Re: xinetd client disconnects

On Thu, 30 Jun 2011 02:26:15 +0100, Tarim wrote:

Martin Gregorie wrote:
> You get a zero response from recv() when the client closes the
> socket.

You don't get to see the socket itself with an xinetd server as
xinetd wraps it all up and hands it to the server on stdin and stdout -
which is very handy if you don't want to do anything fancy.

I thought that too, so I double checked my memory with reference to some
code I wrote a while back.

It was written for xinetd and run under it to check what needed to be
done to write a simple, reliable start-on-demand server. It uses
recv(0, &buff, lth) to read messages, so its sucking on fd0 as though its
a socket. This works, as I said, with recv() returning zero when the
client closes the connector. It uses essentially the same trick to send
replies calling send(1, buff, lth) to push stuff down fd1.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |
.

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