2015 New Intelligent key

Magic Key CISA 3 5 3 - Self-impressioning lock pick for CISA

Trapping signals in Docker containers Have you ever stopped a Docker container?

As an example, let’s run the following application (program.js) inside a container and examine signal handlers.

'use strict';

var http = require('http');

var server = http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
}).listen(3000, '0.0.0.0');

console.log('server started');

var signals = {
  'SIGINT': 2,
  'SIGTERM': 15
};

function shutdown(signal, value) {
  server.close(function () {
    console.log('server stopped by ' + signal);
    process.exit(128 + value);
  });
}

Object.keys(signals).forEach(function (signal) {
  process.on(signal, function () {
    shutdown(signal, signals[signal]);
  });
});

Here we create an HTTP-server that listens on port 3000 and setup two signal handlers for SIGINT and SIGTERM. When handled, the following message will be printed to stdout: `server stopped by [SIGNAL]`.

https://medium.com/@gchudnov/trapping-signals-in-docker-containers-7a57fdda7d86#.xrr5p3g5i 

forces to decode the most probable coded sequence that succeeds the verification of the outer code

/*

RFSniffer

Usage: ./RFSniffer []

[] = optional

Hacked from http://code.google.com/p/rc-switch/

by @justy to provide a handy RF code sniffer

*/

#include "../rc-switch/RCSwitch.h"

#include <stdlib.h>

#include <stdio.h>

RCSwitch mySwitch;

int main(int argc, char *argv[]) {

// This pin is not the first pin on the RPi GPIO header!

// Consult https://projects.drogon.net/raspberry-pi/wiringpi/pins/

// for more information.

int PIN = 2;

if(wiringPiSetup() == -1) {

printf("wiringPiSetup failed, exiting...");

return 0;

}

int pulseLength = 0;

if (argv[1] != NULL) pulseLength = atoi(argv[1]);

mySwitch = RCSwitch();

if (pulseLength != 0) mySwitch.setPulseLength(pulseLength);

mySwitch.enableReceive(PIN); // Receiver on interrupt 0 => that is pin #2

while(1) {

if (mySwitch.available()) {

int value = mySwitch.getReceivedValue();

if (value == 0) {

printf("Unknown encoding\n");

} else {

printf("Received %i\n", mySwitch.getReceivedValue() );

}

mySwitch.resetAvailable();

}

}

exit(0);

}

https://github.com/ninjablocks/433Utils/blob/master/RPi_utils/RFSniffer.cpp