From owner-freebsd-fs@FreeBSD.ORG  Thu Jan 20 02:00:00 2005
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125])
	by hub.freebsd.org (Postfix) with ESMTP id F2CB516A4CE
	for <freebsd-fs@freebsd.org>; Thu, 20 Jan 2005 01:59:59 +0000 (GMT)
Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.202])
	by mx1.FreeBSD.org (Postfix) with ESMTP id 2BC4943D58
	for <freebsd-fs@freebsd.org>; Thu, 20 Jan 2005 01:59:58 +0000 (GMT)
	(envelope-from chiahsing@gmail.com)
Received: by wproxy.gmail.com with SMTP id 70so39830wra
        for <freebsd-fs@freebsd.org>; Wed, 19 Jan 2005 17:59:57 -0800 (PST)
DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws;
	s=beta; d=gmail.com;
	h=received:message-id:date:from:reply-to:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:references;
	b=EIXRhWi+s9IRtAVhkk43lGjZKnkMVnYj+yCSOO/7ygBmcFb4NxFsvSChBIkdUN9K1XrDZEGOaj9RgjmgyDhsympXL8Mo0WsLBEtzrJjmNzJJaQx0j9FeavwkDNpLm39bK12C0Uk5WTfOxAHGhgXDt+E5I8Jk7cBHu+SkB2EhPzY=
Received: by 10.54.13.43 with SMTP id 43mr287799wrm;
        Wed, 19 Jan 2005 17:59:57 -0800 (PST)
Received: by 10.54.31.21 with HTTP; Wed, 19 Jan 2005 17:59:57 -0800 (PST)
Message-ID: <ad2ada4b05011917596a6ad7b5@mail.gmail.com>
Date: Wed, 19 Jan 2005 17:59:57 -0800
From: David Yu <chiahsing@gmail.com>
To: freebsd-fs@freebsd.org, freebsd-current@freebsd.org
In-Reply-To: <ad2ada4b0501162128515533f3@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
References: <ad2ada4b05011613445601befe@mail.gmail.com>
	 <20050117020039.GB630@nu.org>
	 <ad2ada4b05011618258c80402@mail.gmail.com>
	 <20050117032255.GC630@nu.org>
	 <ad2ada4b0501162128515533f3@mail.gmail.com>
Subject: Re: NTFS unicode converting problem
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.1
Precedence: list
Reply-To: David Yu <chiahsing@gmail.com>
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 20 Jan 2005 02:00:00 -0000

I wrote a patch for mounting NTFS as UTF-8. The patch is at
http://www.cse.ucsd.edu/~chyu/ntfs-utf8.diff . After patch, you need
to recompile the kernel module libiconv and ntfs (or the whole kernel
if you do not use kernel module).

This patch should solve the problem that the original libiconv in the
kernel cannot convert characters to UTF-8 longer than 2 bytes per
char. I ported the UTF-8 <-> UCS-2 converter from GNU libiconv into
the kernel. However, I don't know how to implement "casetype" in the
conversion function, this may cause some problem in case insensitive
matching used in msdosfs.

I think this patch should just be a temporary workaround. The libiconv
in the kernel should be rewritten for a good structure.