X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:reply-to:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding; q=dns; s=default; b=TSXV7roWxyEO175Q O45Fw2n58/v/kA/gt6nICTQxt12DzMEvUM+uP3EW5/w8LwFWXTn5yZKL8LP85tdZ aCVPYInR5vE3jgjgqEwzN1lhRWbk+9YjDXjTlZvCSND0wMEIpnABuYePBdbBy0Zv QsV11UtV3ZUV+R8tmZn4h8rzs8I= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:message-id:date:from:reply-to:mime-version:to :subject:references:in-reply-to:content-type :content-transfer-encoding; s=default; bh=o4UkYeef/Y8lOc+73ino0c 9RmQU=; b=DK6NPlhI50/gd68CV7RJPl8dA+fXpAJIRoRSTeW9/MtHA9aLH5X++0 2BH1rSnYfKZ9DQfuxhOIAh3bi1ayz8JB+MxL3DLg5tRVPbfclWl2qv9oOb5cJDSK 7TTeYQjM3Go65ZeM5Zrvr0MvLdMl2uc/5kVW/yqZUt3cUXWalTVzw= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.8 required=5.0 tests=AWL,BAYES_40,RCVD_IN_DNSWL_NONE,RP_MATCHES_RCVD autolearn=ham version=3.3.2 X-HELO: csmail.cs.umass.edu Message-ID: <5357D3D8.1010707@cs.umass.edu> Date: Wed, 23 Apr 2014 10:53:12 -0400 From: Eliot Moss Reply-To: moss AT cs DOT umass DOT edu User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: Cygwin's writev() non-standard behavior References: <20140423140635 DOT 156430 AT gmx DOT com> <5357D176 DOT 4010203 AT redhat DOT com> In-Reply-To: <5357D176.4010203@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Using the link Eric Blake provided, I extract this from the POSIX specification for writev: "The iovcnt argument is valid if greater than 0 ..." So, while the man page is a little off, the response seems to be correct. You cold argue, and I might agree, that POSIX should have allowed a 0 and said writev should just return 0 in that case, but they didn't ... Regards -- Eliot Moss -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple