/**

 *     $Id: urandom.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $

 * $Source: /development/c/demos/urandom.c,v $

 *

 */

#include <stdio.h>

#include <stdlib.h>

#include <fcntl.h>

#include <unistd.h>

int compare (unsigned char *a, unsigned char *b)

{

    if (*a > *b)

        return 1;

    return -1;

}

int main (int argc, char **argv)

{

    int i;

    int elements;

    int fd;

    unsigned char numbers[256] = { 0 };

    fd = open ("/dev/urandom", O_RDONLY);

    if (fd == -1)

        return EXIT_FAILURE;

    elements = read (fd, numbers, 255);

    numbers[elements] = 0;

    qsort (numbers, elements, sizeof (unsigned char), (void *)&compare);

    for (i = 0; i < elements; i++) {

        printf ("Number: %d\n", numbers[i]);

    }

    close (fd);

    return EXIT_SUCCESS;

}