From owner-freebsd-hackers@FreeBSD.ORG  Tue Feb  6 20:16:51 2007
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Date: Tue, 6 Feb 2007 23:16:49 +0300 (MSK)
From: "Andrew N. Below" <defan@zenon.net>
To: freebsd-hackers@freebsd.org
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Organization: Zenon N.S.P.
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Subject: socket descriptor returned from socket()
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Hello.

Could 0 (zero) be a valid socket descriptor?

man 2 socket:

RETURN VALUES
      A -1 is returned if an error occurs, otherwise the return value is a
      descriptor referencing the socket.

I have some troubles with xinetd (2.3.14) - first service
in config file with proto=tcp, socket_type=stream and wait=yes
fail to start (fcntl returns "Bad file descriptor" error).

--
Andrew N. Below