BobBurns

/* compile: 
 * gcc -fpic -pie -nostdlib sockpay.c -o sockpay
 * use with https://github.com/BobBurns/hijack-process
 * create a listener with nc -l -p 4444
 */


long _write(long fd, char *buf, unsigned long len)
{
        long ret;

BobBurns

package main

import (
        "fmt"
        "time"
)

func print_hello(str string) {
        fmt.Println("hello", str)
}

BobBurns

#!/usr/bin/php

<?php

# see https://gist.github.com/BobBurns/bc16d6e45fc01e61138f026c18187b00
# for a more efficient script using the aws php sdk

# wrapper script that can be used for nagios checks with aws ec2 instance
#
# Must have Instance Id $dim_value

BobBurns

#!/usr/bin/php

<?php

# php script to get aws cloudwatch data and format output
# for nagios check
# can be expanded to get Metrics from all AWS namespaces

# requires aws cli configured and aws sdk for php
# http://docs.aws.amazon.com/cli/latest/userguide/cli-chap-getting-started.html

BobBurns

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define STREAM (256 * 8)

/* short program to understand linear feed shift register
 * and its use in stream ciphers.
 *
 * modified to solve problem 2.11 in Understanding Cryptography by C. Paar

BobBurns

#include <stdio.h>
#include <stdlib.h>

/* quick program to solve affine cipher with key a, b mod 26 */
/* usage: ./aff_c <key a> <key b> <optional e=encrypt> 
 *        cipher-text from stdin or pipe
 */


int

BobBurns

#include <stdio.h>

/* Rijndael Field S-box transformation
 * part of the AES encryption algorythm or Rijndal's block cipher.
 *
 * code expanded on blog @ www.samiam/galois.html
 */


/* global vars */

BobBurns

#include <stdio.h>

/* program to demonstrate how to find multiplicative inverse in Rijndal's Galois Field
 * part of the AES encryption algorithm or Rijndal's block cipher.
 *
 * code expanded on blog @ www.samiam/galois.html
 */


/* global vars */

BobBurns

@ program: systick_tst.s
@ programmer: reb 
@ device: stm32L152c discovery eval board
@ description: blink led with systick count down
@               uses systick interrupt routine
@    
@ how to compile and flash:
@  arm-none-eabi-as -mcpu=cortex-m3 systick_tst.s -o systick_tst.o
@  arm-none-eabi-ld -v -T stm32.ld -nostartfiles -o systick_tst.elf systick_tst.o 
@  arm-none-eabi-objcopy -O binary systick_tst.elf systick_tst.bin

BobBurns

@ cylon eyes for stm32L discovery
@       uses lcd software driver 1/4 duty 1/3 bias
@ how to compile and flash:
@  arm-none-eabi-as -mcpu=cortex-m3 cylon_eyes.s -o cylon_eyes.o
@  arm-none-eabi-ld -v -T stm32.ld -nostartfiles -o cylon_eyes.elf cylon_eyes.o 
@  arm-none-eabi-objcopy -O binary cylon_eyes.elf cylon_eyes.bin
@ then from st-link (https://github.com/texane/stlink)
@  ./st-flash write ../first_arm/cylon_eyes.bin 0x08000000
  
        .thumb