From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 127339 invoked by alias); 22 Dec 2019 21:00:34 -0000 Mailing-List: contact cygwin-cvs-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: cygwin-cvs-owner@cygwin.com Received: (qmail 127206 invoked by uid 9996); 22 Dec 2019 21:00:25 -0000 Date: Sun, 22 Dec 2019 21:00:00 -0000 Message-ID: <20191222210025.127205.qmail@sourceware.org> Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Ken Brown To: cygwin-cvs@sourceware.org Subject: [newlib-cygwin] Cygwin: FIFO: use FILE_PIPE_REJECT_REMOTE_CLIENTS flag X-Act-Checkin: newlib-cygwin X-Git-Author: Ken Brown X-Git-Refname: refs/heads/master X-Git-Oldrev: b42d5651504bc08e3637f5b8a5916602855052f7 X-Git-Newrev: 3bc79b275ef2ac0a2bb6805183e62baa29b6a1a2 X-SW-Source: 2019-q4/txt/msg00047.txt.bz2 https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=3bc79b275ef2ac0a2bb6805183e62baa29b6a1a2 commit 3bc79b275ef2ac0a2bb6805183e62baa29b6a1a2 Author: Ken Brown Date: Sat Dec 21 17:53:52 2019 -0500 Cygwin: FIFO: use FILE_PIPE_REJECT_REMOTE_CLIENTS flag Add that flag to the pipe type argument when creating the Windows named pipe. And add a definition of that flag to ntdll.h (copied from /usr/include/w32api/ddk/ntifs.h). Diff: --- winsup/cygwin/fhandler_fifo.cc | 3 ++- winsup/cygwin/ntdll.h | 3 ++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/winsup/cygwin/fhandler_fifo.cc b/winsup/cygwin/fhandler_fifo.cc index 92797ce..fd82230 100644 --- a/winsup/cygwin/fhandler_fifo.cc +++ b/winsup/cygwin/fhandler_fifo.cc @@ -184,7 +184,8 @@ fhandler_fifo::create_pipe_instance (bool first) timeout.QuadPart = -500000; status = NtCreateNamedPipeFile (&ph, access, &attr, &io, sharing, first ? FILE_CREATE : FILE_OPEN, 0, - FILE_PIPE_MESSAGE_TYPE, + FILE_PIPE_MESSAGE_TYPE + | FILE_PIPE_REJECT_REMOTE_CLIENTS, FILE_PIPE_MESSAGE_MODE, nonblocking, max_instances, DEFAULT_PIPEBUFSIZE, DEFAULT_PIPEBUFSIZE, diff --git a/winsup/cygwin/ntdll.h b/winsup/cygwin/ntdll.h index e19cc8a..1c07d02 100644 --- a/winsup/cygwin/ntdll.h +++ b/winsup/cygwin/ntdll.h @@ -557,7 +557,8 @@ enum enum { FILE_PIPE_BYTE_STREAM_TYPE = 0, - FILE_PIPE_MESSAGE_TYPE = 1 + FILE_PIPE_MESSAGE_TYPE = 1, + FILE_PIPE_REJECT_REMOTE_CLIENTS = 2 }; typedef struct _FILE_PIPE_PEEK_BUFFER {