如何创建结构以使用C语言从目录存储日期时间和文件名？

Question

I'm trying to create a struct to store filename and datatime of files from a dir

  if(dir)
{
  struct dirent *file;
  struct stat info_;
  char buf[256];
  int N=0;

  struct element
  {
      char *name;
      time_t date;
  };
  struct element database[N];

  while ( (file=readdir(dir)) != NULL )
  {
    if(file->d_name[0] != '.')
    {
     strcpy(database->name, file->d_name);
     database->date=info_.st_mtime;
     N++;
     }
    }


    int i;
    for(i=0; i<N; i++)
    {
      printf("%s",database->name);
      printf("%d",database->date);  
    }

I'd like also to sort the struct but It's an other problem that come after this. The program give me segmentation fault. I'm not very sure that the struct is correct. How can I modify it? Thx

Answer 1

Oh well, I think it's obvious why it gives you segfault.

 int N=0;
 struct element database[N];

Now watch carefully what have you done. You created an array with 0 elements and you try to store something in it.

  strcpy(database->name, file->d_name);

Your array must contain enough space to store the name you wanted to store in it.

The best way to achieve that is using dynamically alocated space with malloc() ;