#include <stdio.h>
#include <utmp.h>
#include <string.h>
#include <time.h>
 
int main(  )
 
{
 
 
 
 
        struct lastlog vsebina_lastloga ;
        FILE *datoteka ;
 
        if ((datoteka = fopen("/var/log/lastlog", "r+")) == NULL) 
 
        {
                fprintf(stderr,"Napaka pri odpiranju datoteke\n");
                return (9);
 
        }
 
 
                struct tm faketime ;
 
                faketime.tm_sec = 40; 
                faketime.tm_min = 54;     
                faketime.tm_hour = 21 ;
                faketime.tm_mday = 12 ;
                faketime.tm_mon = 3;   
                faketime.tm_year = 304 ;        
                faketime.tm_wday =  5 ; 
                faketime.tm_yday = 300 ;
 
 
        datoteka = fopen("/var/log/lastlog", "r+") ;
        fread(&vsebina_lastloga, sizeof(struct lastlog), 1, datoteka);
 
        printf("%s\n%s\n" , asctime(&faketime), ctime(&vsebina_lastloga.ll_time)) ;
 
        fclose(datoteka) ;
        return 0 ;
 
}

#include <stdio.h>
#include <time.h>    
#include <errno.h>
int main(int argc, char *argv[]  )

{   
    struct tm faketime ;
    time_t ll_time=86400 * 2000;
    faketime.tm_sec = 40;
    faketime.tm_min = 54;
    faketime.tm_hour = 21 ;
    faketime.tm_mday = 12 ;
    faketime.tm_mon = 3;
    faketime.tm_year = 304 ;
    faketime.tm_wday =  5 ;
    faketime.tm_yday = 300 ;     
     printf("%s\n", asctime(&faketime) );
     printf("errno =%d\n", errno);
     printf("%s\n" , ctime(&ll_time)) ;
     printf("errno =%d\n", errno);
     return 0 ;
}