JSL write to stdout

vince_faller — Fri, 09 Jun 2023 18:09:58 GMT

I'm running a JSL script from powershell core on windows. Does anyone have a good way to write to console from JSL so that it writes out to my powershell script?

Currently I'm writing to a temp file and then in the powershell script checking that file in a loop and writing the contents of that file. Hoping someone has done something more robust.

Re: JSL write to stdout

Mark_Bailey — Wed, 02 Feb 2022 19:21:24 GMT

It sounds like you need to make a DLL. JMP works well with those that have a single parameter. That argument could be your string.

Re: JSL write to stdout

vince_faller — Wed, 02 Feb 2022 19:45:05 GMT

Cool. I'll look into it.

Re: JSL write to stdout

Craige_Hales — Thu, 03 Feb 2022 04:35:07 GMT

You could do something like this. Here's (my first ever, more-or-less) powershell script (thanks github and stack overflow!) Fix up the path to the desktop file...


Write-Output "Starting JMP"
Start-Process -FilePath "jmp.exe" -ArgumentList "C:\Users\v1\Desktop\pstest.jsl"
Write-Output "Started JMP"

# https://gist.github.com/staaldraad/153ab9d26d49c387550bcb5f974f7910
# thanks @ https://gist.github.com/staaldraad
$socket = new-object System.Net.Sockets.TcpListener('0.0.0.0', 1080);
if($socket -eq $null){
	exit 1;
}
$socket.start();
$client = $socket.AcceptTcpClient();
$stream = $client.GetStream();
$buffer = new-object System.Byte[] 2048;
# $file = 'c:/afile.exe';
# $fileStream = New-Object System.IO.FileStream($file, [System.IO.FileMode]'Create', [System.IO.FileAccess]'Write');

$encoding = new-object System.Text.AsciiEncoding

do
{
	$rawresponse = $null;
	while($stream.DataAvailable -or $rawresponse -eq $null) {
			$rawresponse = $stream.Read($buffer, 0, 2048);
			if ($rawresponse -gt 0) {
				$response = $encoding.GetString($buffer, 0, $rawresponse)
# 				$fileStream.Write($buffer, 0, $read);
				$response # really? that's all it takes to print to the console?
			}
		}
} While ($rawresponse -gt 0);

# $fileStream.Close();
$socket.Stop();
$client.close();
$stream.Dispose();

Write-Output "all done, exit in 5 seconds..."
Start-Sleep -Seconds 5

Here's a JSL script, pstest.jsl, for the Desktop...

s=socket();
s<<connect("localhost","1080");
s<<send(chartoblob("hello world!"));
s<<close();
quit();

I think this was required, but can't be sure after a couple of false starts...

Dialog from windows to allow PowerShell to open a port.

And eventually

Right-click the .PS1 script on the desktop and ->Run in PowerShell.

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