rst_readdir
dp = rst_readdir(dirp); /* "." */
dp = rst_readdir(dirp); /* ".." */
dp = rst_readdir(dirp); /* first real entry */
dp = rst_readdir(dirp);
if ((dp = rst_readdir(dirp)) != NULL && /* "." */
(dp = rst_readdir(dirp)) != NULL && /* ".." */
dp = rst_readdir(dirp);
while (dp = rst_readdir(dirp)) {
extern struct direct *rst_readdir(RST_DIR *);
extern struct direct *rst_readdir();
while ((dp = rst_readdir(dirp)) != NULL && dp->d_ino != 0) {