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Nicolás Alvarez nicolas17

  • Buenos Aires, Argentina
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nicolas17 / README.md
Last active April 15, 2021 22:04
Verify your git-bisect run script

When using git bisect run ./test.sh it's not uncommon to get the condition in test.sh wrong. This can cause a lot of wasted time as you only notice the mistake hours later when bisect finishes and points at the wrong commit.

This Python script runs the test script against the commits you already marked as good or bad in the bisect session (either with 'git bisect good/bad' or as part of the 'git bisect start' command) and ensures your test script returns the correct status code.

@nicolas17
nicolas17 / CVE-2021-3449.md
Last active March 29, 2021 18:14
Exploit for CVE-2021-3449 (OpenSSL null ptr deref)

Download openssl-1.1.1j (1.1.1k probably works too but I didn't test).

Apply this patch (or manually edit the one line):

diff -ur openssl-1.1.1j/ssl/statem/extensions_clnt.c openssl-1.1.1j-patched/ssl/statem/extensions_clnt.c
--- openssl-1.1.1j/ssl/statem/extensions_clnt.c 2021-02-16 12:24:01.000000000 -0300
+++ openssl-1.1.1j-patched/ssl/statem/extensions_clnt.c 2021-03-25 14:56:40.072257668 -0300
@@ -272,7 +272,7 @@
         return EXT_RETURN_NOT_SENT;
 
@nicolas17
nicolas17 / boostpp_math.c
Created November 4, 2020 18:05
Cursed boost.pp math
// SPDX-FileCopyrightText: 2020 Nicolás Alvarez <[email protected]>
//
// SPDX-License-Identifier: MIT
#include <boost/preprocessor.hpp>
// Utilities to convert from numbers (bytes) or words (highbyte,lowbyte pairs)
// into nibbles.
// a -> (a1,a0)
@nicolas17
nicolas17 / moo.cpp
Created September 27, 2020 07:35
Microsoft's moo.cxx gdiplus test
#include <stdio.h>
#include <math.h>
#include <windows.h>
#include <objbase.h>
#include <gdiplus.h>
// moo.cxx ran through the preprocessor, and replacing "GetDC(1-1)" with "dc"
// (apparently on newer Windows versions you're not allowed to use GetDC(NULL)
// to draw to the screen directly)
@nicolas17
nicolas17 / reduced.ll
Last active July 22, 2020 21:24
opt reduced.ll --ipsccp -S
; ModuleID = 'reduced.ll'
source_filename = "reduced.ll"
define void @_mesa_test_texobj_completeness(i32* %0) {
%2 = icmp uge i64 undef, undef
%3 = icmp slt i64 undef, undef
%4 = and i1 %3, %2
br i1 undef, label %exit, label %a
@nicolas17
nicolas17 / Vagrantfile
Created June 5, 2020 00:29
Vagrantfile for KDE monitoring
# -*- mode: ruby -*-
# vi: set ft=ruby :
Vagrant.configure("2") do |config|
if Vagrant.has_plugin?("vagrant-cachier")
config.cache.scope = :machine
end
config.vm.define "random" do |machine|
class AsyncTdlib:
def __init__(self, loop=None):
self.pending_futures = {}
self.update_handler = lambda r: None
self.receiver_thread = None
if loop is None:
self.loop = asyncio.get_event_loop()
else:
self.loop = loop
self.last_req_id = 0
### Keybase proof
I hereby claim:
* I am nicolas17 on github.
* I am nicolas17 (https://keybase.io/nicolas17) on keybase.
* I have a public key ASC-AhatwxHjh8hgpS2VNJDItdfPRfhvR1xcN-3CQNBFXwo
To claim this, I am signing this object:
@nicolas17
nicolas17 / README.md
Created March 27, 2020 19:18
Casos nuevos de COVID-19 en CABA y Provincia de Buenos Aires
  • Casos nuevos por día.
  • Datos tomados a mano de los informes diarios en PDF. Puede haber errores de tipeo etc.
  • Los -unknown indican que el PDF no distingue de qué provincia son, o dice "10 casos de estas 4 provincias" pero no cuántos de cada una.
@nicolas17
nicolas17 / ipsw_keys.py
Last active August 17, 2023 03:02 — forked from MCJack123/ipsw_keys.py
Extract iOS firmware keys using on-device AES engine - MOVED TO https://github.com/nicolas17/ipsw_keys
#!/usr/bin/env python
from sys import argv, stdout
from os import system, remove, path
from urlparse import urlparse
import re
import dfu
import ssl
import math
import json
import getopt