From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM02-CY1-obe.outbound.protection.outlook.com (mail-eopbgr760090.outbound.protection.outlook.com [40.107.76.90]) by sourceware.org (Postfix) with ESMTPS id 645913858C27 for ; Sat, 10 Oct 2020 19:41:30 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 645913858C27 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=HxKexTKaUqRFNRYCY0DRYP/6x0ZfMDesW5EHx4PqJFQyA44omOccymJLiapnMo0dUJbSFFt8BS7EfmZmwQiMEubmoEEipmteeQQgIXsbSDO5d1ZrqP8cq36zTSbvSJATMn4sTd+XlAMbuzrhuDGt/McENFSHHkHgFOh5ncerndlQhHkcDWShPUn8GSbmpNI43C9YeBRL5oXOB52Hnm1sYzzgn1BQrvl2+TvXnqAM1yHwkdHO3ABgTEVU/g1cBjEYJdHU6JSrSc1Y0WGetUH6VaFiDyOZzM+x9oGnF5hM4a37/RoOhLEfqi2u5ISjavT4v0dRcC5qW0unBrDVoK8Ueg== 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=zIJlWt0SiI7BoB5YvGcrZpHrCST+1CGn3wZ9FgnhMOg=; b=nNBEq6oTeV75yHmBs+ISF6bsmJuvf9/EiyuvBu1npwLyipyfoS8TN6hVNUUCCWNxi7hDxhU6IkuJoIhggSO20z25JAIevNVbGc6ti+hH3ddVteIACdJ/HSktRQY5p//CezIqpvvwCJ8oedf0GUgMMuZ3M0JmHwbtDnpxPqTjLMcdhJrL3fh1FKyBqud9zx/4pBFTA/zowDj6sCuYtig7M1mthEbDZIsaBvHsX3OG3v9fsyvNKpjHIglnDh8A79egeScqFJoGfKOMjNaFeEq6ztkfCDdj7V3kTxKu9X7tN+uhI4/FDyn3p/sbaRoDn7jjdljaIoLWOUC5bzkIiFOdnA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=cornell.edu; dmarc=pass action=none header.from=cornell.edu; dkim=pass header.d=cornell.edu; arc=none Received: from MN2PR04MB6176.namprd04.prod.outlook.com (2603:10b6:208:e3::13) by MN2PR04MB5534.namprd04.prod.outlook.com (2603:10b6:208:e6::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3455.28; Sat, 10 Oct 2020 19:41:29 +0000 Received: from MN2PR04MB6176.namprd04.prod.outlook.com ([fe80::c144:d206:c369:af44]) by MN2PR04MB6176.namprd04.prod.outlook.com ([fe80::c144:d206:c369:af44%7]) with mapi id 15.20.3455.028; Sat, 10 Oct 2020 19:41:28 +0000 Subject: Re: chmod issue on 3.1.7. To: "Kaz Kylheku (Cygwin)" <743-406-3965@kylheku.com>, cygwin@cygwin.com References: <7cb8ee6c7e9a36a3c1ee73def342bcb6@mail.kylheku.com> From: Ken Brown Message-ID: Date: Sat, 10 Oct 2020 15:41:28 -0400 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 In-Reply-To: <7cb8ee6c7e9a36a3c1ee73def342bcb6@mail.kylheku.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-Originating-IP: [68.175.129.7] X-ClientProxiedBy: MN2PR16CA0001.namprd16.prod.outlook.com (2603:10b6:208:134::14) To MN2PR04MB6176.namprd04.prod.outlook.com (2603:10b6:208:e3::13) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [192.168.0.17] (68.175.129.7) by MN2PR16CA0001.namprd16.prod.outlook.com (2603:10b6:208:134::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3455.21 via Frontend Transport; Sat, 10 Oct 2020 19:41:28 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 5316bfe2-9507-4ae4-5ba5-08d86d547b68 X-MS-TrafficTypeDiagnostic: MN2PR04MB5534: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:7219; 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DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: cornell.edu X-MS-Exchange-CrossTenant-Network-Message-Id: 5316bfe2-9507-4ae4-5ba5-08d86d547b68 X-MS-Exchange-CrossTenant-AuthSource: MN2PR04MB6176.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Oct 2020 19:41:28.9151 (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: 2vQZh7B0aJiTtsnfkGfWxMfuCpdXiKL1SXgcPiCAVd11O5l+wAt+qvLYwHv5Odu/6PvxGQOy+HU32TDvMyI/XA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR04MB5534 X-Spam-Status: No, score=-0.1 required=5.0 tests=BAYES_00, DKIM_INVALID, DKIM_SIGNED, JMQ_SPF_NEUTRAL, KAM_DMARC_STATUS, MSGID_FROM_MTA_HEADER, NICE_REPLY_A, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_PASS, TXREP autolearn=no 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: Sat, 10 Oct 2020 19:41:31 -0000 On 10/10/2020 12:32 PM, Kaz Kylheku (Cygwin) via Cygwin wrote: > Hi all, > > Running this Cygwin on a Windows 10 system: > >   0:DESKTOP-K8055OB:~$ uname -a >   CYGWIN_NT-10.0-WOW DESKTOP-K8055OB 3.1.7(0.340/5/3) 2020-08-22 19:03 i686 Cygwi > > When a file is created, and permissions set as follows: > >   0:DESKTOP-K8055OB:~$ touch tempfile >   0:DESKTOP-K8055OB:~$ chmod 03777 tempfile >   0:DESKTOP-K8055OB:~$ ls -l tempfile >   -rwsrwsrwt 1 kaz kaz 0 Oct 10 08:59 tempfile > > Then "chmod u=" is not able to clear the owner's permissions to nothing: > >   0:DESKTOP-K8055OB:~$ chmod u= tempfile >   0:DESKTOP-K8055OB:~$ ls -l tempfile >   -rwxrwsrwt 1 kaz kaz 0 Oct 10 08:59 tempfile > > As you can see, it has no effect. The expected value is ----rwsrwt. > > I tried both with 64 and 32 bit Cygwin: same deal. > > This is not a problem with the chmod utility.  I ran into this as a failing > test case against a chmod library function in a programming language. > > http://www.kylheku.com/cgit/txr/tree/tests/018/chmod.tl > > The test cases pass until the "u=", which fails in the same way. > This does not use the chmod utility. > > It's an issue with the chmod system call. > > This used to work on my older Cygwin installation, which was around 2.5. FWIW, I can't reproduce this on my system: $ uname -a CYGWIN_NT-10.0-WOW XXX 3.1.7(0.340/5/3) 2020-08-22 19:03 i686 Cygwin $ touch tempfile $ ls -l tempfile -rw-r--r-- 1 kbrown None 0 2020-10-10 15:16 tempfile $ chmod 03777 tempfile $ ls -l tempfile -rwxrwsrwt 1 kbrown None 0 2020-10-10 15:16 tempfile $ chmod u= tempfile $ ls -l tempfile ----rwsrwt 1 kbrown None 0 2020-10-10 15:16 tempfile Ken