X-Recipient: archive-cygwin@delorie.com X-Spam-Check-By: sourceware.org Date: Mon, 21 Sep 2009 18:23:14 +0200 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: Cygwin 1.7 message queues - permission denied error still exists Message-ID: <20090921162314.GJ20981@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <1DC35497-BBA8-4F50-9DB3-3C5EFFCD17BD@semanchuk.com> <20090913162218.GA19315@ednor.casa.cgf.cx> <4318136D-5D7A-4DF2-B86D-6025B246DA7D@semanchuk.com> <416096c60909131015v5e4b6021wffe114209827930d@mail.gmail.com> <34E2DEE0-9186-4A56-8A2E-B4BE99278FA7@semanchuk.com> <20090913203240.GA4166@ednor.casa.cgf.cx> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20090913203240.GA4166@ednor.casa.cgf.cx> User-Agent: Mutt/1.5.19 (2009-02-20) Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com On Sep 13 16:32, Christopher Faylor wrote: > I just modified the test case from the original report: > > >>>cut here<<< > #include > #include > #include > #include > > main() > { > int flags = O_RDWR | O_NONBLOCK | O_CREAT | O_EXCL; > struct mq_attr attr; > char queue[80]; > char *e; > mode_t mode = strtoul("644", &e, 8); > mqd_t mqd; > > > memset((void *) &attr, 0, sizeof(struct mq_attr)); > attr.mq_maxmsg = (long) 10; > attr.mq_msgsize = (long) 24; > strcpy(queue, "/queue0"); > mq_unlink(queue); > mqd = mq_open(queue, flags, mode, &attr); > if (mqd < 0) > perror("mq_open 1"); > strcpy(queue, "/queue1"); > mq_unlink(queue); > mqd = mq_open(queue, flags, mode, &attr); // ALWAYS FAIL HERE WITH "Permission denied" > if (mqd < 0) > perror("mq_open 2"); > } > >>>cut here<<< > > It behaves the same on both linux and cygwin. > > Make sure that you've read: > > http://cygwin.com/faq/faq-nochunks.html#faq.programming.ipc > > And have cygserver running properly. Just FYI, running Cygserver is required only for XSI IPC. The POSIX IPC functions are supposed to work without Cygserver. Corinna -- Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Project Co-Leader cygwin AT cygwin DOT com Red Hat -- 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