* include/sys/ioctl.h: Add some linux defines.

1 files changed, 36 insertions, 4 deletions

diff --git a/winsup/cygwin/include/sys/ioctl.h b/winsup/cygwin/include/sys/ioctl.h
index fd9515fb1..461def6fd 100644
--- a/winsup/cygwin/include/sys/ioctl.h
+++ b/winsup/cygwin/include/sys/ioctl.h
@@ -1,6 +1,6 @@
 /* sys/ioctl.h
 
-   Copyright 1998, 2001, 2002 Red Hat, Inc.
+   Copyright 1998, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc.
 
 This file is part of Cygwin.
 
@@ -15,15 +15,47 @@ details. */
 
 #include <sys/cdefs.h>
 
+__BEGIN_DECLS
+
 /* /dev/windows ioctls */
 
 #define WINDOWS_POST	0	/* Set write() behavior to PostMessage() */
 #define WINDOWS_SEND	1	/* Set write() behavior to SendMessage() */
 #define WINDOWS_HWND	2	/* Set hWnd for read() calls */
 
-__BEGIN_DECLS
-
-int ioctl (int __fd, int __cmd, ...);
+/* Some standard linux defines */
+
+#define _IOC_NRBITS     8
+#define _IOC_TYPEBITS   8
+#define _IOC_SIZEBITS   14
+#define _IOC_DIRBITS    2
+ 
+#define _IOC_NRMASK     ((1 << _IOC_NRBITS)-1)
+#define _IOC_TYPEMASK   ((1 << _IOC_TYPEBITS)-1)
+#define _IOC_SIZEMASK   ((1 << _IOC_SIZEBITS)-1)
+#define _IOC_DIRMASK    ((1 << _IOC_DIRBITS)-1)
+ 
+#define _IOC_NRSHIFT    0
+#define _IOC_TYPESHIFT  (_IOC_NRSHIFT+_IOC_NRBITS)
+#define _IOC_SIZESHIFT  (_IOC_TYPESHIFT+_IOC_TYPEBITS)
+#define _IOC_DIRSHIFT   (_IOC_SIZESHIFT+_IOC_SIZEBITS)
+ 
+#define _IOC_NONE       0U
+#define _IOC_WRITE      1U
+#define _IOC_READ       2U
+ 
+#define _IOC(dir,type,nr,size) \
+       (((dir)  << _IOC_DIRSHIFT) | \
+	 +       ((type) << _IOC_TYPESHIFT) | \
+	 +       ((nr)   << _IOC_NRSHIFT) | \
+	 +       ((size) << _IOC_SIZESHIFT))
+
+#define _IO(type,nr)            _IOC(_IOC_NONE,(type),(nr),0)
+#define _IOR(type,nr,size)      _IOC(_IOC_READ,(type),(nr),sizeof(size))
+#define _IOW(type,nr,size)      _IOC(_IOC_WRITE,(type),(nr),sizeof(size))
+#define _IOWR(type,nr,size)     _IOC(_IOC_READ|_IOC_WRITE,(type),(nr),sizeof(size))
+
+int __cdecl ioctl (int __fd, int __cmd, ...);
 
 __END_DECLS