From owner-freebsd-hackers  Mon Jan 24  7:21:35 2000
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From: "Yevmenkin, Maksim N, CSCIO" <myevmenkin@att.com>
To: "'freebsd-current@freebsd.org'" <freebsd-current@freebsd.org>
Cc: "'freebsd-hackers@freebsd.org'" <freebsd-hackers@freebsd.org>
Subject: BPF bug or not?
Date: Mon, 24 Jan 2000 10:21:16 -0500
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All,

I've just found that read from /dev/bpfX never return EAGAIN/EWOULDBLOCK.
It means that when you do a non blocking read and there is no data you will
always get 0.

Does it suppose work this way?

A non blocking read from pipe return EAGAIN/EWOULDBLOCK if there is no data
and
pipe was opened as O_RDWR, and 0 when pipe was opened as O_RDONLY.

Thanks,
emax


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