[newlib-cygwin] Cygwin: fstat_helper: always use handle in call to get_file_attribute

[Ken Brown <kbrown@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=70f63608699321fed8e3501469e5a8a3c416186d

commit 70f63608699321fed8e3501469e5a8a3c416186d
Author: Ken Brown <kbrown@cornell.edu>
Date:   Wed Feb 10 21:15:20 2021 -0500

    Cygwin: fstat_helper: always use handle in call to get_file_attribute
    
    Previously, the call to get_file_attribute for FIFOs set the first
    argument to NULL instead of the handle h returned by get_stat_handle,
    thereby forcing the file to be opened for fetching the security
    descriptor in get_file_sd().  This was done because h might have been
    a pipe handle rather than a file handle, and its permissions would not
    necessarily reflect those of the file.
    
    That situation can no longer occur with the new fhandler_fifo::fstat
    introduced in the previous commit.

Diff:
---
 winsup/cygwin/fhandler_disk_file.cc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/winsup/cygwin/fhandler_disk_file.cc b/winsup/cygwin/fhandler_disk_file.cc
index ef9171bbf..6170427b0 100644
--- a/winsup/cygwin/fhandler_disk_file.cc
+++ b/winsup/cygwin/fhandler_disk_file.cc
@@ -475,8 +475,7 @@ fhandler_base::fstat_helper (struct stat *buf)
   else if (pc.issocket ())
     buf->st_mode = S_IFSOCK;
 
-  if (!get_file_attribute (is_fs_special () && !pc.issocket () ? NULL : h, pc,
-			   &buf->st_mode, &buf->st_uid, &buf->st_gid))
+  if (!get_file_attribute (h, pc, &buf->st_mode, &buf->st_uid, &buf->st_gid))
     {
       /* If read-only attribute is set, modify ntsec return value */
       if (::has_attribute (attributes, FILE_ATTRIBUTE_READONLY)