From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 108535 invoked by alias); 27 Feb 2020 22:25:12 -0000 Mailing-List: contact cygwin-developers-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-developers-owner@cygwin.com Mail-Followup-To: cygwin-developers@cygwin.com Received: (qmail 108526 invoked by uid 89); 27 Feb 2020 22:25:12 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-3.2 required=5.0 tests=AWL,BAYES_00,MSGID_FROM_MTA_HEADER,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.1 spammy= X-HELO: NAM10-DM6-obe.outbound.protection.outlook.com Received: from mail-dm6nam10on2104.outbound.protection.outlook.com (HELO NAM10-DM6-obe.outbound.protection.outlook.com) (40.107.93.104) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Thu, 27 Feb 2020 22:25:10 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=aUJuBgSm0ZNuHh63AaRDo2GeZj6MCyJy3j3LoF8Bfu6B3zuEOEkgfTPDo2t7+fqPjP7bcjn/8N82rYdyiMkNRHEH2/HigBy+OkFGmSt9NVrrs3eDt8kAG0YPPiEuspbZgScl7OYojSgBpsPgQ4XYTAUvuTwMRRUeO8hta6wFvunPRXIGbc+o8E6CKHA2GSYS8hLnJoVp2hHBsh0o+N/BlhgJTMGZFYDlK4msYibEYummyrKWnVosPruYwXdd/0HgCyKQpSdNJLRE36z0d85+1UGlhNQy3Gek5NwioXmoYEIYy0idlACzL0DGS1Mo3Ob1QdWwVinJRQ4U9UTX5Pqn0w== 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=xVkuE2h2O/HOS6swquVjlBzdRpiPrSNRSRSeZZuknLg=; b=HNK1UTgL1syukxe6eS5v5infcDAV5JqH0DHdbW46O8ptIMxzLJZ4nCO2Ec6KXrwM2vLg1HKeuC1XdfEkZjzldywFwb9uWvJ0yR7GFl5rh4JxVHU9GpDihKXs2xwnNqDEDvCFWVbLRrz0bW2j6gQbNZIH2UcBCCbNQYYUIZ9JeDcoORkpXNpsybdGBv+9t+8f4PA/3WeLgbZrbPBSiaxKANBvUOi3jxr7zLJTZcNIGqyZkV5e4gcWudJqWiXt474NHoUnc+6dEWaHy1TESR1tXydqGDALRQtWqnTMg54IaHlH56rQ7M9hxyr4L55UIEXBwhlHX53Ly1PBhxeD4tdwKQ== 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 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cornell.edu; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=xVkuE2h2O/HOS6swquVjlBzdRpiPrSNRSRSeZZuknLg=; b=LU3J2TvQgkHpZipvouvE62mcM8120RsacuP7YyV2WRI6pWbo48yi3abcwSfj+j6dPpyy3o874fDd1SKR8HtVLJ+edXZWhTuNpN+djqPN+Rv1b3ceODdXBZGVPjC+3dzyC7BR8cvtNjJ/tRPKGNUi6DP+b9UlFw9YrrL0BKw3M+s= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=kbrown@cornell.edu; Received: from DM6PR04MB5738.namprd04.prod.outlook.com (2603:10b6:5:16d::17) by DM6PR04MB6635.namprd04.prod.outlook.com (2603:10b6:5:242::13) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2772.15; Thu, 27 Feb 2020 22:25:09 +0000 Received: from DM6PR04MB5738.namprd04.prod.outlook.com ([fe80::b9a2:bfae:2bab:2bbf]) by DM6PR04MB5738.namprd04.prod.outlook.com ([fe80::b9a2:bfae:2bab:2bbf%4]) with mapi id 15.20.2772.012; Thu, 27 Feb 2020 22:25:09 +0000 To: cygwin-devel From: Ken Brown Subject: fixup_after_fork (NULL) Message-ID: Date: Thu, 27 Feb 2020 22:25:00 -0000 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Return-Path: kbrown@cornell.edu MIME-Version: 1.0 Received: from [192.168.0.17] (68.175.129.7) by BL0PR02CA0035.namprd02.prod.outlook.com (2603:10b6:207:3c::48) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2772.14 via Frontend Transport; Thu, 27 Feb 2020 22:25:08 +0000 X-MS-Oob-TLC-OOBClassifiers: OLM:2733; Received-SPF: None (protection.outlook.com: cornell.edu does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-MessageData: oeN89WoJgXTl/AwDAG6wkhIdb9F2vW8e1vCEoJ4AiZ5SVZQqNnzGDW/TCnFOVgymUh36+TtaKqfKNpy1AAMQyxi8dxR4mUdVMvrytqD6IYZvgyF8/f5rJnJtnzKBRuPcEQYUs+y/hPC5ixAwbVkzsg== X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: alMp5mUBCiX9TiKSBFD76kY2GwYhvCi0VPU44SdVkg0MsPmUYA/pVn1Keq+rl4Kr2tCE0MgSy0fnp2Kw8WAQOQ== X-IsSubscribed: yes X-SW-Source: 2020-02/txt/msg00001.txt.bz2 fhandler_socket_wsock::fixup_after_exec and fhandler_socket_unix::fixup_after_exec call fixup_after_fork (NULL), which would seem to lead to calls to DuplicateHandle with first argument NULL. I can't find any documentation that says this is legal. What do these calls do? Ken