linux-kernel - Re: bug? VFAT copy problem

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Date:	Thu, 23 Nov 2006 20:32:38 +0900
From:	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:	The Peach <smartart@...cali.it>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: bug? VFAT copy problem

The Peach <smartart@...cali.it> writes:

> anyway I didn't get why some files will copy with the right case and
> other don't. Was it a problem with the dentry table randomly failing
> in saving the filename?

If it's shortname (the detail of shortname is following), the
"shortname=" option solves a problem. If it's longname (not
shortname), the patch solves a problem. The your case seems to need both.

 * 1) Valid characters for the 8.3 format alias are any combination of
 * letters, uppercase alphabets, digits, any of the
 * following special characters:
 *     $ % ' ` - @ { } ~ ! # ( ) & _ ^
 * In this case Longfilename is not stored in disk.
 *
 * WinNT's Extension:
 * File name and extension name is contain uppercase/lowercase
 * only. And it is expressed by CASE_LOWER_BASE and CASE_LOWER_EXT.
 *
 * 2) File name is 8.3 format, but it contain the uppercase and
 * lowercase char, muliti bytes char, etc. In this case numtail is not
 * added, but Longfilename is stored.
 *
 * 3) When the one except for the above, or the following special
 * character are contained:
 *        .   [ ] ; , + =
 * numtail is added, and Longfilename must be stored in disk .
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
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