Added send-tcp.ps1

README.md

@@ -28,6 +28,7 @@ The following PowerShell scripts can be found in the [Scripts/](Scripts/) subfol
 * [reboot.ps1](Scripts/reboot.ps1) - reboots the local computer, administrator rights might be needed
 * [scan-ports.ps1](Scripts/scan-ports.ps1) - scans the network for open/closed ports
 * [send-email.ps1](Scripts/send-email.ps1) - sends an email message
+* [send-tcp.ps1](Scripts/send-udp.ps1) - sends a TCP message to the given IP address and port
 * [send-udp.ps1](Scripts/send-udp.ps1) - sends a UDP datagram message to the given IP address and port
 * [SHA1.ps1](Scripts/SHA1.ps1) - prints the SHA1 checksum of the given file
 * [SHA256.ps1](Scripts/SHA256.ps1) - prints the SHA256 checksum of the given file

Scripts/send-tcp.ps1

@@ -0,0 +1,39 @@
+#!/snap/bin/powershell
+
+# Syntax:       ./send-tcp.ps1 [<IP>] [<port>] [<message>]
+# 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]$Message)
+
+if ($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"
+}
+
+try {
+        $IP = [System.Net.Dns]::GetHostAddresses($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()
+
+	echo "Done."
+	exit 0
+} catch {
+	Write-Error "ERROR in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
+	exit 1
+}