lpereira

New                                    Old      
                                       
movsx  esi,BYTE PTR [r14+0x8]          movsx  esi,BYTE PTR [r13+0x8]      
mov    rdi,r12                         mov    rdi,rbp      
add    rbx,0x1                         add    r13,0x18      
call   0x412fd0 <strbuf_append_char>   call   0x413ed0 <strbuf_append_char>      
mov    rax,QWORD PTR [r15+rbx*8]       mov    eax,DWORD PTR [r13+0x0]      
jmp    QWORD PTR [rax*8+0x416440]      mov    rax,QWORD PTR [rax*8+0x4166a0]      
                                       jmp    rax

lpereira

#!/bin/sh

exec wrk -H 'Host: localhost' \
	-H 'Accept: text/plain,text/html;q=0.9,application/xhtml+xml;q=0.9,application/xml;q=0.8,*/*;q=0.7' \
	-H 'Connection: keep-alive' \
	-d 10 \
	-c 1000 \
	--timeout 16384 \
	-t 4 \
	http://127.0.0.1:8080/hello \

lpereira

3340  accept4(15,  <unfinished ...>
3341  <... nanosleep resumed> NULL)     = 0
3341  nanosleep({3, 0}, NULL)           = 0
3341  nanosleep({4, 0},  <unfinished ...>
3340  <... accept4 resumed> 0, NULL, SOCK_CLOEXEC|SOCK_NONBLOCK) = 16
3340  write(14, "\20\0\0\0", 4)         = 4
3345  <... epoll_wait resumed> {{EPOLLIN, {u32=0, u64=0}}}, 1024, -1) = 1
3340  accept4(15,  <unfinished ...>
3345  open("/etc/localtime", O_RDONLY|O_CLOEXEC) = 18
3345  fstat(18, {st_mode=S_IFREG|0644, st_size=2015, ...}) = 0

lpereira

#!/usr/bin/python

import requests

sources = [
  'http://pgl.yoyo.org/adservers/serverlist.php?hostformat=hosts&showintro=0&mimetype=plaintext',
  'http://hosts-file.net/.%5Cad_servers.txt',
  'https://adaway.org/hosts.txt',
  'http://winhelp2002.mvps.org/hosts.txt',
  'http://sysctl.org/cameleon/hosts',

lpereira

#!/usr/bin/python2
#
# Buildbot monitor
# Author: Leandro A. F. Pereira <[email protected]>
#
# Copyright (C) 2010 ProFUSION Embedded Systems
#

import urllib
import BeautifulSoup

lpereira

#include <chrono>
#include <cstdint>
#include <iostream>
#include <random>
#include <sstream>

using namespace std;
using namespace std::chrono;

const uint64_t P01 = 10;

lpereira

/*
 * Pinball Display Driver
 * Arudino version by Leandro Pereira
 *
 * Based on code by Daniel Quadros, available at
 * http://dqsoft.blogspot.com.br/2011/06/projeto-epoch-parte4-software-cont.html
 */

/*
 * Com o ethernet shield, alguns dos pinos usados aqui nao funcionam pq o shield

lpereira

namespace {

const char segment_pin[7] = {
  [0] = 0,
  [1] = 0,
  [2] = 0,
  [3] = 0,
  [4] = 0,
  [5] = 0,
  [6] = 0,

lpereira

#include <assert.h>
#include <sys/types.h>
#include <dirent.h>
#include "lwan-status.h"
#include "lwan-template.h"
#include "strbuf.h"

struct file_list {
    const char *path;

lpereira

                ┌───┬───┬───┬───┬───┬───┬───┐
                └─┐ │   │  ─┤   │   │   │  ─┤
                  │ │ │ ├─  │  ─┤ │ │ │ │ ┌─┘
                  └─┴───┴───┴───┴───┴─┴─┴─┘
       2013-06-01           LHC, Campinas - São Paulo

A Tosconf é uma desconferência anual organizada pelo Laboratório
Hacker de Campinas (LHC). Em sua primeira edição, em 2012, atraiu
desenvolvedores, pesquisadores de segurança da informação e
figuras míticas da computação.