From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2123.outbound.protection.outlook.com [40.107.243.123]) by sourceware.org (Postfix) with ESMTPS id 01F8D3870842 for ; Thu, 28 May 2020 13:16:51 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 01F8D3870842 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=FW0X3QA9+VaW612D0u50/tZYHN26X8HUgSmiJ3WMZqQeyAyM28sZuBKS+qGComHYoN/ZJiSsYXld1nU3zyADs9dmCfUY7loQvJqXl9eVeFdXTNKaIDjCDQ1s02X+deK8mV+CA1EvArpaR/Oc9SAWp/t8XJTuLtWaCUxgoQp1hnp4oWp3T7UKbQxAU7aA3sdiv/z7UG9NDB1saoDAlxNP88rltgBvgqRjT+X+v8GEhbJ94j3VCfW/NwDBLwVsr9DLVjWdc9qBRhuzRLIZuXerNm0XP0R3q7clyyLCT3OhuboXOZazhWdCGYBePRGKy5G7tRxGbBvMak2RLlOTTXb0TA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=UxOZs+53hOc4Y4NXDtyF0O9FCd9t6HMJ719D98Bmmp0=; 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X-Microsoft-Antispam-Message-Info: IqfCgS/cI0R9fnD7ETnvQvvWNr4TNY4ss7yS8sdtlIFhIp6vySpfmmPUfMBtcA0kdpBviqX+ewUoAHjJ9tXbcey7U67Id2GNjG7luFLj71V+wexWCGWvee2zLAUjH2JaK2NBp3PBcjFbdWGCnR2jsKqmccAS/VBNuxbIAUQRf3UXKYM2kMBrevwVUX1X0ZF3X4mr60R9c/tI9khGQtHNpfj0T85qekPItONc0gjt7nqPSj3QA4YMOgTckLNu+IyaOMJz8RxnBmG+fwL3vbTZtjhmZ48D+97cjjGeGvK/Q+BkRheYX8L2G+NqwOkU4YAIlkH6aL2ExuzDina+qls5S/NxV1d/ygw0L6dBvdbkCM8zPvGxiuZlu/mlvA4tGRC++nPAeQ7ilBKHIBqLze+OhHGWqMSh39qVvpAG6BTxPIs= X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:DM6PR04MB6075.namprd04.prod.outlook.com; PTR:; CAT:NONE; SFTY:; SFS:(4636009)(366004)(376002)(396003)(346002)(39860400002)(136003)(66946007)(786003)(2616005)(956004)(2906002)(16576012)(6486002)(5660300002)(316002)(186003)(83380400001)(36756003)(66556008)(66476007)(16526019)(52116002)(31686004)(478600001)(31696002)(53546011)(6916009)(75432002)(26005)(86362001)(8676002)(8936002)(43740500002)(460985005); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: tN7I4hgFOA7ZTRKinRPKeHkdbjZw7qqYFDWeqQZCksMj47PMDqdN10nvqINgL/cO+W5Z4mS0DD9TMexcVudSmhMHhm01HuE+eNYTwVRDdLHr+2QnaP0aO4uLGXl7pYY/r3XwFAzvBRJ3zvTfjh9V/OB+s+Aszv69cEv2Kj+lKYhQqc/WtqGWNxwJchjpN/6hzb8zlExAsq0numcO8Xdq8rg6d+LFOvnkGz1xAphTlKARRYn/4E0jdzaQlvErKr93IXinToSOIFkncqsktFHGekrE3wXq6Anfa7LPYWkB6gySU7J2R+eHM33jQENScxQgdK3tLdCbDI/NyS7C2OnzPXZ9F8iClnW7jEcPXLqnehpOfCpL8QZ7cIAwmay2gqFyA1hHBnQSi7i4BM+bTA1kDSy9NFEun6+PWPpQvveo15zVbPxQJG8oGEWznt0YoRBbjJy3HEY7jl6C6tKKeLjMOZuajAk2bbL7tqo51/02Wr0= X-OriginatorOrg: cornell.edu X-MS-Exchange-CrossTenant-Network-Message-Id: e5badd2a-7768-4204-6694-08d80309614e X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 May 2020 13:16:49.6651 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 5d7e4366-1b9b-45cf-8e79-b14b27df46e1 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: tr3lsBSzS1QlGoL/z5co67c2KRwlaQF7wGuNRWAII50Ptj7AMwW8/iqi6HM0WgV8Xy30ggesryjiG0mhgmF9kw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR04MB6810 X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00, BODY_8BITS, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, MSGID_FROM_MTA_HEADER, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP 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@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 May 2020 13:16:52 -0000 On 5/28/2020 4:12 AM, Дмитрий Есарев via Cygwin wrote: > 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 Thanks for the report. The problem isn't with mkfifo, it's with the permission information reported by ls. I did a bisection of the Cygwin development repo and found that the regression was introduced by the following commit: commit f36262d56ac78f04de147746ce4a85c6155e4a23 Author: Corinna Vinschen Date: Wed Jan 29 15:14:05 2020 +0100 Cygwin: stat: fix st_mode of fifos I'll take a look if Corinna doesn't get to it first. Ken