int fileis_block  (char *fn);
int fileis_char   (char *fn);
int fileis_dir    (char *fn);
/*  fileis_exec   (char *fn); */
int fileis_exists (char *fn);
int fileis_fifo   (char *fn);
int fileis_setgid (char *fn);
int fileis_link   (char *fn);
/*  fileis_read   (char *fn); */
int fileis_regular(char *fn);
int fileis_socket (char *fn);
int fileis_setuid (char *fn);
int fileis_vtx    (char *fn);
/*  fileis_write  (char *fn); */