Andrew Diller dillera

working on code

dillera / gist:7192d884929aac1b9905ab478342dc28

Last active September 15, 2024 13:00

Apple II Disk Type Detection

	Apple 2 disk help


	1. Format and Size Detection:
	• is_woz_format: Checks if the disk image starts with the WOZ signature.
	• get_image_size_kb: Retrieves the size of the disk image in kilobytes.
	2. Filesystem Detection:
	• detect_filesystem: Utilizes the existing autodetection to identify the filesystem and sector order.
	3. Recommendation Logic:
	• recommend_mounting: Implements the mounting recommendation rules based on image format, size, and filesystem.

dillera / openfw.ps1

Created August 10, 2024 13:38

wsl2 Firewall Open Example

	# Start SSH Service.
	wsl sudo service ssh start

	# WSL2 network port forwarding script v1
	# for enable script, 'Set-ExecutionPolicy -ExecutionPolicy Bypass -Scope CurrentUser' in Powershell,
	# for delete exist rules and ports use 'delete' as parameter, for show ports use 'list' as parameter.
	# written by Daehyuk Ahn, Aug-1-2020

	# Display all portproxy information
	If ($Args[0] -eq "list") {

dillera / convert_and_save_apple2_hrg.py

Created July 2, 2024 01:52

Convert Image to HRG

	import sys
	from PIL import Image
	import struct

	# Define the Apple II HRG palette
	palette = [
	(0, 0, 0), # Black
	(114, 38, 64), # Deep Red
	(64, 51, 127), # Dark Blue
	(255, 0, 255), # Purple

dillera / setup-systemd.bash

Last active June 12, 2024 02:53

BASH commands to save a systemd service file to start the udp_firewall.js script on boot.


	cat <<'EOF' > /etc/systemd/system/udp-firewall.service
	[Unit]
	Description=UDP Firewall Service
	After=network.target

	[Service]
	ExecStart=/usr/bin/node /usr/local/bin/udp_firewall.js
	Restart=always
	User=root

dillera / udp_firewall.js

Created June 12, 2024 02:00

BASH command to save a node script that will listen on port 6677 for IP address from a SubText BBS


	cat <<'EOF' > /usr/local/bin/udp_firewall.js
	const dgram = require('dgram');
	const { exec } = require('child_process');

	const PORT = 6677;

	const server = dgram.createSocket('udp4');

	server.on('listening', () => {

dillera / set_iptable_rules.bash

Created June 12, 2024 01:59

A set of commands to setup iptables for the firewall host

	cat <<EOF \| sudo bash
	# Flush existing rules and set default policies
	iptables -F
	iptables -t nat -F
	iptables -t mangle -F
	iptables -t raw -F
	iptables -X

	iptables -P INPUT ACCEPT
	iptables -P FORWARD ACCEPT

dillera / udp_capture.py

Created June 7, 2024 14:41

Small Python script to capture UDP traffic and display the payload

	import pyshark
	import logging

	# Set up logging
	logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')

	def packet_handler(pkt):
	try:
	if 'UDP' in pkt:
	src_addr = pkt.ip.src

dillera / index.html

Created May 22, 2024 02:00

FujiNet Flasher Auto Manifest

	cat <<'EOF' > index.html
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>ESP Web Tools with Dynamic Manifest</title>
	<style>
	#spinner {
	display: none;

dillera / HTTP.cpp

Created May 11, 2024 01:06

refactored http.cpp

	NetworkProtocolHTTP::~NetworkProtocolHTTP()
	{
	for (int i = 0; i < collect_headers_count; i++)
	if (collect_headers[i] != nullptr)
	{
	free(collect_headers[i]);
	collect_headers[i] = nullptr;
	}
	}

dillera / create-startup.bash

Created November 22, 2023 20:46

A bash script that will create a systemd startup file using local env vars for security

	#!/bin/bash
	#
	# create flask startup scripts for flask apps.
	# a typical path: /home/ubuntu/yourProject
	# with a venv at: /home/ubuntu/yourProject/venv
	#
	# adiller oct 2023
	#
	#################################################################
	# Function to display usage notes