HP3000-L Archives

June 1997, Week 3

HP3000-L@RAVEN.UTC.EDU
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Subject:
Re: another POSIX smoothing issue - connect()/send() for datagrams
From:
Mark Bixby <[log in to unmask]>
Reply To:
[log in to unmask][log in to unmask], 19 Jun 1997 10:30:51 -0600665_- Perhaps because they don't live in the Bay Area? If I was living there I would love to attend.

Good luck. I hope your attendance goes up.

-----Original Message-----
From: Scott Hirsh [SMTP:[log in to unmask]]
Sent: Wednesday, June 18, 1997 6:07 PM
To: [log in to unmask]
Subject: SIGSYSMAN Meeting: No Interest?

Attention HP3000 System Managers!

The June 26 meeting in Oakland has generated only 8 confirmations, where
in the past we would have at least 25 by now. Is this another sign that
the HP3000 is near death? Clearly, this kind of response will be the end
of quarterly meetings as we've known them. [...]42_19Jun199710:30:[log in to unmask]
Date:
Mon, 16 Jun 1997 14:16:08 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (26 lines) 
Lars Appel writes:
>
> At 17:31 13.06.1997 -0700, you wrote:
> >The BIND function res_send() attempts to connect() and send() to a datagram
> >socket, something that is documented as unimplemented for MPE.  connect() and
> >send() should be enhanced to operate against datagram sockets in addition to
> >stream sockets.
>
> I'm not an expert on sockets, but I always was under the impression that UDP
> or datagram sockets were intended for connection-less communication i.e. kind
> of fire-and-forget instead of dial-connect-and-chat...
>
> Any enlightenment available on this?

That was my impression too until I saw the BIND code.

The HPUX man page for connect(2) says it is supported for SOCK_DGRAM sockets,
that it returns immediately, and that it ensures that datagrams are only
accepted from the target remote address instead of from any old imposter.
--
Mark Bixby                      E-mail: [log in to unmask]
Coast Community College Dist.   Web: http://www.cccd.edu/~markb/
District Information Services   1370 Adams Ave, Costa Mesa, CA, USA 92626-5429
Technical Support               +1 714 438-4647
"You can tune a file system, but you can't tune a fish." - tunefs(1M)

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