Bernardo de Araujo bernardoamc

How to Push to Someone Else's Pull Request

Let's say contributor has submitted a pull request to your (author) project (repo). They have made changes on their branch feature and have proposed to merge this into origin/master, where

origin -> https://github.com/author/repo.git

Now say you would like to make commits to their PR and push those changes. First, add their fork as a remote called

This is explaining stuff relevant to AOC 2021 day 6

How is a matrix used to count fish?

First lets do fibonacci numbers because it's smaller (2x2 matrix instead of 9x9) and it's familiar ground.

So you can implement fibs like this:

def fib(n):

XML Vulnerabilities

XML processing modules may be not secure against maliciously constructed data. An attacker could abuse XML features to carry out denial of service attacks, access logical files, generate network connections to other machines, or circumvent firewalls.

The penetration tester running XML tests against application will have to determine which XML parser is in use, and then to what kinds of below listed attacks that parser will be vulnerable.

One-liners

Reverse every line:

Input file:

$ cat foo
qwe
123

bar

HOWTO: Configure Phoenix with Preact & Polaris

Create a Phoenix app

# create the app
mix phx.new my_app --no-ecto --module MyApp --app my_app

# go to my_app

	#include <stdio.h>
	#include <stdlib.h>
	#include <unistd.h>

	// Build:
	// gcc -gdwarf-4 -fcf-protection=none -no-pie -fno-stack-protector basicbof.c -o basicbof

	// To give us a pop rdi gadget
	void dosomething() {
	int x = 0xc35f;

	main {
	width: 100%;
	padding: 15px;
	}

	.catalogue-item {
	border: 1px solid #e5e5e5;
	color: #555;
	display: block;
	padding: 2rem 0;

	# Echo server program
	import socket

	HOST = '' # Symbolic name meaning all available interfaces
	PORT = 50007 # Arbitrary non-privileged port
	s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	s.bind((HOST, PORT))
	s.listen(1)

	conn, addr = s.accept()

	class BlogLink
	def validate(attributes)
	# Specific BlogLink validation, we could just use ActiveModel::Validations too
	end

	def to_path
	'/blogs'
	End

	def to_s

	# You will need fswatch installed (available in homebrew and friends)
	# The command below will run tests and wait until fswatch writes something.
	# The --stale flag will only run stale entries, it requires Elixir v1.3.
	fswatch lib/ test/ \| MIX_ENV=test mix do test --stale, run --no-halt -e "IO.gets(:stdio, ''); IO.puts 'Restarting...'; :init.restart()"