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Re: sending an empty UDP packet.
- From: Corinna Vinschen <corinna-cygwin at cygwin dot com>
- To: 'the sound of one packet flapping' <cygwin-talk at cygwin dot com>
- Date: Fri, 30 Jun 2006 15:33:57 +0200
- Subject: Re: sending an empty UDP packet.
- References: <20060630110904.GS18873@calimero.vinschen.de> <000a01c69c48$f81482f0$a501a8c0@CAM.ARTIMI.COM>
- Reply-to: cygwin-talk at cygwin dot com
- Reply-to: The Cygwin-Talk Maiming List <cygwin-talk at cygwin dot com>
On Jun 30 14:27, Dave Korn wrote:
> On 30 June 2006 12:09, Corinna Vinschen wrote:
>
> > On Jun 30 19:18, Tanaka Akira wrote:
> >> Hi. I have a trouble to send an empty UDP packet.
> >
> > Thanks for the bug report and especially the testcase. It's incredible
> > but the check for a zero length packet has been introduced in 2002, 4
> > years ago, and nobody has ever complained that it's wrong. Wow. Almost
> > embarrassing.
> >
> > I've fixed that in current CVS. Check the next snapshot from
> > http://cygwin.com/snapshots or wait for 1.5.20, which is really
> > due soon now.
>
> Sending no data with unreliable delivery (of that no data) is a bit too zen
> for most, I guess ...
Agreed. I'm still scratching my head what sending an empty UDP packet
is good for, but it's perfectly valid.
Corinna