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Reply-To: Brian DOT Inglis AT SystematicSw DOT ab DOT ca
Subject: Re: Odd, is it not? mkdir 'e:\' cannot be undone by rmdir 'e:\' ...
To: cygwin AT cygwin DOT com
References: <bc3df101ab93c20b86c3ab7fa7d3ea4f AT xs4all DOT nl> <20190827152549 DOT GY11632 AT calimero DOT vinschen DOT de> <8736hm7aun DOT fsf AT Rainer DOT invalid>
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
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Date: Tue, 27 Aug 2019 14:37:23 -0600
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On 2019-08-27 11:54, Achim Gratz wrote:
> Corinna Vinschen writes:
>> mkdir(2) has some special code from 2009 which drops trailing
>> {back}slashes to perform a bordercase in mkdir Linux-compatible.
>> This code snippet doesn't exist in rmdir(2).
> 
> While we're discussing oddities, creating symbolic links in the virtual
> /dev directory still works and those links show up in the real
> (underlying) Windows directory as well.  This is why the Bash
> postinstall still works and I'm not sure if it should do that the way
> it's written.

https://cygwin.com/cygwin-ug-net/using-specialnames.html#pathnames-posixdevices
lists the process devs, "udevs", and NT mappings, and specifies that the /dev
directory is real to allow symlinks like cdrom/dvdrw -> sr0/scd0 and
gps0/pps0/gpspps0 -> ttyS0.

I notice /dev/kmsg documented but no longer appears, but /dev/log[=] exists if
syslog-ng is running; and /dev/pipe and /dev/fifo are mentioned but don't exist.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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