DMARC-Filter: OpenDMARC Filter v1.4.2 delorie.com 5AFEiL6s467279 Authentication-Results: delorie.com; dmarc=pass (p=none dis=none) header.from=cygwin.com Authentication-Results: delorie.com; spf=pass smtp.mailfrom=cygwin.com DKIM-Filter: OpenDKIM Filter v2.11.0 delorie.com 5AFEiL6s467279 Authentication-Results: delorie.com; dkim=pass (1024-bit key, unprotected) header.d=cygwin.com header.i=@cygwin.com header.a=rsa-sha256 header.s=default header.b=qmWcodVX X-Recipient: archive-cygwin AT delorie DOT com DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org ABAF13858C78 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cygwin.com; s=default; t=1763217859; bh=Lyo4+mshb9k1iaAsx9rarmwWCDkC9L4i9WrznH9ItS8=; h=Date:Subject:To:References:In-Reply-To:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=qmWcodVX5BKSzDTF+vPYtJvV5YAIwgRjbf8UMF9TxI5SPL1FNSdiAZ1VGoDwnX1tU JP2MooQL3aztAYgSgBnL6eE3tINCxjX+mr81P3yYmVG7mdwUJb1F297XkQmow0JVzU TUglqx2hoTkX0w6tbEPXTQAHaL6nzTG094D93WXg= X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 82E393858D1E ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 82E393858D1E ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1763217799; cv=none; b=Lutg5Vbd6/V2Uzu+/DIJZqdFbQ9bfa1rpr7gtgcv+jwXsehr4x4sUMvqOglf2tKgO0UmM8eBg2DcmQVr6AEMD64yj/Fh3iqrrGe9djRXZJfG1Vxxn9npgvURbG6Pw+rrYWysqy3DarccW5OqoYXD1ys1XvgAYKtSzcCSPg4YNw8= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1763217799; c=relaxed/simple; bh=D3UIEIzBKFNlwcF2eo6VYN3WdTLygH0Glrvq3BqW9EA=; h=DKIM-Signature:Message-ID:Date:MIME-Version:Subject:To:From; b=oa6ZsKOHQz6o0Om8Q1za1Z42+Hy3IBQjBYPAlDXnaT1dgtdbDpdQtNWR4hXMAWSADDs4AolSh4nOTCgR/buBexFA/ygIrnsJEDOT/6U6X3U/vv83pYB8iP4eRs67wnJqUhCXW3rDP0SvGedol7XAnGBgnOebcasrTBkUFD7+VoU= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 82E393858D1E X-UI-Sender-Class: 55c96926-9e95-11ee-ae09-1f7a4046a0f6 Message-ID: <0a1391ac-adba-4420-b581-ccdb3842109a@towo.net> Date: Sat, 15 Nov 2025 15:43:11 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Cygwin API to atomically create a new file with an ACL? 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charset="utf-8"; Format="flowed" Errors-To: cygwin-bounces~archive-cygwin=delorie DOT com AT cygwin DOT com Sender: "Cygwin" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id 5AFEiL6s467279 Am 15.11.2025 um 13:58 schrieb Aurélien Couderc via Cygwin: > Does Cygwin have an API to atomically create a new file with an ACL? > > Aurélien I don't think there's such an API in POSIX. Instead it's the purpose of the directory default ACL entries to support this. While the manual pages of setfacl/getfacl are lousy, a fairly lucid description is in 7.6. POSIX Access Control Lists | Administration Guide | Red Hat Gluster Storage | 3 | Red Hat Documentation . Thomas -- 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