Nucleus

diff --git a/vfs/open.c b/vfs/open.c
index cf03a24..630b675 100644
--- a/vfs/open.c
+++ b/vfs/open.c
@@ -187,3 +187,41 @@ open(const char *name, int flags, ...)
 	put(inode);
 	return fd;
 }
+
+/* Make a directory */
+int
+mkdir(const char *pathname, mode_t mode)
+{
+	if (!pathname)
+		return -EFAULT;
+	if (!verify_access(pathname, strnlen(pathname, PATH_MAX), PROT_READ))
+		return -EFAULT;
+	int err;
+	ObjectList *custody = create_list(&dirEntryType);
+	Inode *inode = lookup(pathname, custody);
+	if (inode) {
+		err = -EEXIST;
+		goto end;
+	}
+	if (!count(custody)) {
+		err = -ENOENT;
+		goto end;
+	}
+	/* Check write permission */
+	DirEntry *entry = get_nth_item(custody, count(custody) - 2);
+	if (entry)
+		inode = entry->inode;
+	else
+		inode = current->fs->root;
+	if (!permission(inode, PROT_WRITE)) {
+		err = -EACCES;
+		goto end;
+	}
+
+	/* Create directory */
+	err = inode_mkdir(inode, get_nth_item(custody, count(custody) - 1),
+	                  mode);
+end:
+	destroy_list(custody);
+	return err;
+}