Bug#752237: libc0.3: send() asked to transmit 0 chars still triggers recv() on Hurd

To: Samuel Thibault <samuel.thibault@gnu.org>
Cc: Richard Braun <rbraun@sceen.net>, bug-hurd@gnu.org, 752237@bugs.debian.org
Subject: Bug#752237: libc0.3: send() asked to transmit 0 chars still triggers recv() on Hurd
From: Roland McGrath <roland@hack.frob.com>
Date: Sat, 28 Jun 2014 12:05:51 -0700 (PDT)
Message-id: <[🔎] 20140628190551.308052C398F@topped-with-meat.com>
Reply-to: Roland McGrath <roland@hack.frob.com>, 752237@bugs.debian.org
In-reply-to: Samuel Thibault's message of Saturday, 28 June 2014 12:09:15 +0200 <[🔎] 20140628100915.GZ6351@type.youpi.perso.aquilenet.fr>
References: <[🔎] 53A58F1E.8020902@googlemail.com> <[🔎] 20140628084856.GA24118@dalaran.sceen.net> <[🔎] 20140628095142.GA7179@dalaran.sceen.net> <[🔎] 20140628100915.GZ6351@type.youpi.perso.aquilenet.fr>

I'm inclined to say libc is not the right place to fix this.  If the user
says write/send 0, what that means should be up to the io server to
decide--even if all the servers we have today are intending to implement
the same POSIX semantics.

Reply to:

References:
- Bug#752237: libc0.3: send() asked to transmit 0 chars still triggers recv() on Hurd
  - From: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com>
- Bug#752237: libc0.3: send() asked to transmit 0 chars still triggers recv() on Hurd
  - From: Richard Braun <rbraun@sceen.net>
- Bug#752237: libc0.3: send() asked to transmit 0 chars still triggers recv() on Hurd
  - From: Richard Braun <rbraun@sceen.net>
- Bug#752237: libc0.3: send() asked to transmit 0 chars still triggers recv() on Hurd
  - From: Samuel Thibault <samuel.thibault@gnu.org>

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