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Date: Thu, 28 May 2020 10:31:18 -0700 (MST)
From: yoshi kakbudto <ed@office.targem.ru>
To: cygwin@cygwin.com
Message-ID: <1590687078818-0.post@n5.nabble.com>
In-Reply-To: <c117921e-388a-2ac2-dd95-3d66a6dae5be@cornell.edu>
References: <1562427636.19173685.1590653523730.JavaMail.zimbra@office.targem.ru>
 <c117921e-388a-2ac2-dd95-3d66a6dae5be@cornell.edu>
Subject: Re: Seems like a bug with mkfifo -m
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you say  'ls' is a problem source. Then i have to be more specific with the
problem to not miss any other possible problems around it.

My use case is this: I have an ssh rsa keys dynamically loaded in
environment variables.
Those variables then expaned and piped to the named pipe and then the pipe
instantly read by ssh-add. 
I know there could be other ways to ssh-add from environment, but its just
our specifics.
So the actual commands looks like this:

$ mkfifo -m 0600 somefifo

# The KEY contains ssh rsa private key data
$ echo $KEY > somefifo | ssh-add somefifo

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Permissions 0644 for 'somefifo' are too open.
It is required that your private key files are NOT accessible by others.
This private key will be ignored.


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