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RE: setsockopt SO_REUSEADDR
- From: Brian Ford <ford at vss dot fsi dot com>
- To: Dave Korn <dk at artimi dot com>
- Cc: cygwin at cygwin dot com
- Date: Tue, 5 Oct 2004 09:54:39 -0500
- Subject: RE: setsockopt SO_REUSEADDR
- References: <NUTMEGcvJY4WocwAQq10000027b@NUTMEG.CAM.ARTIMI.COM>
- Reply-to: cygwin at cygwin dot com
On Tue, 5 Oct 2004, Dave Korn wrote:
> > -----Original Message-----
> > From: cygwin-owner On Behalf Of Rainer Hochreiter
> > Sent: 05 October 2004 15:29
>
> > running the program listed below with argument 'reuse' under
> > cygwin and linux returns different results!
> >
> > from my point of view, the linux result is quite what i
> > expected, a bind() error 'Address already in use'.
>
> Huh? But that's exactly what SO_REUSEADDR is supposed to _prevent_
> from happening. That's why it's called _REUSE_addr, because it lets you
> *re-use* an addr, without getting an error message. Why would you
> expect setting it to stop you from reusing the address?
I was about to say the same thing, but...
http://www.unixguide.net/network/socketfaq/4.5.shtml
It is only supposed to reuse if the other socket is in the TIME_WAIT
state. I think that is what he is complaining about.
BTW to the OP, why are you printing the address of the socket function
out? I think you meant to print "s" instead of "socket"?
--
Brian Ford
Senior Realtime Software Engineer
VITAL - Visual Simulation Systems
FlightSafety International
the best safety device in any aircraft is a well-trained pilot...
--
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