Don, is this a POSIX/SUS implementation or standard defect?

Olga

On Wed, Apr 7, 2010 at 6:22 PM, Nicolas Williams
<nicolas.willi...@sun.com> wrote:
> On Wed, Apr 07, 2010 at 11:17:52AM -0400, Glenn Fowler wrote:
>> can someone who can reproduce the failure do
>>       {
>>       df /tmp
>>       rm -rf /tmp/command
>>       umask
>>       truss /bin/ksh93 -c 'mkdir -m 1777 /tmp/command'
>>       } > test.out 2>&1
>> and send me test.out
>
> With 93t+ I see the sticky NOT set.  The truss shows:
>
> umask(0)                                        = 022
> mkdir("/tmp/command", 01777)                    = 0
> umask(022)                                      = 0
>
> Trussing the real /bin/mkdir I see:
>
> umask(0)                                        = 022
> umask(022)                                      = 0
> mkdir("/tmp/cmd2", 01777)                       = 0
> lxstat(2, "/tmp/cmd2", 0x080473E0)              = 0
> chmod("/tmp/cmd2", 01777)                       = 0
>
> It seems that the sticky bit cannot be set by the mkdir(2) system call?!
> I see no indication in mkdir(2), chmod(2), umask(2), or intro(2) that
> mkdir(2) cannot create directories with S_ISVTX or, for that matter,
> S_ISGID (the ksh93 builtin also can't create directories with S_ISGID
> set).
>
> I think this must either be a bug in Solaris or, given the report from a
> MacOS X user, perhaps a POSIX bug.  The inability to atomically create a
> directory with S_ISVTX and/or S_ISGID set seems at least annoying.
>
> Nico
> --
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>



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      ,   _                                    _   ,
     { \/`o;====-    Olga Kryzhanovska   -====;o`\/ }
.----'-/`-/     olga.kryzhanov...@gmail.com   \-`\-'----.
 `'-..-| /     Solaris/BSD//C/C++ programmer   \ |-..-'`
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