[PATCH 1/3] ntdll: Accept omitting reslen in RtlUTF8ToUnicodeN.

[Alfred Agrell]

From: Alfred Agrell

---
 dlls/ntdll/locale.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dlls/ntdll/locale.c b/dlls/ntdll/locale.c
index 545cc628909..ebc4b3befb6 100644
--- a/dlls/ntdll/locale.c
+++ b/dlls/ntdll/locale.c
@@ -950,14 +950,15 @@ NTSTATUS WINAPI RtlUTF8ToUnicodeN( WCHAR *dst, DWORD dstlen, DWORD *reslen, cons
     NTSTATUS status;

if (!src) return STATUS_INVALID_PARAMETER_4;
-    if (!reslen) return STATUS_INVALID_PARAMETER;
+    if (!reslen && !dst) return STATUS_INVALID_PARAMETER;

if (!dst)
         status = utf8_mbstowcs_size( src, srclen, &ret );
     else
         status = utf8_mbstowcs( dst, dstlen / sizeof(WCHAR), &ret, src, srclen );

-    *reslen = ret * sizeof(WCHAR);
+    if (reslen)
+        *reslen = ret * sizeof(WCHAR);
     return status;
 }