darkk

pid_t waitpid_core_once(pid_t pid, int *status, int options)
{
        int status_holder;
        pid_t retval;
        if (!status)
                status = &status_holder;
        retval = waitpid(pid, status, options);
        if (retval > 0 && WIFSIGNALED(*status) && WCOREDUMP(*status)) {
                struct rlimit core;
                memset(&core, 0xFF, sizeof(core));

darkk

digraph routing {
    subgraph interfaces {
        node [shape = folder];
        host_if_inet;
        host_if_lxc;
        lxc_if;
        lxc_if;
    }

    lxc_default_route [label = "default route"];

darkk

#!/usr/bin/env python
# @see http://opengarden.com/senior-software-engineer.php
# @see http://xkcd.com/287/

from itertools import combinations

l = [
 18897109,
 12828837,
  9461105,

darkk

#!/usr/bin/env python

import sys
import re
import os
import socket as s
import time
import struct

# Per packet rx_queue & tx_queue (SO_RCVBUF, SO_SNDBUF) utilisation according to /proc/net/raw{,6}

darkk

#!/bin/sh

exec 2>/dev/null 1>/dev/null
export PATH=$PATH:%%PREFIX%%/bin

logdir=/var/db/mongodb
suffix=.bz2
prefix=mongod.log.
selflog=${prefix}rotate.`date +%Y-%m-%d`
days_to_keep=14

darkk

# scapy script to trigger bug in mongod / mongos: https://jira.mongodb.org/browse/SERVER-9109
#
# Do $(iptables -I INPUT -p tcp --dport 12345 -j DROP) at vm host before flooding.

vm = '1.2.3.4' # src
victim = '9.8.7.6' # dst
def f():
    syn = IP(src=vm, dst=victim)/TCP(sport=12345, dport=27017, flags="S")
    sa = sr1(syn)
    ack = IP(src=vm, dst=victim)/TCP(sport=12345, dport=27017, seq=sa.ack, ack=sa.seq+1, flags="A")

darkk

#!/usr/bin/env python2

from Crypto.Cipher import DES, DES3
import struct

def run(des_k1):
    shown_to_user = []
    print "==> Shown to user"
    for i in xrange(5):
        enc_i = struct.unpack('>Q', des_k1.encrypt(struct.pack('>Q', i)))[0]

darkk

darkk

SHELL=/bin/bash
OUT=echosrv.x86_64 echosrv.mips
CFLAGS=-Wall -Wextra -Wpedantic -O2

.PHONY: all clean upload
all: $(OUT)
clean:
	rm -f $(OUT)

echosrv.x86_64: echosrv.c

darkk

-- uses PowerDNS 4.x, does not work with 3.x

function getnum ( domain )
    domain = domain:lower()
    ttl, count = string.match(domain, '^(%d+)%.(%d+)%.rnd%.darkk%.net%.ru%.$')
    if ttl ~= nil then
        return tonumber(ttl), tonumber(count)
    end
    count = string.match(domain, '^(%d+)%.rnd%.darkk%.net%.ru%.$')
    if count ~= nil then