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freetds - Re: [freetds] connect(2) for UDP

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Subject: FreeTDS Development Group

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  • From: "Jackson, Craig (Gale)" <Craig.Jackson AT cengage.com>
  • To: FreeTDS Development Group <freetds AT lists.ibiblio.org>
  • Subject: Re: [freetds] connect(2) for UDP
  • Date: Thu, 18 Dec 2008 10:05:05 -0500

> > Recommend using bind() rather than connect() with UDP. With bind you
> > still get ICMP indiciations for fast failure when send()ing.
>
> More specifically..
>
> bind()
> sendto()
> select() for response
>
> The select will wake on either the expiration of the timer, data to be
> read or a failure hint if it turns out nothing was listening on the port
> from the previous sendto()

That sounds like a good plan. Bind() fixes the source address, which is all
that connect() really buys you.

Craig



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