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Date: Tue, 3 Sep 2019 09:47:58 +0300
From: Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To: cygwin AT cygwin DOT com
Message-ID: <662460215.20190903094758@yandex.ru>
To: Houder <cygwin AT cygwin DOT com>, cygwin AT cygwin DOT com
Subject: Re: Odd, is it not? mkdir 'e:\' cannot be undone by rmdir 'e:\' ...
In-Reply-To: <e438666b60ee08a2a3ee4ca16015382f@smtp-cloud9.xs4all.net>
References: <bc3df101ab93c20b86c3ab7fa7d3ea4f AT xs4all DOT nl>   <20190827152549 DOT GY11632 AT calimero DOT vinschen DOT de>  <a47cc167b725c08e6f1c914166fabcaf AT smtp-cloud8 DOT xs4all DOT net>  <3E262D05-F393-453A-9E43-B248DDE50812 AT solidrocksystems DOT com>  <b97e4dbe952154efc68412540514ae81 AT smtp-cloud8 DOT xs4all DOT net>  <20190828125939 DOT GL11632 AT calimero DOT vinschen DOT de>  <421ac447-b249-da21-1ca5-228041cfc884 AT redhat DOT com>  <20190828141556 DOT GM11632 AT calimero DOT vinschen DOT de>  <20190828142220 DOT GN11632 AT calimero DOT vinschen DOT de>  <ee1138b29ee4be60d62d86d59f581b2e AT smtp-cloud8 DOT xs4all DOT net>  <4a87b7a940fb0cf76aac5f3bc5b1a8b3 AT smtp-cloud7 DOT xs4all DOT net>  <e438666b60ee08a2a3ee4ca16015382f AT smtp-cloud9 DOT xs4all DOT net>
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Greetings, Houder!

> Examining this (obsure) method in path.cc, I corrected the code
> in 2 places:

> ---
>       if (dev.isfs ())
>         {
>           //if (strncmp (path, "\\\\.\\", 4)) <==== 1171
>           if ( ! strncmp (path, "\\\\.\\", 4)) // <==== [1]
>             {
>               if (!tail || tail == path)
>                 /* nothing */;
>               else if (tail[-1] != '\\')
>                 *tail = '\0'; <==== Ah! (you should not do that!)
>               else
>                 {
>                   error = ENOENT;
>                   return;
>                 }
>             }

> [1] this code should be executed only if path == '\\.\' !!

"\\.\" is an UNC reference to "this host".
Used f.e. in references to Windows "named pipes".


-- 
With best regards,
Andrey Repin
Tuesday, September 3, 2019 9:46:42

Sorry for my terrible english...


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