From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from NAM10-MW2-obe.outbound.protection.outlook.com (mail-mw2nam10on2104.outbound.protection.outlook.com [40.107.94.104]) by sourceware.org (Postfix) with ESMTPS id D65DB3857811 for ; Sat, 30 Jan 2021 20:58:35 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org D65DB3857811 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=djMagGUMmlokjm84zgezEkspw9bdRZ2kfs/ysVuAfWiicAy4u9lfRuL7tJ1/Y2zpGo1QyOzZ18wBk2fhGm07qSa5wGAK88quQueOe2wze1PgIOANx7w2veYqQ4Ioy5Oj3SkW7EWaglpN9u68+2oAsAJY/ztvAZdk9SxuYQ/Yzr9hlLWfH82RafNnuuuVCeJFr9B2khndHJ9pxsH9OxhkC3U1TxlPbZq7xEbjdfEsY0wVZkHaaSghxR1UYBAtZHvkHAyjqTrhDXyPcPsYBYi+XLQR9NuQkN7DdH1uHUKGHpcNtQg4uzNibxSfjAJobnASHuQJ3Ru6LYnywYhKFh/o1w== 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=8k3J8hLpnY1NkgMJBCjBxd4RQe62MezpEx6i1Ow/n3A=; 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DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData: =?Windows-1252?Q?qRGjFe3wtsAS+etc6MGZhfJTWeoOnVp4/FlCOz7XAXS2x0olLRBMLHhE?= =?Windows-1252?Q?SmdraQJrWwIQWju+Iasq221gOzxbM0EbNOdfvVDPZZn7vXm0UxsMgEsA?= =?Windows-1252?Q?NqeqLmzzJk9omjoaMCrv7X23PRtRLaOrUkBqciOqwCURgnxJpsiwjYq/?= =?Windows-1252?Q?Cep5dV/AEUNXGRN9H41/jTYEZ0D1MBHMyFE0woCqNyoX2FpxFKrA00ee?= =?Windows-1252?Q?NilEYeZXqMDLvnQPrxRcjbZ0PBDPxA0CZbMLWlanZ1EdiuH+mPHXl+zV?= =?Windows-1252?Q?LfG9CBctLUd87cKC9Fb/dQf2MjDTyGrOzx0nJUg19sX+AFSBI9QpFnOH?= =?Windows-1252?Q?IrSnmH1CKh+CoWK+XjdTN2luBwVk5Od5FUe6U1341B95sp580/Cqqz24?= =?Windows-1252?Q?pQOwvg2D/vSvrC21RqNnIvxKzzBk8CK9ZO6dL2eM35dnsDKDK8Xug5GI?= =?Windows-1252?Q?IrC+/V5nxf7illDMBNY2sEIwYskcZuVchc56q8OAlSAWSjlJWBdCTYMh?= =?Windows-1252?Q?L79hxp6zRhrFoyycrPkFB6qwXOFrhSYVS+kJ55U6akhIl+dFNkct6V1W?= =?Windows-1252?Q?Xpz921kWHoOi2wb/e6TcnK+JE/c2sEXW2TZN/UFG3Uxs7zoosTYp0PKg?= =?Windows-1252?Q?I4fRYNG1JN9wx56aoR1VqkwJ2rNd5fDKwhZRPkaBl69QwCysCzUwxA2x?= =?Windows-1252?Q?tf9ypB0cCKoLHImvNlM7gQ4I8hILlW4429TTGJaUGxsbO9xSWBb3P2Nk?= =?Windows-1252?Q?eWNgbES63fNJRljZR/kmr7Xa3x/Xk+cddZ+drcOp2JhjzaVnNTEtdgO9?= =?Windows-1252?Q?2fEW4+xSVRbvxDOh4iUI9UUD8evGsrowkoohAb4evIypfe4jJ9QqYrJX?= =?Windows-1252?Q?AiNgHsnxCOCZRAN5V1/97F/FlYd48vCf0c7oRxg5+JsS/sCbkobGWGvU?= =?Windows-1252?Q?U22+yVK5jgoJl0jBPNebG1Qh1CAA1/Nur12/0KAKniXf7RQ1PGUxQOMc?= =?Windows-1252?Q?fYdY2HKhBGJcq8xp6VpOJAdB6bURbxsJziN+v7Om61Tq/use2i5cknqL?= =?Windows-1252?Q?Sx55qjrBkCpAVgBu+63c2o57PHHUr3918z3YaVR3Z5rmLdHvaVQgVvzf?= =?Windows-1252?Q?y1raMDbnhClR+ZnT1q4CvA0T?= X-OriginatorOrg: cornell.edu X-MS-Exchange-CrossTenant-Network-Message-Id: 9a4683cf-d21b-4459-c488-08d8c561cd46 X-MS-Exchange-CrossTenant-AuthSource: BN7PR04MB4388.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Jan 2021 20:58:32.0841 (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: dlahnRN0iM/KLH5ZVg6+yT8OxRfLKBwPucYlMLPoefXrkWjOH9MHRjYcaY9Gd/Q12TuO4GFt2gROg46pswCORw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN7PR04MB3843 X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, MSGID_FROM_MTA_HEADER, NICE_REPLY_A, 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-patches@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: Cygwin core component patch submission and discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 30 Jan 2021 20:58:37 -0000 On 1/30/2021 11:34 AM, Ken Brown via Cygwin-patches wrote: > This patch attempts to fix the problem reported here: > > https://cygwin.com/pipermail/cygwin/2020-September/246362.html > > See also the followup here: > > https://cygwin.com/pipermail/cygwin/2021-January/247666.html > > The problem, briefly, is that on certain recent versions of Windows > 10, including 2004 but not 1909, native Windows AF_UNIX sockets are > represented by reparse points that Cygwin doesn't recognize. As a > result, tools like 'ls' and 'rm' don't work. > > I will get access to a machine running 2004 so I can test my patch, > but I'm posting it now in case someone else wants to test it before I > can. To test it, compile and run the program native_unix_socket.c > appended below, and then try to remove the file foo.sock that it > creates. This should fail on W10 2004 without my patch, but it should > succeed like this with the patch: I've just tested on W10 20H2. In Cygwin 3.1.7 I see the problem: $ ./native_unix_socket.exe getsockname works fam = 1, len = 11 offsetof clen = 9 strlen = 8 name = foo.sock $ ls -l foo.sock -rw-r----- 1 Unknown+User Unknown+Group 0 2021-01-30 15:51 foo.sock $ rm foo.sock rm: remove write-protected regular empty file 'foo.sock'? y rm: cannot remove 'foo.sock': Permission denied After I apply the patch, all is well: $ ./native_unix_socket.exe getsockname works fam = 1, len = 11 offsetof clen = 9 strlen = 8 name = foo.sock $ ls -l foo.sock -rwxr-xr-x 1 kbrown None 0 2021-01-30 15:52 foo.sock* $ rm foo.sock $ ls -l foo.sock ls: cannot access 'foo.sock': No such file or directory Ken