#!/snap/bin/powershell # Syntax: ./send-tcp.ps1 [] [] [] # Description: sends a TCP message to the given IP address and port # Author: Markus Fleschutz # Source: github.com/fleschutz/PowerShell # License: CC0 param([string]$TargetIP, [int]$TargetPort, [string]$Message) try { if ($TargetIP -eq "" ) { $TargetIP = read-host "Enter target IP address" } if ($TargetPort -eq 0 ) { $TargetPort = read-host "Enter target port" } if ($Message -eq "" ) { $Message = read-host "Enter message to send" } $IP = [System.Net.Dns]::GetHostAddresses($TargetIP) $Address = [System.Net.IPAddress]::Parse($IP) $Socket = New-Object System.Net.Sockets.TCPClient($Address,$TargetPort) $Stream = $Socket.GetStream() $Writer = New-Object System.IO.StreamWriter($Stream) $Message | % { $Writer.WriteLine($_) $Writer.Flush() } $Stream.Close() $Socket.Close() write-output "Done." exit 0 } catch { write-error "ERROR in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])" exit 1 }