sktt / xxd

Last active March 6, 2019 14:10

	jnes:src/ (9c8138f7b0✗) $ xxd -s0x1fafde147e00 -g1 -e -len 64 /proc/`pidof d8`/mem
	de147e00: 48 8d 1d f9 ff ff ff 48 3b d9 74 18 48 ba 00 00 H......H;.t.H...
	de147e10: 00 00 36 00 00 00 49 ba 40 22 c4 b5 31 7f 00 00 ..6...I.@"..1...
	de147e20: 41 ff d2 cc 48 8b 59 e0 f6 43 0f 01 0f 85 ae 31 A...H.Y..C.....1
	de147e30: f4 ff 55 48 89 e5 56 57 48 83 ec 30 48 89 75 e0 ..UH..VWH..0H.u.

sktt / gist:cee0eb0a15f528386e2c3ef8b9a47096

Created March 6, 2019 14:05

	Instructions (size = 868)
	0x1fafde147e00 0 cc int3l
	0x1fafde147e01 1 8d1df9ffffff leal rbx,[rip+0xfffffff9]
	0x1fafde147e07 7 483bd9 REX.W cmpq rbx,rcx
	0x1fafde147e0a a 7418 jz 0x1fafde147e24 <+0x24>
	0x1fafde147e0c c 48ba0000000036000000 REX.W movq rdx,0x3600000000
	0x1fafde147e16 16 cc int3l
	0x1fafde147e17 17 ba4022c4b5 movl rdx,0xb5c42240 ;; off heap target
	0x1fafde147e1c 1c 317f00 xorl [rdi+0x0],rdi
	0x1fafde147e1f 1f 0041ff addb [rcx-0x1],al

sktt / gdblog

Created March 6, 2019 14:00

	(gdb) b *0x1fafde147e00
	Breakpoint 2 at 0x1fafde147e00
	(gdb) cont
	Continuing.

	Thread 1 "d8" hit Breakpoint 2, 0x00001fafde147e00 in LazyCompile:*myfunc test.js:144 ()
	=> 0x00001fafde147e00 <LazyCompile:myfunc test.js:144+0>: 48 8d 1d f9 ff ff ff lea -0x7(%rip),%rbx # 0x1fafde147e00 <LazyCompile:myfunc test.js:144>
	(gdb) i r rbx rcx
	rbx 0x5 5
	rcx 0x1fafde147e00 34840205622784

sktt / android.sh

Last active September 13, 2018 13:21

all the stuff without any android-studio!

	# make sure to not have conflicts..
	sudo apt remove android-sdk{,-platform-tools,-build-tools} adb
	sudo apt autoremove

	mkdir ~/GREEN_LAB
	cd ~/GREEN_LAB

	# https://developer.android.com/studio/#command-tools
	wget https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip -O android-sdk-tools.zip

sktt / gist:1463b38688037b8ac49ad35c68a4dd29

Last active May 19, 2018 17:18

	sudo apt-get update
	sudo apt-get install build-essential curl libz3-dev z3 libboost-dev libcapstone-dev libpython-dev cmake python-z3
	curl -L http://software.intel.com/sites/landingpage/pintool/downloads/pin-2.14-71313-gcc.4.4.7-linux.tar.gz\| tar xzf -
	cd pin-2.14-71313-gcc.4.4.7-linux/source/tools/
	curl -L https://github.com/JonathanSalwan/Triton/archive/v0.4.tar.gz \| tar xzf -
	cd Triton-0.4/
	mkdir build
	cd build
	cmake -DPINTOOL=on -DKERNEL4=on ..
	make -j4

sktt / list.c

Created May 11, 2018 16:27

1337 lists... kernel style

	#include <stdio.h>

	/* 1337 linked list, kernel style */
	#define MEMBER_OFFSET(type, member) \
	(unsigned long)(&(((type *)0)->member))
	#define LIST_ENTRY(ptr, type, member) \
	((type )(((char )(ptr)) - MEMBER_OFFSET(type, member)))

	#define LIST_INIT(list) \
	(list).next = &(list);\

sktt / websocket.js

Last active October 12, 2017 22:25

Skeleton code for setting up a websocket server, with a route for piping stdin to the websocket. So you could for instance do `ping google.com | node websocket.js` and maybe plot the results in the browser.... :D

	const URL = require('url')
	const Rx = require('rxjs/Rx')

	const WebSocketServer = require('ws').Server

	/** pipe stdin out on websocket */
	function pipe (conn) {
	process.stdin.setEncoding('utf8')
	return Rx.Observable.create(obs => {
	process.stdin.on('data', obs.next.bind(obs))

sktt / newmac

Last active September 4, 2017 01:12

Generates a new mac address. You know why it's useful :)

	#!/bin/sh
	set -e
	IF=$1

	if [ -z "$IF" ] ; then
	echo "Usage: $0 <interface>"
	exit 1
	fi

	ifconfig $IF > /dev/null # stop execution if the interface doesn't exist

sktt / 130717 redux_rxjs.md

Last active September 30, 2017 18:40

Simple state mgmt using rxjs for redux fans

date	title	descr
Thu 13 Jul 2017 10:41:19 AM CEST	Roll your own redux	Simple state mgmt using rxjs for redux fans

Roll your own redux

using rxjs

sktt / keystone_hacks.js

Last active September 4, 2017 01:17

How to add support for pre updateItem hook for keystone.List.

	// Naturally this has to be done before creating List instances!!

	// monkey patching List constructor to add hooks support
	(function () {
	var grappling = require('grappling-hook');
	var List = keystone.List;

	keystone.List = function (name, options) {
	List.apply(this, arguments);

Johannes Wikner sktt

Roll your own redux