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From: Filipe Cabecinhas <filcab@gmail.com>
To: "linux-os (Dick Johnson)" <linux-os@analogic.com>
Cc: Linux kernel <linux-kernel@vger.kernel.org>,
	Nuno Lopes <ncpl@mega.ist.utl.pt>,
	Renato Crissstomo <racc@mega.ist.utl.pt>
Subject: Re: Possible problem in fcntl
Date: Tue, 13 Dec 2005 20:42:49 +0000	[thread overview]
Message-ID: <e46c534c0512131242n3ad87709kfd0fc9238137f897@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.61.0512131337240.8529@chaos.analogic.com>

> How do you know what wget did after the connection was refused?
> Didn't it close its socket when returning to the shell?

If we have the call to fcntl, the following happens:
Telnet: SYN
Server: SYN, ACK
T: ACK
S: FIN, ACK
T: FIN, ACK
S: ACK

There was no data exchanged. It just accepted the connection, and then
finished it.

Without the call to fcntl everything goes normally:
T: SYN
S: SYN, ACK
T: ACK
T: PSH, ACK (HTTP request)
S: ACK
S: PSH, ACK (HTTP header)
T: ACK
S: PSH, ACK (data)
T: ACK
S: FIN, ACK
T: ACK
T: FIN, ACK
S: ACK

Thanks in advance,

Filipe Cabecinhas

      reply	other threads:[~2005-12-13 20:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-12-13 15:56 Possible problem in fcntl Filipe Cabecinhas
2005-12-13 17:50 ` linux-os (Dick Johnson)
2005-12-13 18:30   ` Filipe Cabecinhas
2005-12-13 18:46     ` linux-os (Dick Johnson)
2005-12-13 20:42       ` Filipe Cabecinhas [this message]

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