marcan

/*
 * m1racle-poc: a basic proof of concept for the M1RACLES vulnerability in the Apple M1.
 * 
 * This program allows you to read and write the state of the s3_5_c15_c10_1 CPU register.
 *
 * Please visit m1racles.com for more information.
 *
 * Licensed under the MIT license.
 */

leric

package main

import (
	"bufio"
	"bytes"
	"crypto/md5"
	"crypto/rand"
	"encoding/binary"
	"encoding/hex"
	"flag"

alexander-hanel

• Dissecting Go Binaries
• Go: Overview of the Compiler
• Go compiler internals: adding a new statement to Go - Part 1
• Go compiler internals: adding a new statement to Go - Part 2
• Reversing GO binaries like a pro
• How a Go Program Compiles down to Machine Code
• Analyzing Golang Executables
• Go Reverse Engineering Tool Kit
• go-internals book
• [Reconstructing Program Semantics from Go Binaries](http://home.in.tum.de/

shakna-israel

Let's Destroy C

I have a pet project I work on, every now and then. CNoEvil.

The concept is simple enough.

What if, for a moment, we forgot all the rules we know. That we ignore every good idea, and accept all the terrible ones. That nothing is off limits. Can we turn C into a new language? Can we do what Lisp and Forth let the over-eager programmer do, but in C?

---

abelcallejo

Creating bootable Linux USB using Mac

CentOS, Ubuntu, Slackware, etc. Whatever Linux-based OS it is, you can create a bootable USB for it by using a Mac.

1. Prepare the .iso file

Download it, copy it, whatever it takes to prepare that Linux-based OS .iso file

2. Convert the .iso file into a .img.dmg

garyachy

#!/bin/bash

PATH=$PATH:./build-root/build-vpp-native/vpp/bin/

if [ $USER != "root" ] ; then
    echo "Restarting script with sudo..."
    sudo $0 ${*}
    exit
fi

staaldraad

# Gawk version
# Remote
grep -v "rem_address" /proc/net/tcp  | awk  '{x=strtonum("0x"substr($3,index($3,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($3,i,2))}{print x":"strtonum("0x"substr($3,index($3,":")+1,4))}'

# Local
grep -v "rem_address" /proc/net/tcp | awk  '{x=strtonum("0x"substr($2,index($2,":")-2,2)); for (i=5; i>0; i-=2) x = x"."strtonum("0x"substr($2,i,2))}{print x":"strtonum("0x"substr($2,index($2,":")+1,4))}'

# No Gawk
# Local
grep -v "rem_address" /proc/net/tcp  | awk 'function hextodec(str,ret,n,i,k,c){

thedreamwork

#!/usr/bin/python
 
# usage python unwxapkg.py filename
 
import sys,os
import struct
 
class WxapkgFile:
  nameLen = 0
  name = ""

evalphobia

tl;dr

• JSON is faster for small size data
  • map (key size < 50 and Unmarshalling intensive workload)
  • single struct
• gob is faster for big size data
  • map (key size > 50 or Marshalling intensive workload)
  • slice

(old) about

wych42

指标参考下面几个内容整理。

• basic-perfomance
• tsar https://github.com/alibaba/tsar/blob/master/info.md#io
• netflixs http://techblog.netflix.com/2015/04/introducing-vector-netflixs-on-host.html
• openfalcon http://book.open-falcon.com/zh/faq/linux-metrics.html

含义参考了: 对应的 manpage, kernel doc。

系统监控