[newlib-cygwin] Cygwin: FIFO: open pipes with FILE_READ_ATTRIBUTES access
Corinna Vinschen
corinna@sourceware.org
Tue Sep 14 15:06:39 GMT 2021
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=eb50f82677c914aadee41a5df4d8693a5af81e25
commit eb50f82677c914aadee41a5df4d8693a5af81e25
Author: Ken Brown <kbrown@cornell.edu>
Date: Fri Sep 3 14:23:47 2021 -0400
Cygwin: FIFO: open pipes with FILE_READ_ATTRIBUTES access
This is needed by NtQueryInformationFile, which is used by select.
Diff:
---
winsup/cygwin/fhandler_fifo.cc | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/winsup/cygwin/fhandler_fifo.cc b/winsup/cygwin/fhandler_fifo.cc
index b55ba95e7..08b292cad 100644
--- a/winsup/cygwin/fhandler_fifo.cc
+++ b/winsup/cygwin/fhandler_fifo.cc
@@ -254,7 +254,7 @@ fhandler_fifo::open_pipe (HANDLE& ph)
status = npfs_handle (npfsh);
if (!NT_SUCCESS (status))
return status;
- access = GENERIC_WRITE | SYNCHRONIZE;
+ access = GENERIC_WRITE | FILE_READ_ATTRIBUTES | SYNCHRONIZE;
InitializeObjectAttributes (&attr, get_pipe_name (),
openflags & O_CLOEXEC ? 0 : OBJ_INHERIT,
npfsh, NULL);
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