Re: EXT2 Filesystem permissions (bug)?

From: H. Peter Anvin (hpa@zytor.com)
Date: Mon Jun 25 2001 - 16:42:50 EST


Followup to: <Pine.LNX.4.30.0106251729450.18996-100000@coredump.sh0n.net>
By author: Shawn Starr <spstarr@sh0n.net>
In newsgroup: linux.dev.kernel
>
> Is this a bug or something thats undocumented somewhere?
>
> d--------T
> and
> drwSrwSrwT
>
> are these special bits? I'm not aware of +S and +T
>

It's neither a bug nor undocumented.

"info ls" would have told you the following:

     The permissions listed are similar to symbolic mode
     specifications
     (*note Symbolic Modes::.). But `ls' combines multiple bits into
     the third character of each set of permissions as follows:
    `s'
          If the setuid or setgid bit and the corresponding executable
          bit are both set.

    `S'
          If the setuid or setgid bit is set but the corresponding
          executable bit is not set.

    `t'
          If the sticky bit and the other-executable bit are both set.

    `T'
          If the sticky bit is set but the other-executable bit is not
          set.

    `x'
          If the executable bit is set and none of the above apply.

    `-'
          Otherwise.

        -hpa

-- 
<hpa@transmeta.com> at work, <hpa@zytor.com> in private!
"Unix gives you enough rope to shoot yourself in the foot."
http://www.zytor.com/~hpa/puzzle.txt
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