[PATCH] Add RtlDosPathNameToRelativeNtPathName_U

[Louis Lenders]

Trying to get scoop running in wine, turned out it needs robocopy.exe. As wine lacks robocopy, i had to fall
back to native robocopy, in this case from windows 8.1. Then one gets crash below.

Call from 7BC2C17A to unimplemented function ntdll.dll.RtlDosPathNameToRelativeNtPathName_U, aborting
wine: Unimplemented function ntdll.dll.RtlDosPathNameToRelativeNtPathName_U called at address 7BC2C17A (thread 0024), starting debugger...

So I added similar code as for RtlDosPathNameToNtPathName_U --> RtlDosPathNameToNtPathName_U_WithStatus
and that makes robocopy  work

Signed-off-by: Louis Lenders 
---
 dlls/ntdll/ntdll.spec |  1 +
 dlls/ntdll/path.c     | 11 +++++++++++
 2 files changed, 12 insertions(+)

diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index 740030f2066..bfdf61f1e7a 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -605,6 +605,7 @@
 # @ stub RtlDosApplyFileIsolationRedirection_Ustr
 @ stdcall RtlDosPathNameToNtPathName_U(wstr ptr ptr ptr)
 @ stdcall RtlDosPathNameToNtPathName_U_WithStatus(wstr ptr ptr ptr)
+@ stdcall RtlDosPathNameToRelativeNtPathName_U(wstr ptr ptr ptr)
 @ stdcall RtlDosPathNameToRelativeNtPathName_U_WithStatus(wstr ptr ptr ptr)
 @ stdcall RtlDosSearchPath_U(wstr wstr wstr long ptr ptr)
 # @ stub RtlDosSearchPath_Ustr
diff --git a/dlls/ntdll/path.c b/dlls/ntdll/path.c
index 86760f178e1..0262c1db18e 100644
--- a/dlls/ntdll/path.c
+++ b/dlls/ntdll/path.c
@@ -263,6 +263,17 @@ NTSTATUS WINAPI RtlDosPathNameToRelativeNtPathName_U_WithStatus(const WCHAR *dos
     return RtlDosPathNameToNtPathName_U_WithStatus(dos_path, ntpath, file_part, NULL);
 }

+/**************************************************************************
+ *        RtlDosPathNameToRelativeNtPathName_U [NTDLL.@]
+ *
+ * See RtlDosPathNameToRelativeNtPathName_U_WithStatus
+ */
+BOOLEAN WINAPI RtlDosPathNameToRelativeNtPathName_U(const WCHAR *dos_path,
+    UNICODE_STRING *ntpath, WCHAR **file_part, RTL_RELATIVE_NAME *relative)
+{
+    return RtlDosPathNameToRelativeNtPathName_U_WithStatus(dos_path, ntpath, file_part, relative) == STATUS_SUCCESS;
+}
+
 /**************************************************************************
  *        RtlReleaseRelativeName [NTDLL.@]
  */