sandbox: add flags for open() call
This provides a way for callers to create files for writing. The flags
are translated at runtime, for the ones we support.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/include/os.h b/include/os.h
index f74766d..6b7ee47 100644
--- a/include/os.h
+++ b/include/os.h
@@ -1,4 +1,9 @@
/*
+ * Operating System Interface
+ *
+ * This provides access to useful OS routines for the sandbox architecture.
+ * They are kept in a separate file so we can include system headers.
+ *
* Copyright (c) 2011 The Chromium OS Authors.
* See file CREDITS for list of people who contributed to this
* project.
@@ -19,12 +24,6 @@
* MA 02111-1307 USA
*/
-/*
- * Operating System Interface
- *
- * This provides access to useful OS routines from the sandbox architecture
- */
-
#ifndef __OS_H__
#define __OS_H__
@@ -72,6 +71,12 @@
*/
int os_open(const char *pathname, int flags);
+#define OS_O_RDONLY 0
+#define OS_O_WRONLY 1
+#define OS_O_RDWR 2
+#define OS_O_MASK 3 /* Mask for read/write flags */
+#define OS_O_CREAT 0100
+
/**
* Access to the OS close() system call
*