--- /dev/null
+/* This is file FILE.H */
+/*
+ * Copyright (C) 1991 DJ Delorie
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms is permitted
+ * provided that the above copyright notice and following paragraph are
+ * duplicated in all such forms.
+ *
+ * This file is distributed WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef _FILE_H_
+#define _FILE_H_
+
+#include <fcntl.h>
+
+#define L_SET 0
+#define L_CURR 1
+#define L_XTND 2
+
+
+#define F_OK 0 /* does file exist */
+#define X_OK 1 /* is it executable by caller */
+#define W_OK 2 /* is it writable by caller */
+#define R_OK 4 /* is it readable by caller */
+
+#endif