[newlib-cygwin] Cygwin: use NULL security descriptor in InitializeObjectAttributes

[Corinna Vinschen]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=3b3ba558e90e7ce07eb0b9a5939453d4b90bd5e5

commit 3b3ba558e90e7ce07eb0b9a5939453d4b90bd5e5
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Mon Feb 25 21:06:15 2019 +0100

    Cygwin: use NULL security descriptor in InitializeObjectAttributes
    
    Using sec_none{_nih} is just a roundabout way to specify a
    NULL SD.
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/forkable.cc    | 6 ++----
 winsup/cygwin/mmap.cc        | 3 +--
 winsup/cygwin/posix_timer.cc | 3 +--
 3 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/winsup/cygwin/forkable.cc b/winsup/cygwin/forkable.cc
index 1067eac..d1b0f57 100644
--- a/winsup/cygwin/forkable.cc
+++ b/winsup/cygwin/forkable.cc
@@ -58,8 +58,7 @@ mkdirs (PWCHAR ntdirname, int lastsepcount)
 	  UNICODE_STRING dn;
 	  RtlInitUnicodeString (&dn, ntdirname);
 	  OBJECT_ATTRIBUTES oa;
-	  InitializeObjectAttributes (&oa, &dn, 0, NULL,
-				      sec_none_nih.lpSecurityDescriptor);
+	  InitializeObjectAttributes (&oa, &dn, 0, NULL, NULL);
 	  HANDLE dh = NULL;
 	  NTSTATUS status;
 	  IO_STATUS_BLOCK iosb;
@@ -765,8 +764,7 @@ dll_list::create_forkables ()
       RtlInitUnicodeString (&fn, ntname);
 
       OBJECT_ATTRIBUTES oa;
-      InitializeObjectAttributes (&oa, &fn, 0, NULL,
-				  sec_none_nih.lpSecurityDescriptor);
+      InitializeObjectAttributes (&oa, &fn, 0, NULL, NULL);
       HANDLE hlocal = NULL;
       NTSTATUS status;
       IO_STATUS_BLOCK iosb;
diff --git a/winsup/cygwin/mmap.cc b/winsup/cygwin/mmap.cc
index f48790a..1d81d53 100644
--- a/winsup/cygwin/mmap.cc
+++ b/winsup/cygwin/mmap.cc
@@ -145,8 +145,7 @@ CreateMapping (HANDLE fhdl, size_t len, off_t off, DWORD openflags,
   ULONG attributes = attached (prot) ? SEC_RESERVE : SEC_COMMIT;
 
   OBJECT_ATTRIBUTES oa;
-  InitializeObjectAttributes (&oa, NULL, OBJ_INHERIT, NULL,
-			      sec_none.lpSecurityDescriptor);
+  InitializeObjectAttributes (&oa, NULL, OBJ_INHERIT, NULL, NULL);
 
   if (fhdl == INVALID_HANDLE_VALUE)
     {
diff --git a/winsup/cygwin/posix_timer.cc b/winsup/cygwin/posix_timer.cc
index 0332cab..d9d4a9a 100644
--- a/winsup/cygwin/posix_timer.cc
+++ b/winsup/cygwin/posix_timer.cc
@@ -306,8 +306,7 @@ timer_tracker::settime (int flags, const itimerspec *new_value,
 	    {
 	      OBJECT_ATTRIBUTES attr;
 
-	      InitializeObjectAttributes (&attr, NULL, 0, NULL,
-					  sec_none_nih.lpSecurityDescriptor);
+	      InitializeObjectAttributes (&attr, NULL, 0, NULL, NULL);
 	      status = NtCreateEvent (&cancel_evt, EVENT_ALL_ACCESS, &attr,
 				      NotificationEvent, FALSE);
 	      if (!NT_SUCCESS (status))