Function search_for_subdir

refs/ref-cache.c:158–169

* Search for a directory entry directly within dir (without * recursing). Sort dir if necessary. subdirname must be a directory * name (i.e., end in '/'). Returns NULL if the desired * directory cannot be found. dir must already be complete. */

 * directory cannot be found.  dir must already be complete.
 */
static struct ref_dir *search_for_subdir(struct ref_dir *dir,
					 const char *subdirname, size_t len)
{
	int entry_index = search_ref_dir(dir, subdirname, len);
	struct ref_entry *entry;

	if (entry_index == -1)
		return NULL;

	entry = dir->entries[entry_index];
	return get_ref_dir(entry);
}

/*
 * If refname is a reference name, find the ref_dir within the dir