#define _FILE_OFFSET_BITS 64

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

int
main (int argc, char **argv)
{
  int fd;
  off_t off;

  if (argc < 3) { printf ("usage"); exit (1); }
  fd = open (argv[1], O_RDONLY);
  if (fd < 0) { perror ("open failed"); exit (1); }
  off = atoi (argv[2]);
  if (lseek (fd, off, SEEK_CUR) < off)
    { perror ("lseek failed"); exit (1); }
  exit (0);
}