/**

 * files.c

 * Copyright (C) 2008 Markus Broeker

 */

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <fcntl.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <time.h>

#define  MAXDIRS 1000

#define MAXFILES 1000

#define GETRANDOM(max) (1+(int)((float)(max)*rand()/RAND_MAX+1.0))

char *GetRandomNumberString ()

{

    static char buffer[12];

    sprintf (buffer, "%d", GETRANDOM (65535));

    return buffer;

}

int main (int argc, char **argv)

{

    int i, j;

    int fd;

    char *s;

    if (argc != 2) {

        printf ("Usage: %s <basedir>\n", argv[0]);

        return EXIT_FAILURE;

    }

    if (chdir (argv[1]) == -1) {

        printf ("Initial Chdir to %s failed, aborting...\n", argv[1]);

        return EXIT_FAILURE;

    }

    srand (time (NULL));

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

        s = GetRandomNumberString ();

        mkdir (s, 0777);

        if (chdir (s) == -1) {

            printf ("Chdir to %s failed, aborting\n", s);

            return EXIT_FAILURE;

        }

        for (j = 0; j < MAXFILES; j++) {

            s = GetRandomNumberString ();

            if ((fd = open (s, O_RDWR | O_CREAT, 0666)) < 3) {

                perror ("CREATE");

                return EXIT_FAILURE;

            }

            close (fd);

        }

        chdir ("..");

    }

    return EXIT_SUCCESS;

}