[hbelusca] 60348: [RTL] Implement and export RtlGetLengthWithoutTrailingPathSeperators (aka. RtlGetLengthWithoutTrailingPathSeparators) (needed for win2k3's basesrv.dll). Patch by David Quintana, w...

Author: hbelusca
Date: Tue Sep 24 22:16:30 2013
New Revision: 60348

URL: http://svn.reactos.org/svn/reactos?rev=60348&view=rev
Log:
[RTL]
Implement and export RtlGetLengthWithoutTrailingPathSeperators (aka.
RtlGetLengthWithoutTrailingPathSeparators) (needed for win2k3's basesrv.dll).
Patch by David Quintana, where I simplified the loop (and reduced the number of local
variables).
CORE-7482 #comment Function committed in revision 60348, thanks ;)

Modified:
    trunk/reactos/dll/ntdll/def/ntdll.spec
    trunk/reactos/include/ndk/rtlfuncs.h
    trunk/reactos/lib/rtl/path.c

Modified: trunk/reactos/dll/ntdll/def/ntdll.spec
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/dll/ntdll/def/ntdll.spec?r…
==============================================================================
--- trunk/reactos/dll/ntdll/def/ntdll.spec	[iso-8859-1] (original)
+++ trunk/reactos/dll/ntdll/def/ntdll.spec	[iso-8859-1] Tue Sep 24 22:16:30 2013
@@ -630,7 +630,7 @@
 @ stdcall RtlGetLastWin32Error()
 @ stdcall RtlGetLengthWithoutLastFullDosOrNtPathElement(long ptr ptr)
 ; Yes, Microsoft really misspelled this one!
-;@ stdcall RtlGetLengthWithoutTrailingPathSeperators
+@ stdcall RtlGetLengthWithoutTrailingPathSeperators(long ptr ptr)
RtlGetLengthWithoutTrailingPathSeparators
 @ stdcall RtlGetLongestNtPathLength()
 @ stdcall RtlGetNativeSystemInformation(long long long long) NtQuerySystemInformation
 @ stdcall RtlGetNextRange(ptr ptr long)

Modified: trunk/reactos/include/ndk/rtlfuncs.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/include/ndk/rtlfuncs.h?rev…
==============================================================================
--- trunk/reactos/include/ndk/rtlfuncs.h	[iso-8859-1] (original)
+++ trunk/reactos/include/ndk/rtlfuncs.h	[iso-8859-1] Tue Sep 24 22:16:30 2013
@@ -2723,6 +2723,15 @@
     _Out_opt_ PBOOLEAN NameInvalid,
     _Out_ RTL_PATH_TYPE* PathType,
     _Out_opt_ PSIZE_T LengthNeeded
+);
+
+NTSYSAPI
+NTSTATUS
+NTAPI
+RtlGetLengthWithoutTrailingPathSeparators(
+    _In_ ULONG Flags,
+    _In_ PCUNICODE_STRING PathString,
+    _Out_ PULONG Length
 );
 
 NTSYSAPI

Modified: trunk/reactos/lib/rtl/path.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/lib/rtl/path.c?rev=60348&a…
==============================================================================
--- trunk/reactos/lib/rtl/path.c	[iso-8859-1] (original)
+++ trunk/reactos/lib/rtl/path.c	[iso-8859-1] Tue Sep 24 22:16:30 2013
@@ -1253,6 +1253,48 @@
 
 /*
  * @implemented
+ * @note: the export is called RtlGetLengthWithoutTrailingPathSeperators
+ *        (with a 'e' instead of a 'a' in "Seperators").
+ */
+NTSTATUS
+NTAPI
+RtlGetLengthWithoutTrailingPathSeparators(IN  ULONG Flags,
+                                          IN  PCUNICODE_STRING PathString,
+                                          OUT PULONG Length)
+{
+    ULONG NumChars;
+
+    /* Parameters validation */
+    if (Length == NULL) return STATUS_INVALID_PARAMETER;
+
+    *Length = 0;
+
+    if (PathString == NULL) return STATUS_INVALID_PARAMETER;
+
+    /* No flags are supported yet */
+    if (Flags != 0) return STATUS_INVALID_PARAMETER;
+
+    NumChars = PathString->Length / sizeof(WCHAR);
+
+    /*
+     * Notice that we skip the last character, therefore:
+     * - if we have: "some/path/f" we test for: "some/path/"
+     * - if we have: "some/path/"  we test for: "some/path"
+     * - if we have: "s" we test for: ""
+     * - if we have: "" then NumChars was already zero and we aren't there
+     */
+
+    while (NumChars > 0 && IS_PATH_SEPARATOR(PathString->Buffer[NumChars -
1]))
+    {
+        --NumChars;
+    }
+
+    *Length = NumChars;
+    return STATUS_SUCCESS;
+}
+
+/*
+ * @implemented
  */
 RTL_PATH_TYPE
 NTAPI