Wesley Viana wviana

Write-up - CTF Zup 2022 - Alexandre Fidélis Vieira Bitencourt

se FOR fácil eu MATO - v2

Este desafio era sobre a utilização de um buffer overflow para sobrepor o valor de uma variável inteira. O código fonte da página era o seguinte:

Caso o atacante conseguisse sobrepor o valor da variável inteira que era iniciado com zero a flag seria revelada.

Linting your code, the vanilla way

You may want a linter plugin to lint your code in Vim but you probably don't need it. At least try the built-in way before jumping on the plugin bandwagon.

Defining `makeprg`

autocmd FileType <filetype> setlocal makeprg=<external command>

This autocommand tells Vim to use <external command> when invoking :make % in a <filetype> buffer. You can add as many similar lines as needed for other languages.

"JUST BECAUSE YOU'RE USING SWIFT DOESN'T MEAN YOUR QUESTION IS ABOUT SWIFT"

How To Get Answers

Ask your question and then be patient. Tell us what you want to happen, what is actually happening, and include any error messages you find:

Provide a scenario. "I am trying to do X, I do so by calling APIs W and Y, but Z happens instead. I see the following error messages:..."
Focus on the goal. Ask about what you're trying to achieve (the big story) rather than the specific technical detail that you believe is holding you back.
Don't solicit help. Don't say, "Does anyone here know about (for example) Protocol Extensions". Just ask your question.
Do your homework. Search the web before asking in-channel.
Be courteous Don't just paste Stack Overflow questions in-channel.
Remember the topic Refer questions about third party libraries to their developers.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

THIS GIST WAS MOVED TO TERMSTANDARD/COLORS REPOSITORY.

PLEASE ASK YOUR QUESTIONS OR ADD ANY SUGGESTIONS AS A REPOSITORY ISSUES OR PULL REQUESTS INSTEAD!

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	#!/usr/bin/env python
	# -- coding: utf-8 --
	#
	# This is how I used it:
	# $ cat ~/.bash_history \| python bash-to-zsh-hist.py >> ~/.zsh_history

	import sys
	import time

	▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄
	██ ██
	█▌ - FUN ON THE TERMINAL - █▌
	█▌ PUBLIC TELNET ASCII ART, GAMES, ETC (ALL OSes) █▌
	█ ▐▌
	█ ▐▌
	█ Connect to other servers through telnet to view their animated ASCII art, ▐▌
	█ games, etc they offer the public. If no port is specified than it is the ▐▌
	█ default port 23; you don't need to specify it. ▐▌
	█ ▐▌

	#
	# UPDATE for 10.10.4+: please consider this patch obsolete, as apple provides a tool called "trimforce" to enable trim support for 3rd party SSDs
	# just run "sudo trimforce enable" to activate the trim support from now on!
	#
	# Original version by Grant Parnell is offline (http://digitaldj.net/2011/07/21/trim-enabler-for-lion/)
	# Update July 2014: no longer offline, see https://digitaldj.net/blog/2011/11/17/trim-enabler-for-os-x-lion-mountain-lion-mavericks/
	#
	# Looks for "Apple" string in HD kext, changes it to a wildcard match for anything
	#
	# Alternative to http://www.groths.org/trim-enabler-3-0-released/