2003-03-16 Casper S. Hornstrup <chorns@users.sourceforge.net>

[reactos.git] / reactos / ntoskrnl / fs / util.c

diff --git a/reactos/ntoskrnl/fs/util.c b/reactos/ntoskrnl/fs/util.c
index c0d1c3e..0fe5406 100644 (file)
--- a/reactos/ntoskrnl/fs/util.c
+++ b/reactos/ntoskrnl/fs/util.c
@@ -1,9 +1,9 @@
-/* $Id: util.c,v 1.8 2002/01/13 22:02:31 ea Exp $
+/* $Id: util.c,v 1.13 2003/03/16 13:18:49 chorns Exp $
  *
  * reactos/ntoskrnl/fs/util.c
  *
  */
-#include <ntos.h>
+#include <ddk/ntddk.h>
 #include <ddk/ntifs.h>
 
 
@@ -43,7 +43,8 @@ FsRtlIsTotalDeviceFailure (
 
 /**********************************************************************
  * NAME                                                        EXPORTED
- *     FsRtlIsNtstatusExpected@4
+ *     FsRtlIsNtstatusExpected/1
+ *     stack32 = 4
  *
  * DESCRIPTION
  *     Check an NTSTATUS value is expected by the FS kernel
@@ -54,14 +55,18 @@ FsRtlIsTotalDeviceFailure (
  *             NTSTATUS to test.
  *
  * RETURN VALUE
- *     TRUE if NtStatus is either STATUS_ACCESS_VIOLATION,
- *     STATUS_ILLEGAL_INSTRUCTION, STATUS_DATATYPE_MISALIGNMENT,
- *     0xC00000AA; FALSE otherwise.
- *
- * NOTES
- *     By calling the function with all possible values,
- *     one unknown NTSTATUS value makes the function
- *     return 0x00 (0xC00000AA).
+ *     TRUE if NtStatus is NOT one out of:
+ *     - STATUS_ACCESS_VIOLATION
+ *     - STATUS_ILLEGAL_INSTRUCTION
+ *     - STATUS_DATATYPE_MISALIGNMENT
+ *     - STATUS_INSTRUCTION_MISALIGNMENT
+ *     which are the forbidden return stati in the FsRtl
+ *     subsystem; FALSE otherwise.
+ *
+ * REVISIONS
+ *     2002-01-17 Fixed a bad bug reported by Bo Brantén.
+ *     Up to version 1.8, this function's semantics was
+ *     exactly the opposite! Thank you Bo.
  */
 BOOLEAN
 STDCALL
@@ -75,8 +80,8 @@ FsRtlIsNtstatusExpected (
                || (STATUS_ILLEGAL_INSTRUCTION == NtStatus)
                || (STATUS_INSTRUCTION_MISALIGNMENT == NtStatus)
                )
-               ? TRUE
-               : FALSE;
+               ? FALSE
+               : TRUE;
 }
        
 
@@ -236,7 +241,21 @@ FsRtlGetFileSize (
     IN OUT PLARGE_INTEGER   FileSize
     )
 {
-       return STATUS_NOT_IMPLEMENTED;
+       FILE_STANDARD_INFORMATION Info;
+       NTSTATUS Status;
+       ULONG Length;
+
+       Status = IoQueryFileInformation(FileObject,
+               FileStandardInformation,
+               sizeof(Info),
+               &Info,
+               &Length);
+       if (NT_SUCCESS(Status))
+               {
+                       FileSize->QuadPart = Info.EndOfFile.QuadPart;
+               }
+
+       return Status;
 }