windytan

#!/bin/sh

# Decode the helicopter position signal from youtube videos!
# It makes a KML file. You can open it in Google Earth or many other GIS programs.
# Requires sox, perl, and minimodem, and optionally yt-dlp / ffmpeg

# https://www.windytan.com/2014/02/mystery-signal-from-helicopter.html

# Remove this line
echo "Don't just run any random script you find online! Read what it does first!" && exit 1

windytan

use warnings;

my $width = 1000;
my $height = 500;

my $n_pts = 1000;
my $wavelength = 9;

print '<svg xmlns="http://www.w3.org/2000/svg" version="1.1" '.
      'width="'.$width.'" height="'.$height.'">'."\n";

windytan

#!/usr/bin/perl
#
# Markov-tavutin
#
# (c) Oona Räisänen
# MIT license
#

use strict;
use warnings;

windytan

#!/usr/bin/perl
# windytan 2017, public domain
use warnings;
use strict;

my $img_width      = 1200;
my $img_height     = 900;
my $yscale         = 0.6;
my $xscale         = 0.13;
my $rowheight      = 5;

windytan

  if (/^\.ninja (.+)/) {
    $irivi = lc($1);
    $irivi =~ tr/ÅÄÖ/åäö/;
    $irivi =~ tr/åäöéèü/aaoeeu/;
    $irivi =~ s/[^a-z\- ]//g;
    $irivi =~ s/\s+$//;
    $irivi =~ s/\s\s/ /g;
    %ninjanames = qw( a KA b ZU  c MI  d TE e KU f LU g JI h RI i KI j ZU
                      k ME l TA  m RIN n TO o MO p NO q KE r SHI s ARI
                      t CHI u DO v RU w MEI x NA y FU z ZI );

windytan

#!/usr/bin/perl
# windytan's pea whistle encoder
# http://www.windytan.com/2015/10/pea-whistle-steganography.html
# (c) 2015 Oona Räisänen
# ISC license

use warnings;
use strict;

my $data          = $ARGV[0] // "OHAI!";

windytan

Keybase proof

I hereby claim:

• I am windytan on github.
• I am oona (https://keybase.io/oona) on keybase.
• I have a public key whose fingerprint is 5E58 B00C B427 8814 EE00 05ED 57BE DFA9 3BBB EDE8

To claim this, I am signing this object:

windytan

#include <openssl/sha.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

int main() {
  const char target[SHA_DIGEST_LENGTH] = {
    0x69, 0xaf, 0x88, 0x1e, 0xca, 0x98, 0xb7, 0x04, 0x2f, 0x18,
    0xe9, 0x75, 0xe0, 0x0f, 0x9d, 0x49, 0xd5, 0xd5, 0xee, 0x64
  };

windytan

@namespace url(http://www.w3.org/1999/xhtml);

@-moz-document
 domain('cpan.org')
{
   html, body, tbody, tr, td, div { background-color: #232323 !important; color: #ccc !important }
   pre {
      display: block !important ; 
      background-color: #333333 !important ;
      border: #777777 solid 0.1em !important ;

windytan

use warnings;

$fs = 48000;
$pi = 3.141592653589793;

open U, "|sox -t .raw -e sig -b 16 -c 1 -r $fs - numbers.wav sinc 300-4300";

dtmf ("12345567899000100100");

close U;