Index: /trunk/src/VBox/Runtime/r3/posix/fileio-posix.cpp
===================================================================
--- /trunk/src/VBox/Runtime/r3/posix/fileio-posix.cpp	(revision 26760)
+++ /trunk/src/VBox/Runtime/r3/posix/fileio-posix.cpp	(revision 26761)
@@ -335,4 +335,14 @@
 
 
+RTR3DECL(int)  RTFileOpenBitBucket(PRTFILE phFile, uint32_t fAccess)
+{
+    AssertReturn(   fAccess == RTFILE_O_READ
+                 || fAccess == RTFILE_O_WRITE
+                 || fAccess == RTFILE_O_READWRITE,
+                 VERR_INVALID_PARAMETER);
+    return RTFileOpen(phFile, "/dev/null", fAccess | RTFILE_O_DENY_NONE | RTFILE_O_OPEN);
+}
+
+
 RTR3DECL(int)  RTFileClose(RTFILE File)
 {
Index: /trunk/src/VBox/Runtime/r3/win/fileio-win.cpp
===================================================================
--- /trunk/src/VBox/Runtime/r3/win/fileio-win.cpp	(revision 26760)
+++ /trunk/src/VBox/Runtime/r3/win/fileio-win.cpp	(revision 26761)
@@ -356,4 +356,14 @@
 
 
+RTR3DECL(int)  RTFileOpenBitBucket(PRTFILE phFile, uint32_t fAccess)
+{
+    AssertReturn(   fAccess == RTFILE_O_READ
+                 || fAccess == RTFILE_O_WRITE
+                 || fAccess == RTFILE_O_READWRITE,
+                 VERR_INVALID_PARAMETER);
+    return RTFileOpen(phFile, "NUL", fAccess | RTFILE_O_DENY_NONE | RTFILE_O_OPEN);
+}
+
+
 RTR3DECL(int)  RTFileClose(RTFILE File)
 {