tftp.vbs - vbscript script by ActiveXperts Software

tftp.vbs checks for file existence on a TFTP host.

Use tftp.vbs directly from ActiveXperts Network Monitor; in the Manager's 'Monitor' menu, select 'New Check (Script)' and select tftp.vbs. Configure the required parameter, or press 'Load a working sample'.

In ActiveXperts Network Monitor, Administrators can use three different scripting languages: Powershell, VBScript and SSH.

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tftp.vbs script code

' ///////////////////////////////////////////////////////////////////////////////
' // ActiveXperts Network Monitor  - VBScript based checks
' // For more information about ActiveXperts Network Monitor and VBScript, visit
' // http://www.activexperts.com/support/network-monitor/online/vbscript/
' ///////////////////////////////////////////////////////////////////////////////

Option Explicit

' Declaration of global variables
Dim   SYSDATA, SYSEXPLANATION   ' SYSDATA is displayed in the 'Data' column in the Manager; SYSEXPLANATION in the 'LastResponse' column

' Constants - return values
Const retvalUnknown = 1         ' ActiveXperts Network Monitor functions should always return True (-1, Success), False (0, Error) or retvalUnknown (1, Uncertain)

' // To test a function outside Network Monitor (e.g. using CSCRIPT from the
' // command line), remove the comment character (') in the following lines:
' Dim bResult
' bResult = CheckTftp( "srv202.activexperts-labs.com", "/network-monitor/readme.txt" )
' WScript.Echo "Return value: [" & bResult & "]"
' WScript.Echo "SYSDATA: [" & SYSDATA & "]"
' WScript.Echo "SYSEXPLANATION: [" & SYSEXPLANATION & "]"


Function CheckTftp( strHost, strFile )
' Description:
'     Check for file existence on a TFTP host
'     This function uses ActiveXperts Network Component.
'     ActiveXperts Network Component is automatically licensed when ActiveXperts Network Monitor is purchased
'     For more information about ActiveXperts Network Component, see: www.activexperts.com/network-component
' Parameters:
'     1) strHost - Host name or IP address of the TFTP host
'     2) strFile - The file to check 
' Usage:
'     CheckTftp( "<Host>", "<File>" )
' Sample:
'     CheckTftp( "srv202.activexperts-labs.com", "/network-monitor/readme.txt" )

  Dim objTftpServer, objFileSystem, strTempFile

  CheckTftp           = retvalUnknown  ' Default return value
  SYSDATA             = ""             ' Not used by this function
  SYSEXPLANATION      = ""             ' Set initial value

  Set objTftpServer = CreateObject("AxNetwork.TftpServer")

  ' Use binary transfer
  objTftpServer.BinaryTransfer = True

  ' Use default port 69
  objTftpServer.HostPort       = 69

  ' Create a temp file to download file to
  Set objFileSystem = CreateObject("Scripting.FileSystemObject") 
  strTempFile = objFileSystem.GetSpecialFolder(2) & "\" & objFileSystem.GetTempName

  ' Get file
  objTftpServer.Get strHost, strFile, strTempFile
  If( objTftpServer.LastError = 0 ) Then
    CheckTftp       = True
    SYSEXPLANATION  = "File [" & strFile & "] found on TFTP host [" & strHost & "]; size=[" & objTftpServer.BytesReceived & " bytes]"
  Else
    CheckTftp       = False
    SYSEXPLANATION  = "File [" & strFile & "] not found on TFTP host; result=[" & objTftpServer.LastError & ": " & objTftpServer.GetErrorDescription( objTftpServer.LastError ) & "]"
  End If

  If( objFileSystem.FileExists( strTempFile ) ) Then
    objFileSystem.DeleteFile strTempFile
  End If 

End Function