#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <linux/types.h>
#include <linux/dirent.h>
#include <linux/unistd.h>

_syscall3(int, getdents, uint, fd, struct dirent *, dirp, uint, count);

#define BUF_SIZE 1024

int main(int argc, char **argv)
{
  int fd;
  char buf[BUF_SIZE];
  int result;
  unsigned nread, offset;
  struct dirent *ent;
  
  if (argc < 2) return 1;
  fd = open(argv[1], 0);
  if (fd == -1) { perror("open"); goto err; }
  result = getdents(fd, (struct dirent *) buf, BUF_SIZE);
  if (result == -1) { perror("getdents"); goto err; }
  nread = result; offset = 0;
  while (offset < nread) {
    ent = (struct dirent *) &buf[offset];
    printf("d_ino=%ld, d_off=%llu, d_name=%s\n", ent->d_ino, (unsigned long long) ent->d_off, ent->d_name);
    offset += ent->d_reclen;
  }
  return 0;

 err:
  return 1;
}