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@thesamesam
thesamesam / xz-backdoor.md
Last active June 11, 2024 15:27
xz-utils backdoor situation (CVE-2024-3094)

FAQ on the xz-utils backdoor (CVE-2024-3094)

This is a living document. Everything in this document is made in good faith of being accurate, but like I just said; we don't yet know everything about what's going on.

Background

On March 29th, 2024, a backdoor was discovered in xz-utils, a suite of software that

@fnky
fnky / ANSI.md
Last active June 13, 2024 22:42
ANSI Escape Codes

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

  • Ctrl-Key: ^[
  • Octal: \033
  • Unicode: \u001b
  • Hexadecimal: \x1B
  • Decimal: 27
@AveYo
AveYo / .. MediaCreationTool.bat ..md
Last active June 13, 2024 06:34
Universal MediaCreationTool wrapper for all MCT Windows 10 versions - MOVED TO github.com/AveYo/MediaCreationTool.bat
@maelvls
maelvls / How-to-automate-build-bottles-your-homebrew-tap.md
Last active May 12, 2024 15:10
Automate build workflow for Homebrew tap bottles (Linux and macOS)

How to automate the build of bottles on your Homebrew tap

Note on Oct 4, 2018: due to a change in Homebrew's brew test-bot behaviour, the user must set HOMEBREW_TRAVIS_CI and HOMEBREW_TRAVIS_SUDO appropriately (it was previously using Travis-CI-provided TRAVIS and TRAVIS_SUDO).

This tutorial is a follow-up to the discussion we had on davidchall/homebrew-hep#114. It relies on a fork of the test-bot provided by davidchall; you can get it with brew tap maelvalais/test-bot. First:

  1. the Github project must be of the form https://github.com//homebrew- with the following tree
@DanAtkinson
DanAtkinson / Visual Studio solution file headers
Last active June 12, 2024 12:46 — forked from JamesSkemp/Visual Studio solution file headers
Visual Studio solution file headers - 2003, 2005, 2008, 2010, 2012, 2013, 2015, 2017, 2019, and 2022
== Visual Studio .NET 2003 (DO NOT COPY THIS LINE) ==
Microsoft Visual Studio Solution File, Format Version 8.00
# Visual Studio .NET 2003
VisualStudioVersion = 7.1
== Visual Studio 2005 (DO NOT COPY THIS LINE) ==
Microsoft Visual Studio Solution File, Format Version 9.00
# Visual Studio 2005
VisualStudioVersion = 8.0
@Overv
Overv / HelloTriangle.cc
Created April 24, 2016 18:54
Vulkan hello triangle
#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include <algorithm>
#include <chrono>
#include <functional>
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
@graphitemaster
graphitemaster / WORKING_AROUND_OFFSETOF_LIMITATIONS.MD
Last active June 3, 2024 08:05
Working around offsetof limitations in C++

Working around offsetof limitations in C++:

There is sometimes a situation in which one needs to get the relative offset of a structure field, common examples of this include serialization frameworks which aid to serialize objects, vertex attributes for rendering (D3D, GL.), etc.

The most common technique for getting this information is through the offsetof macro defined in stddef.h. Unfortunately using the macro in C++ comes with a new set of restrictions that prevent some (subjectively valid) uses of it.

MEMPTR, esoteric register of the ZiLOG Z80 CPU.
by Boo-boo (first and draft English translation by Vladimir Kladov)
As it is known, after the instruction BIT n,(HL) execution, bits 3 and 5 of the flag register become containing values that is not documented in the official documentation at all. Actually these bits are copied from the bits 11 and 13 of the internal register pair of Z80 CPU, which is used for 16-bit operations, and in most cases to handle addresses. This is usual practice for processors having 8-bits data bus working with 16-bits data.
It is not known why and how these bits of the internal buffer register are copied to the flags register though. At least Sean Young in the "Undocumented Z80 Documented" refers to that phenomenon (http://www.myquest.nl/z80undocumented/) and a bit more info can be found in the Z80 description of another "nocash" project (http://www.work.de/nocash/zxdocs.htm) where such register pair is called as MEMPTR. Unfortunately until now attemts to crack the algorithm se
@aras-p
aras-p / preprocessor_fun.h
Last active June 12, 2024 00:35
Things to commit just before leaving your job
// Just before switching jobs:
// Add one of these.
// Preferably into the same commit where you do a large merge.
//
// This started as a tweet with a joke of "C++ pro-tip: #define private public",
// and then it quickly escalated into more and more evil suggestions.
// I've tried to capture interesting suggestions here.
//
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,
@yamaya
yamaya / xcode-clang-vers
Last active May 20, 2024 16:55
Xcode clang version record
# Xcode 4.3.3
Apple clang version 3.1 (tags/Apple/clang-318.0.61) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin11.4.0
Thread model: posix
# Xcode 4.3.2
Apple clang version 3.1 (tags/Apple/clang-318.0.58) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin11.4.0
Thread model: posix