Implement RtlCopySecurityDescriptor.
diff --git a/include/winternl.h b/include/winternl.h
index 319bc78..b5e0505 100644
--- a/include/winternl.h
+++ b/include/winternl.h
@@ -1787,6 +1787,7 @@
void WINAPI RtlCopyLuid(PLUID,const LUID*);
void WINAPI RtlCopyLuidAndAttributesArray(ULONG,const LUID_AND_ATTRIBUTES*,PLUID_AND_ATTRIBUTES);
BOOLEAN WINAPI RtlCopySid(DWORD,PSID,PSID);
+NTSTATUS WINAPI RtlCopySecurityDescriptor(PSECURITY_DESCRIPTOR,PSECURITY_DESCRIPTOR);
void WINAPI RtlCopyString(STRING*,const STRING*);
void WINAPI RtlCopyUnicodeString(UNICODE_STRING*,const UNICODE_STRING*);
NTSTATUS WINAPI RtlCreateAcl(PACL,DWORD,DWORD);