[patch] Update to libfetch

From: Kelly Yancey (kbyanc_at_posi.net)
Date: 02/22/05

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    Date: Mon, 21 Feb 2005 15:39:48 -0800 (PST)
To: freebsd-net@FreeBSD.org

      Attached is a patch to address concerns raised by Pawel Worach with
    regards to the recent change to set TCP_NOPUSH when sending HTTP
    requests from libfetch. The previous revision also introduced a call
    to shutdown(2) to close the write half of the socket in order to force
    the queued request to be sent. While this should be perfectly
    acceptable behavior for a TCP client, it appears that squid provides a
    configuration option to disallow half-closed clients (which Pawel is
    currently using). As such, after introducing the shutdown(2) call,
    fetch(1) can no longer fetch files via HTTP through such proxies.
      To address this issue, the attached patch replaces the call to
    shutdown(2) with some socket option fiddling (clearing TCP_NOPUSH and
    setting TCP_NODELAY) which does the same job of forcing the client to
    write the queued request to the network without closing the write half
    of the socket. This feels a bit hackish to me, but gets the job done.
    Anyway, I would appreciate any feedback. Thanks,

      Kelly 

    --
Kelly Yancey  -  kbyanc@{posi.net,FreeBSD.org}  -  kelly@nttmcl.com

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