#include <stdio.h>
#include <unistd.h>
#include <sys/wait.h>
#include <string.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/ioctl.h>
#include <fcntl.h>

void    sig_handler(int sig)
{
    write(1, "SIGTTIN received\n", 17);
    exit(0);
}

int     main()
{
    pid_t   child_pid;
    char    msg[256];

    child_pid = fork();
    memset(msg, 0, 256);
    if (child_pid == 0)
    {
        setpgid(0, 0); /* Create new process group */
        signal(SIGTTIN, sig_handler);
        sleep(2);
        read(0, msg, 255);
        write(1, "\nPunks not dead!\n", 17);
    }
    else if (child_pid > 0)
    {
        sleep(1);
        ioctl(0, TIOCSPGRP, &child_pid);
        signal(SIGTTIN, sig_handler);
        read(0, msg, 255);
        wait(&child_pid);
        write(1, "Child execution finished\n", 25);
    }
    return (0);
}