tftp.ps1 - powershell script by ActiveXperts Software

tftp.ps1 checks for file existence on a TFTP host.

Use tftp.ps1 directly from ActiveXperts Network Monitor; in the Manager's 'Monitor' menu, select 'New Check (Script)' and select tftp.ps1. 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.ps1 script code

#################################################################################
# ActiveXperts Network Monitor PowerShell script, © ActiveXperts Software B.V.
# For more information about ActiveXperts Network Monitor, visit the ActiveXperts 
# Network Monitor web site at http://www.activexperts.com
#################################################################################
# Script
#     Tftp.ps1
# 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
# Declare Parameters:
#     1) strHost (string) - Host name or IP address of the TFTP host
#     2) strFile (string) - The file to check 
# Usage:
#     .\Tftp.ps1 '<Hostname | IP>' '<File>' 
# Sample:
#     .\Tftp.ps1 'srv202.activexperts-labs.com' '/network-monitor/readme.txt'
#################################################################################

# -- Declare Parameters
param( [string]$strHost = '', [string]$strFile = '' )
  
# -- Use _activexperts.ps1 with common functions 
. 'C:\Program Files\ActiveXperts\Network Monitor\Scripts\Monitor (ps1)\_activexperts.ps1' 


#################################################################################
# // --- Main script ---
#################################################################################

# -- Clear screen and clear error
cls
$Error.Clear()
  
# -- Validate parameters, return on parameter mismatch
if( $strHost -eq '' -or $strFile -eq '' )
{
  $res = 'UNCERTAIN: Invalid number of parameters - Usage: .\Tftp.ps1 "<Hostname | IP>" "<filename>"'
  echo $res
  exit
}

# Declare local variables by assigning an initial value to it
$objTftpServer = new-object -comobject AxNetwork.TftpServer

# Use default port 69
$objTftpServer.HostPort = 69

# Create a temp file to download file to
$objFileSystem = new-object -comobject Scripting.FileSystemObject

$strTempFile = $objFileSystem.GetSpecialFolder(2).Path
$strTempFile += '\'
$strTempfile += $objFileSystem.GetTempName()

# Get file
$objTftpServer.Get( $strHost,$strFile,$strTempFile )

if ( $objTftpServer.LastError -eq 0 )
{
  $res = 'SUCCESS: File [' + $strFile + '] found on TFTP host [' + $strHost + ']; size=[' + $objTftpServer.BytesReceived + ' bytes]'
  echo $res  
}
else
{
  $res = 'ERROR: File [' + $strFile + '] not found on TFTP host; result=[' + $objTftpServer.LastError + '; ' + $objTftpServer.GetErrorDescription($objTftpServer.LastError) + ']'
  echo $res
}

if( $objFileSystem.FileExists( $strTempFile ) )
{
  $objFileSystem.DeleteFile( $strTempFile )
}

exit


#################################################################################
# // --- Catch script exceptions ---
#################################################################################

trap [Exception]
{
  $res = 'UNCERTAIN: ' + $_.Exception.Message
  echo $res
  exit
}