josephok

// Write a program that shows that when the disposition of a pending signal is
// changed to be SIG_IGN , the program never sees (catches) the signal.

#include <signal.h>
#include <stdio.h>
#include <unistd.h>

void printSigset(FILE *of, const char *prefix, const sigset_t *sigset)
{
    int sig, cnt;

josephok

#include <stdio.h>

void quicksort(int *arr, int low, int high)
{
    int pivot, i, j, temp;
    if(low < high) {
        pivot = low; // select a pivot element
        i = low;
        j = high;
        while(i < j) {

josephok

#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>

int mydup2(int oldfd, int newfd) {
    int fd = fcntl(oldfd, F_GETFL);
    if (fd == -1) {
        errno = EBADF;
        return -1;

josephok

set nocompatible              " required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()

" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

josephok

FROM ubuntu:14.04

MAINTAINER Joseph <[email protected]>

COPY sources.list /etc/apt/

RUN apt-get update
RUN apt-get install -y vim

josephok

#include <unistd.h>

extern char **environ;

int main(int argc, char const *argv[]) {
    char **ptr;
    for (ptr = environ; *ptr != NULL; ptr++) {
        puts(*ptr);
    }
    return 0;

josephok

// implements dup and dup2 using fcntl.

#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <assert.h>
#include <errno.h>

int mydup(int oldfd);
int mydup2(int oldfd, int newfd);

josephok

// Copy a file.
// Removed all error hanlders for simplicity.

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>

#ifndef BUF_SIZE
#define BUF_SIZE 4096

josephok

// Removed all error hanlder for simplicity

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>

int main(int argc, char const *argv[]) {
    int flags = O_RDWR;

josephok

#!/usr/bin/env bash

which jq &> /dev/null
if [[ $? -ne 0 ]]
then
    echo "Please install jq first, see https://stedolan.github.io/jq/"
    exit 1
fi
name=$(curl -s https://randomuser.me/api/)