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From: Robert Pluim <rpluim@gmail.com>
To: Eli Zaretskii <eliz@gnu.org>
Cc: 62990@debbugs.gnu.org, mail@vasilij.de
Subject: bug#62990: 30.0.50; UDP server closes connection upon receiving an empty packet
Date: Wed, 26 Apr 2023 16:27:48 +0200	[thread overview]
Message-ID: <87bkjasopn.fsf@gmail.com> (raw)
In-Reply-To: <83jzxyu90c.fsf@gnu.org> (Eli Zaretskii's message of "Wed, 26 Apr 2023 15:24:03 +0300")

>>>>> On Wed, 26 Apr 2023 15:24:03 +0300, Eli Zaretskii <eliz@gnu.org> said:
    >> 
    >> I guess we could, but if the application asks us to send an empty
    >> packet we should do it.

    Eli> I didn't say that the default behavior should be that, I just asked
    Eli> whether it is conceivable that someone, somewhere could actually rely
    Eli> on the semi-buggy behavior, whereby empty packets aren't sent?

I canʼt conceive of it. If it ever does happen the fix is easy: check
the length of the message before sending it.

    >> 
    >> ie the UDP process is still running and can still receive messages

    Eli> And no one could ever expect that?  IOW, is this behavior obviously
    Eli> wrong?

Yes. The other end has sent a valid UDP packet, and we react by
closing the connection.

Robert
-- 





  reply	other threads:[~2023-04-26 14:27 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-04-21 10:36 bug#62990: 30.0.50; UDP server closes connection upon receiving an empty packet Vasilij Schneidermann
2023-04-24  8:51 ` Robert Pluim
2023-04-24 21:04   ` Vasilij Schneidermann
2023-04-25  8:07     ` Robert Pluim
2023-04-26  9:14       ` Robert Pluim
2023-04-26 10:30         ` Eli Zaretskii
2023-04-26 10:35           ` Robert Pluim
2023-04-26 10:38             ` Eli Zaretskii
2023-04-26 11:47               ` Robert Pluim
2023-04-26 12:24                 ` Eli Zaretskii
2023-04-26 14:27                   ` Robert Pluim [this message]
2023-04-26 10:58             ` Vasilij Schneidermann
2023-04-26 10:56       ` Vasilij Schneidermann
2023-04-26 11:50         ` Robert Pluim
2023-04-26 14:31           ` Robert Pluim
2024-03-09 13:40             ` Vasilij Schneidermann

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