ik5’s gists

## scan.rb
#!/usr/bin/env ruby

require 'socket'

def tcp_connect(address, port, timeout: 20)
  # making sure we are talking with IP
  connected = false
  addr = Socket.getaddrinfo(address, nil)
  sock_addr = Socket.pack_sockaddr_in(port, addr[0][3])
  Socket.new(Socket.const_get(addr[0][0]), Socket::SOCK_STREAM, 0).tap do |socket|

## fact_err
[32m2018-04-25T09:22:15[0m [[32mI[0m|[36mapp[0m|] Started POST "/api/v2/discovered_hosts/facts" for ::1 at 2018-04-25 09:22:15 +0300
[32m2018-04-25T09:22:15[0m [[32mI[0m|[36mapp[0m|13a50] Processing by Api::V2::DiscoveredHostsController#facts as JSON
[32m2018-04-25T09:22:15[0m [[32mI[0m|[36mapp[0m|13a50]   Parameters: {"facts"=>"[FILTERED]", "apiv"=>"v2", "discovered_host"=>{"facts"=>"[FILTERED]"}}
[32m2018-04-25T09:22:15[0m [[32mI[0m|[36mapp[0m|13a50] Current user: foreman_admin (administrator)
[32m2018-04-25T09:22:15[0m [D|[36mapp[0m|13a50] Setting current user thread-local variable to foreman_admin
[32m2018-04-25T09:22:15[0m [[32mI[0m|[36maud[0m|13a50] create event for Nic::Managed with id 44
[32m2018-04-25T09:22:15[0m [D|[36mapp[0m|13a50] Setting current user thread-local variable to nil
[32m2018-04-25T09:22:15[0m [[33mW[0m|[36mapp[0m|13a50] Host discovery failed, facts: {"physicalprocessorcount"=>"3", "memorysize_mb"=>"900", "blockdevice.sda_size"=>"1234567890"

## simple_bench.rb
require 'benchmark'

N = 1_000_000
REGEX = /^abc/
STR = 'abc are letters'.freeze

Benchmark.bm(13) do |x|
  x.report('start_with?') do
    N.times do
      STR.start_with?('abc')

## regexp_vs_start_with.rb
require 'benchmark'
require 'securerandom'

N = 1_000_000
REGEX = /^(abc|Abc|ABC)/

def gen_randstr(len = 24)
  SecureRandom.base64(len)
end

## documented_code.c
/* ... */
const char * get_message(void * payload) {
  payload_t *data  = payload;

  if (!data->len > MIN_PAYLOAD_LEN) {
    return null;
  }

  return sprintf("%s%s", data->name, data->content);
}

## func.sh
#!/bin/sh

func() {
  for p in $(echo /tmp/*); do
    f=$(basename -a "$path")
    echo $f
  done
}

## sanitize.rb
# help to avoid path traversal, and execution of anything on a machine
# due to file name
def escape_file_name(name)
  # regex is a s follows:
  # if it's the begining of the string, or there is no escape char
  # for the following chars,
  # add an escape for that char
  name.gsub(/(^|[^\\])([\s\!\'\"#$&\^\*\`\/\(\)\[\]\?\{\}\|\~])/) do |match|
    "\\#{match[1]}"
  end

## pause_resume.go
package main

import (
	"fmt"
	"runtime"
	"time"
)

// Thread stages
const (

## scryp.go
package main

import (
	"crypto/rand"
	"fmt"

	"golang.org/x/crypto/scrypt"
)

func main() {

## main.go
package main

import "C"
import (
	"fmt"
	"plugin"
)

func main() {
	p, err := plugin.Open("./plugins.so")