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

void INThandler(int);

main()
{
    signal(SIGINT, INThandler);
    
    printf("Sleep #1\n");
    sleep(1);

    printf("Sleep #2\n");
    sleep(1);

    printf("Sleep #3\n");
    sleep(1);    

    printf("Sleep #4\n");
    sleep(1);

    printf("Sleep #5\n");
    sleep(1);

    printf("Program Exiting\n");
    exit(0);
}

void INThandler(int sig)
{
     signal(sig, SIG_IGN);
     printf("\nDo you really want to quit? [y/n] ");
     
     int c = getchar();
     if (c == 'y' || c == 'Y') {
         exit(0);
     }
     else {
         signal(SIGINT, INThandler);
         getchar();
     }
}