X-Recipient:	archive-cygwin AT delorie DOT com
DomainKey-Signature:	a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:message-id:from:reply-to:to:cc:subject
	:references:in-reply-to:content-type; q=dns; s=default; b=KgXpr9
	i7Z6a4fpDj2V7rExcp5i9nPXWLrJgBBabMPtVfJ27N/Z0FkA/h4Xkfq08XCxKkA1
	vCoABw3y7EPhNcWrtfE9JCyg5wMrEsT/AlW79DX7dOrE3/g5Tj0rwXrFEIolnHEJ
	0z3eNvvhBvSNhSh+UESFCLP2bVmhV9NZxhO5U=
DKIM-Signature:	v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:date:message-id:from:reply-to:to:cc:subject
	:references:in-reply-to:content-type; s=default; bh=wWr4IEWBp1UN
	4+w7MpN1xzkHILI=; b=olZWYQLjm2JN0+QEYm7Wl70wBVReH4K993Kk955liCW6
	bShkn61iXYqM2Z6eqRt7accs+8I7+K0r1uHxMGVd3aRlhZ8SK5crGPpRD9z04pOz
	beBEoLk5uBDUkawNRDqCLNecrIEYyP/cdBnLXL0CLLs6JlmvKpQUnBxe4k+PpWQ=
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
List-Subscribe:	<mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive:	<http://sourceware.org/ml/cygwin/>
List-Post:	<mailto:cygwin AT cygwin DOT com>
List-Help:	<mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender:	cygwin-owner AT cygwin DOT com
Mail-Followup-To:	cygwin AT cygwin DOT com
Delivered-To:	mailing list cygwin AT cygwin DOT com
Authentication-Results:	sourceware.org; auth=none
X-Spam-SWARE-Status:	No, score=-1.8 required=5.0 tests=AWL,BAYES_00,NORMAL_HTTP_TO_IP,NUMERIC_HTTP_ADDR,RCVD_IN_DNSWL_LOW,SPF_PASS autolearn=ham version=3.3.1 spammy=Had, letter, act
X-HELO:	lb3-smtp-cloud7.xs4all.net
Date:	Thu, 29 Aug 2019 00:43:47 +0200
Message-ID:	<79c3029bece494538245687c26fccf29@smtp-cloud7.xs4all.net>
From:	Houder <houder AT xs4all DOT nl>
Reply-To:	cygwin AT cygwin DOT com
To:	cygwin AT cygwin DOT com
Cc:	eblake AT redhat DOT com
Subject:	Re: Odd, is it not? mkdir 'e:\' cannot be undone by rmdir 'e:\' ...
References:	<bc3df101ab93c20b86c3ab7fa7d3ea4f AT xs4all DOT nl> <27047198-dba4-091b-8235-fc9150b68fbe AT redhat DOT com>
In-Reply-to:	<27047198-dba4-091b-8235-fc9150b68fbe@redhat.com>
User-Agent:	mua.awk 0.99

On Wed, 28 Aug 2019 08:33:05, Eric Blake  wrote:

> On 8/27/19 7:51 AM, Houder wrote:
> 
>
> > 64-@@ mkdir 'e:\' # creates subdirectory e: !!!!!
> 
> Had you typed:
> 
> mkdir 'e:/'
> 
> I would expect subdirectory ./e: to  be created.  But with 'e:\', that
> is a DOS style path, so I would lean towards requiring './e:\' if you
> want to create a literal directory named 'e:\', but without the leading
> ./ to merely treat 'e:\' as the drive letter and failing with EEXIST
> because /cygdrive/e already exists.
> 
> So it sounds like mkdir() could be further improved when something ends
> in \ rather than in /.  (The behavior when ending in / should not be
> changed, though).
> 
> > 64-@@ rmdir 'e:\' # fails, because it refers to /drv/e
> > rmdir: failed to remove 'e:\': Directory not empty
> 
> That matches what I would expect - because you did not pass a leading
> './', but used a backslash, you used a DOS style path and should be
> attempting to act on /cygdrive/e.
> 
>
> > 64-@@ rmdir 'e:'
> 
> This, however, is not a DOS path, so it should prefer to act on './e:'
> if that exists (and only if it does not exist, then we might consider
> ALSO seeing if /cygdrive/e exists before giving up completely).
> 
>
> > Yes, I should NOT use "DOS paths" ...
>
> > https://cygwin.com/cygwin-ug-net/using.html#pathnames-win32
>
> > However, I wonder why e:\ is interpreted by mkdir as e:, and as
> > /drv/e (that is as e:\) by rmdir.
> 
> mkdir 'e:/' is supposed to be identical to mkdir 'e:'.  The problem is
> that because we interchange \ with / in a number of places, we have
> accidentally ended up with mkdir 'e:\' behaving like mkdir 'e:/' instead
> of acting on the DOS path.

# note: cygdrive has been remapped to /drv at my place

Good gracious! (btw, thank you for the explanation)

 - 'e:\' is a DOS path
 - e:/ is not a DOS path (removing the trailing /, yields e:)

However, ls -ld e:/ refers to /drv/e
(e:/ is interpreted as 'e:\' by ls!)

So do rmdir, stat, touch ... (and many other commands)

They are all wrong ... Correct?

How about e:/foo ????? A DOS path? Does it refer to /drv/e/foo?

According to

    https://cygwin.com/cygwin-ug-net/using.html#pathnames-win32

it is a DOS path (and NOT foo in subdirectory e:)

Said differently, e: is a subdirectory, and e:/ is the same thing,
because a trailing forward slash is ignored (like Linux does).

Correct?


Henri


--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple

- Raw text -