As Long
  DataSize        As Long
  Reserved        As Integer
  ptrData                As Long
  Options        As IP_OPTION_INFORMATION
  Data            As String * 250
End Type

'-- Ping a string representation of an IP address.
' -- Return a reply.
' -- Return long code.
Public Function ping(sAddress As String, Reply As ICMP_ECHO_REPLY) As Long

Dim hIcmp As Long
Dim lAddress As Long
Dim lTimeOut As Long
Dim StringToSend As String

'Short string of data to send
StringToSend = "hello"

'ICMP (ping) timeout
lTimeOut = 2000 'ms

'Convert string address to a long representation.
lAddress = inet_addr(sAddress)

If (lAddress <> -1) And (lAddress <> 0) Then
       
    'Create the handle for ICMP requests.
    hIcmp = IcmpCreateFile()
   
    If hIcmp Then
        'Ping the destination IP address.
        Call IcmpSendEcho(hIcmp, lAddress, StringToSend, Len(StringToSend), 0, Reply, Len(Reply), lTimeOut)

        'Reply status
        ping = Reply.Status
       
        'Close the Icmp handle.
        IcmpCloseHandle hIcmp
    Else
        Debug.Print "failure opening icmp handle."
        ping = -1
    End If
Else
    ping = -1
End If

End Function

'Clean up the sockets.
Public Sub SocketsCleanup()
 
  WSACleanup
   
End Sub

'Get the sockets ready.

Public Function SocketsInitialize() As Boolean

  Dim WSAD As WSADATA

  SocketsInitialize = WSAStartup(WS_VERSION_REQD, WSAD) = ICMP_SUCCESS

End Function

'Convert the ping response to a message that you can read easily from constants.
Public Function EvaluatePingResponse(PingResponse As Long) As String

  Select Case PingResponse
   
  'Success
  Case ICMP_SUCCESS: EvaluatePingResponse = "Success!"
           
  'Some error occurred
  Case ICMP_STATUS_BUFFER_TO_SMALL:    EvaluatePingResponse = "Buffer Too Small"
  Case ICMP_STATUS_DESTINATION_NET_UNREACH: EvaluatePingResponse = "Destination Net Unreachable"
  Case ICMP_STATUS_DESTINATION_HOST_UNREACH: EvaluatePingResponse = "Destination Host Unreachable"
  Case ICMP_STATUS_DESTINATION_PROTOCOL_UNREACH: EvaluatePingResponse = "Destination Protocol Unreachable"
  Case ICMP_STATUS_DESTINATION_PORT_UNREACH: EvaluatePingResponse = "Destination Port Unreachable"
  Case ICMP_STATUS_NO_RESOURCE: EvaluatePingResponse = "No Resources"
  Case ICMP_STATUS_BAD_OPTION: EvaluatePingResponse = "Bad Option"
  Case ICMP_STATUS_HARDWARE_ERROR: EvaluatePingResponse = "Hardware Error"
  Case ICMP_STATUS_LARGE_PACKET: EvaluatePingResponse = "Packet Too Big"
  Case ICMP_STATUS_REQUEST_TIMED_OUT: EvaluatePingResponse = "Request Timed Out"
  Case ICMP_STATUS_BAD_REQUEST: EvaluatePingResponse = "Bad Request"
  Case ICMP_STATUS_BAD_ROUTE: EvaluatePingResponse = "Bad Route"
  Case ICMP_STATUS_TTL_EXPIRED_TRANSIT: EvaluatePingResponse = "TimeToLive Expired Transit"
  Case ICMP_STATUS_TTL_EXPIRED_REASSEMBLY: EvaluatePingResponse = "TimeToLive Expired Reassembly"
  Case ICMP_STATUS_PARAMETER: EvaluatePingResponse = "Parameter Problem"
  Case ICMP_STATUS_SOURCE_QUENCH: EvaluatePingResponse = "Source Quench"
  Case ICMP_STATUS_OPTION_TOO_BIG: EvaluatePingResponse = "Option Too Big"
  Case ICMP_STATUS_BAD_DESTINATION: EvaluatePingResponse = "Bad Destination"
  Case ICMP_STATUS_NEGOTIATING_IPSEC: EvaluatePingResponse = "Negotiating IPSEC"
  Case ICMP_STATUS_GENERAL_FAILURE: EvaluatePingResponse = "General Failure"
           
  'Unknown error occurred
  Case Else: EvaluatePingResponse = "Unknown Response"
       
  End Select

End Function
'-------------- MODUL --------------


Indsæt denne kode ind i din form:

'--------------- FORM ---------------
Private Sub Form_Load()
Dim Reply As ICMP_ECHO_REPLY
Dim MSG As String
Dim lngSuccess As Long
Dim strIPAddress As String
 
  'Get the sockets ready.
  If SocketsInitialize() Then
     
    'Address to ping
    strIPAddress = InputBox("Indtast IP", "IP", "192.168.1.")
   
    'Ping the IP that is passing the address and get a reply.
    lngSuccess = ping(strIPAddress, Reply)
     
    'Display the results.
    MSG = "Address to Ping: " & strIPAddress
    MSG = MSG & Chr(13) & "Raw ICMP code: " & lngSuccess
    MSG = MSG & Chr(13) & "Ping Response Message : " & EvaluatePingResponse(lngSuccess)
    MSG = MSG & Chr(13) & "Time : " & Reply.RoundTripTime & " ms"
   
    MsgBox MSG
    'Clean up the sockets.
    SocketsCleanup
     
  Else
 
  'Winsock error failure, initializing the sockets.
  MsgBox WINSOCK_ERROR
 
  End If

End Sub
'--------------- FORM ---------------