Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm 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 Date: Fri, 29 Mar 2002 19:16:52 -0500 From: Christopher Faylor To: cygwin@cygwin.com Subject: Re: sendto bug Message-ID: <20020330001652.GB4668@redhat.com> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <20020330001329.GA7168@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020330001329.GA7168@redhat.com> User-Agent: Mutt/1.3.23.1i On Fri, Mar 29, 2002 at 07:13:29PM -0500, Christopher Faylor wrote: >On Fri, Mar 29, 2002 at 03:36:23PM -0500, David E Euresti wrote: >> >>Actually the Single UNIX Specification says: >> >> If the socket is connectionless-mode, the message will be sent to >> the address specified by dest_addr. If the socket is >> connection-mode, dest_addr is ignored. >> >>And since sendto calls either WSASendTo or winsock 1 sendTo that state: >> >> Even if the connectionless socket has been previously connected >> using the connect function to a specific address, lpTo overrides >> the destination address for that particular datagram only. On a >> connection-oriented socket, the lpTo and iToLen parameters are >> ignored; in this case, the WSASendTo is equivalent to WSASend. >> >>Therefore there should be no harm in passing in the NULL value to sendto. > >I admit that I did miss that part (obviously) but I don't think that it >follows that dest_addr can always be NULL. It looks like the value can >be NULL only if the socket is not connection-less. Otherwise, it should \/ is >be checked for validity. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Bug reporting: http://cygwin.com/bugs.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/