#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <dirent.h>



int main(int argc, char *argv[])
{
  int ret;
  DIR *dp;
  if (argc !=2){
    printf("Usage:%s <name file>\n", argv[0]);
    return -1;
  }
  dp = opendir(argv[1]);
  if (dp !=NULL){
    printf("opendir is ok\n");
    return -1;
  }
  closedir(dp);
  printf("opendir is closed\n");
  return 0;
}