X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-2.6 required=5.0 tests=AWL,BAYES_00,KHOP_THREADED,RCVD_IN_DNSWL_NONE,RCVD_IN_HOSTKARMA_NO,T_RP_MATCHES_RCVD,UNPARSEABLE_RELAY X-Spam-Check-By: sourceware.org Message-ID: <4F9EC085.8070602@t-online.de> Date: Mon, 30 Apr 2012 18:40:37 +0200 From: Christian Franke User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20120312 Firefox/11.0 SeaMonkey/2.8 MIME-Version: 1.0 To: cygwin@cygwin.com Subject: Re: how to drop administrator privileges? References: <878vhiz0zw.fsf@Rainer.invalid> <4F99BF0F.9050807@cwilson.fastmail.fm> <8762cl67ym.fsf@Rainer.invalid> <20120427082014.GL25385@calimero.vinschen.de> In-Reply-To: <20120427082014.GL25385@calimero.vinschen.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm List-Id: 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 Corinna Vinschen wrote: > Fixing cygdrop. > > $ net helpmsg 122 > The data area passed to a system call is too small. > > A quick look into the sources shows that the maximum buffer size for > the group list returned by GetTokenInformation is wrongly computed: > > max_groups = 100; > char groups_buf[sizeof(DWORD) + max_groups * sizeof(SID_AND_ATTRIBUTES)]; > > The SID_AND_ATTRIBUTES structure only contains a pointer to the SID, so > what's missing is actual space for the SIDs. Oops. > But it would be better to leave that to the OS anyway: Thanks for the patch. Works as expected. Christian -- 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