X-Recipient: archive-cygwin AT delorie DOT com
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org ACB4A3851C0C
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com;
	s=default; t=1590653530;
	bh=JnIJQlN/uExPiFN5d3Dcjbe9pyi3htnq00MOyYtUIiw=;
	h=Date:To:In-Reply-To:Subject:List-Id:List-Unsubscribe:List-Archive:
	 List-Post:List-Help:List-Subscribe:From:Reply-To:From;
	b=dxzHXjf6/ddU7xQDaIAOsoX3FYGivvdSES72j4j0E3wFf39spYMZQOt6boSl7EulM
	 iGi16pozR1+jq2M4XzgSuk4RDdpzSTEkODY9g/nCtSZxsqC1i+5eZ8hLou3T8ENhex
	 HKW5Hk8KlM1g1S5ERt9SlFVZq67aU86hVu4xtC1I=
X-Original-To: cygwin AT cygwin DOT com
Delivered-To: cygwin AT cygwin DOT com
DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 208A83851C0C
DKIM-Filter: OpenDKIM Filter v2.9.2 office.targem.ru DCC9A4F81A23
Date: Thu, 28 May 2020 14:12:03 +0600 (YEKT)
To: cygwin AT cygwin DOT com
Message-ID: <1562427636.19173685.1590653523730.JavaMail.zimbra@office.targem.ru>
In-Reply-To: <1895966314.19173483.1590653374238.JavaMail.zimbra@office.targem.ru>
Subject: Seems like a bug with mkfifo -m
MIME-Version: 1.0
X-Originating-IP: [192.168.20.207]
X-Mailer: Zimbra 8.0.8_GA_6184 (ZimbraWebClient - GC81 (Win)/8.0.8_GA_6184)
Thread-Topic: Seems like a bug with mkfifo -m
Thread-Index: ErYCCNzHawmDWiaEmtaA9GoIvS1BrQ==
X-Spam-Status: No, score=0.7 required=5.0 tests=BAYES_50, DKIM_SIGNED,
 DKIM_VALID, DKIM_VALID_AU, SPF_HELO_PASS,
 SPF_PASS autolearn=ham autolearn_force=no version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on
 server2.sourceware.org
X-BeenThere: cygwin AT cygwin DOT com
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: General Cygwin discussions and problem reports <cygwin.cygwin.com>
List-Unsubscribe: <http://cygwin.com/mailman/options/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=unsubscribe>
List-Archive: <https://cygwin.com/pipermail/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-request AT cygwin DOT com?subject=help>
List-Subscribe: <http://cygwin.com/mailman/listinfo/cygwin>,
 <mailto:cygwin-request AT cygwin DOT com?subject=subscribe>
From: =?utf-8?b?0JTQvNC40YLRgNC40Lkg0JXRgdCw0YDQtdCyIHZpYSBDeWd3aW4=?=
 <cygwin AT cygwin DOT com>
Reply-To: =?utf-8?B?0JTQvNC40YLRgNC40Lkg0JXRgdCw0YDQtdCy?=
 <ed AT office DOT targem DOT ru>
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Errors-To: cygwin-bounces AT cygwin DOT com
Sender: "Cygwin" <cygwin-bounces AT cygwin DOT com>

Hi, all

When i ran cygwin 2.x, i used mkfifo -m 0600 file to create a named pipe with no user and group permissions.

in the latest cygwin the above command creates device with 0644 permissions. And i cant drop it to 0600:

cygcheck.exe -V
cygcheck (cygwin) 3.1.4

$ umask 0077
$ touch somefile; ls -l somefile
-rw------- 1 admin absent 0 may 26 18:15 somefile

$ mkfifo -m 0600 somefifo; ls -l somefifo
prw-r--r-- 1 admin absent 0 may 26 18:16 somefifo

$ chmod 600 somefifo; ls -l somefifo
prw-r--r-- 1 admin absent 0 may 26 18:16 somefifo



In old-good cygwin 2.x the command works as expected:

$ cygcheck.exe -V
cygcheck (cygwin) 2.9.0

$ umask
0022

$ mkfifo -m 0600 somefifo; ls -l somefifo
prw------- 1 builduser Domain Users 0 May 26 18:21 somefifo



I've also questioned the topic at https://superuser.com/questions/1555204/cygwin-3-x-mkfifo-m0600-creates-named-pipe-with-0644-permissions


best regards,
 Yoshi kakbudto

--
Problem reports:      https://cygwin.com/problems.html
FAQ:                  https://cygwin.com/faq/
Documentation:        https://cygwin.com/docs.html
Unsubscribe info:     https://cygwin.com/ml/#unsubscribe-simple