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Re: mkdir -p and Default ACLs

From: Paul Eggert
Subject: Re: mkdir -p and Default ACLs
Date: Fri, 25 Jul 2008 15:31:01 -0700
User-agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux)

Jan Engelhardt <address@hidden> writes:

> Using 0755 is what I deem the bug, and 0777 is what I think is 
> correct.

But mkdir -p also invokes umask, so the two should be equivalent.
Here's the behavior I see with coreutils 6.12 on Debian stable (no ACLs):

   $ umask
   $ strace -e mkdir,umask mkdir test1
   mkdir("test1", 0777)                    = 0
   $ strace -e mkdir,umask mkdir -p test2
   umask(0)                                = 022
   mkdir("test2", 0755)                    = 0

mkdir("test1", 0777) with umask 022 ought to be equivalent to
mkdir("test2", 0755) with umask 0.  If it isn't equivalent, that
suggests something is dodgy with your ACL implementation.

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