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Date:      Wed, 30 Oct 2002 04:32:33 +0100
From:      Dag-Erling Smorgrav <des@ofug.org>
To:        Bill Fenner <fenner@research.att.com>
Cc:        jhb@FreeBSD.org, obrien@FreeBSD.org, cvs-all@FreeBSD.org, cvs-committers@FreeBSD.org
Subject:   Re: cvs commit: src/lib/libfetch common.c
Message-ID:  <xzpznsw4n5a.fsf@flood.ping.uio.no>
In-Reply-To: <200210291758.JAA06540@windsor.research.att.com> (Bill Fenner's message of "Tue, 29 Oct 2002 09:58:41 -0800")
References:  <200210291758.JAA06540@windsor.research.att.com>

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Bill Fenner <fenner@research.att.com> writes:
> I don't understand why _fetch_read() is never supposed to return
> zero.  _fetch_read() *has* to return zero to stdio to indicate
> EOF.

Because in my mental reckoning I stupidly left out the simplest
(increasingly infrequent but still common) case of an FTP transfer, or
an unchunked HTTP transfer, of a file whose size is not known in
advance.  In all other cases, a 0-length read indicates a dropped
connection.  I failed to allow for the case where it doesn't.

DES
-- 
Dag-Erling Smorgrav - des@ofug.org

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