From: Daniel Kelley <news-1062190761@...>
Date: 2003-08-30T06:19:45+09:00
Subject: Re: File.chown removes setuid permission

>>>>> "Andrew" == Andrew Walrond <andrew@walrond.org> writes:

    Andrew> Is this behaviour deliberate, or a bug? The chown binary
    Andrew> from gnu coreutils does not do this.

You don't say what platform you are running on, but "man 2 chown" on
my RH8 box says (in part):

       When  the  owner  or  group of an executable file are changed by a non-
       super-user, the S_ISUID and S_ISGID mode bits are cleared.  POSIX  does
       not  specify  whether this also should happen when root does the chown;
       the Linux behaviour depends on the kernel version.  In case of  a  non-
       group-executable  file  (with  clear S_IXGRP bit) the S_ISGID bit indi-
       cates mandatory locking, and is not cleared by a chown.

so Ruby is just doing what the system call does.


d.k.

-- 
Daniel Kelley - San Jose, CA
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