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Article #29691

Re: OOB socket bit

#29691
From: Chano G�mez
Date: Fri, 07 Nov 1997 00:00
38 lines
1851 bytes
> Alguien sabe como se puede activar el bit de Out Of Band de los sockets
> ????

Parece que no se puede...

Mira lo que pone en la documentaci�n del JDK 1.1 sobre las caracter�sticas
que se dejaron por incluir en el paquete java.net:

"Fell by the wayside...

Some possible BSD options that are not supported in java:

     SO_KEEPALIVE:
     With this option, the OS repeatedly pings the connection's peer to
make sure it's still there. The
     conventional wisdom on this is that this functionality is best handled
at the application level. The Host
     Requirements RFC specifies a ping interval of 2 hours, which is not
practically useful.
     MSG_OOB:
     This is really an option one passes to a read() or recv() on a socket
to read data marked out-of-band
     or "urgent" if it present, before in-band data. If we include this we
should also include an option
     SO_OOBINLINE (below), but this doesn't seem to be needed. The real
complication against this is
     that we'd also have to provide a symmetrical way to write OOB data,
and again this hasn't been
     requested.
     SO_OOBINLINE:
     This option will inline OOB data, making it appear inline like
"normal" data. It would work in
     conjunction with MSG_OOB.
     RAW/ICMP SOCKETS:
     The main argument in favor of this one seemed to be so people could
write "ping" in java. Security
     nightmare. Must be root on UNIX machines."
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Message-ID: <346337AC.D6CA41A@ran.es>
Path: arc1-ca.pugleaf.net!unknown!not-for-mail
References: <3462F071.1602D12A@a01-unix.uc3m.es>

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From: "Chano G�mez" <chano@ran.es>
Subject: Re: OOB socket bit
Date: 1997/11/07
Message-ID: <346337AC.D6CA41A@ran.es>
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