I've now tested the zero-inode path on a Wasm engine specially-modified
to have `fd_readdir` set inode numbers to zero. Fix two bugs this turned up:
- Increment `buffer_processed`, as noticed by @yamt
- Don't do an `fstatat` on "..", because that references a path outside
of the directory, which gets a permission-denied error.
// inode number.
off_t d_ino = entry.d_ino;
unsigned char d_type = entry.d_type;
- if (d_ino == 0) {
+ if (d_ino == 0 && strcmp(dirent->d_name, "..") != 0) {
struct stat statbuf;
if (fstatat(dirp->fd, dirent->d_name, &statbuf, AT_SYMLINK_NOFOLLOW) != 0) {
if (errno == ENOENT) {
// The file disappeared before we could read it, so skip it.
+ dirp->buffer_processed += entry_size;
continue;
}
return NULL;