setperms on linux

[Bob Stockler]

Brian K. White wrote (on Wed, Apr 12, 2006 at 06:23:31PM -0400):

| .... AHHH! I found it finally.
| 
| Both the stock setperms and my improved copy have pairs of chmod & chown 
| commands in the order of chmod, then chown.
| 
| Some genius has changed something somewhere such that chown now wipes off 
| the suid bit!
| I reversed the order so that it's always chown then chmod and now the files 
| are left with the right perms.
| 
| Is it just me or is it just plain inexcusably broken for chown to even 
| _touch_ the chmod bits??

Somewhere, in the deep dark recesses of my mind, I recall that
chown is supposed to remove the SUID bit for security reasons.

Limited experimenting on SCO OSR6 shows that if user "name" owns
a file and makes it SUID, then changes its ownership to the user
"newname", the SUID bit dissappears.

Bob

-- 
Bob Stockler  +-+  bob at trebor.iglou.com  +-+  http://members.iglou.com/trebor