#include <stdio.h>
#include <fcntl.h>
#include <sys/types.h>
#include <unistd.h>

main()
{
  long long big;
  int fd;

  big = (long long)3000000000ll;
  if( (fd = open("crap", O_RDWR, 0666 ))<0)
    perror("open");
  if( llseek( fd, big, SEEK_END ))
    perror("llseek");

  close(fd);
}