True for SunOS, Solaris and IRIX. Not true for Linux.
Because setting the sticky bit for regular files isn't universally
enforced, we can't overload it for capabilities. Fixing kernel 2.2.6
and 2.0.37 won't do, because there could be many filesystems which
have existing files with the sticky bit set. You could pre-emptively
create a capabilities header on existing systems.
Telling the sysadmin to purge the sticky bit on all files is not an
option, because those who don't know about this will be exposed to
lusers. Besides, there would be a need to audit backup tapes and so
on. It's a mess.
Regards,
Richard....
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