linux-kernel - Re: [Orinoco-users] linux-firmware binary corruption with gitweb

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Message-Id: <1236273981.24072.16.camel@mj>
Date:	Thu, 05 Mar 2009 12:26:21 -0500
From:	Pavel Roskin <proski@....org>
To:	Dave <kilroyd@...glemail.com>
Cc:	Jakub Narebski <jnareb@...il.com>, git@...r.kernel.org,
	linux-kernel@...r.kernel.org, orinoco-users@...ts.sourceforge.net,
	dwmw2@...radead.org,
	John 'Warthog9' Hawley <warthog9@...lescrag.net>
Subject: Re: [Orinoco-users] linux-firmware binary corruption with gitweb

On Wed, 2009-03-04 at 23:52 +0000, Dave wrote:
>         binmode STDOUT, ':raw';
> -        print <$fd>;
> +        #print <$fd>;
> +        $output .= <$fd>;
>         binmode STDOUT, ':utf8'; # as set at the beginning of
> gitweb.cgi

Nice catch!

Looking at the gitweb repository from kernel.org, two instances of
circumventing binmode were introduced by this commit:

commit c79ae555fb3c89d91b4cafbfce306e695720507b
Author: John Hawley <warthog9@...t-cruiser.localdomain>
Date:   Thu Dec 28 21:59:43 2006 -0800

    Last of the changes to deal with channeling the text through the caching
    engine.  Wow is this a total hack.

The original behavior was restored in git_snapshot() by the recent
commit c15229acd9bedf165f1eb05d99fa989d3b9f3e32, but git_blob_plain()
remains broken.

I don't see an easy fix.  We cannot manipulate the blob to counteract
the encoding, as it may not be valid utf-8, and therefore won't be
output in the utf-8 mode.

Maybe binmode should be raw everywhere, and adding to $output should
recode data to utf-8 from other encodings where needed, but it would be
a massive patch, I'm afraid.  Or it would be a small patch requiring
massive testing.

Adding John Hawley to cc:

-- 
Regards,
Pavel Roskin
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