Problem with patch and infinit directories
Brandon Allbery the tame hacker on the North Coast
bsa at ncoast.UUCP
Fri Jan 25 01:03:01 AEST 1985
> Article <2547 at umcp-cs.UUCP>, from chris at umcp-cs.UUCP (Chris Torek)
+----------------
| > The restriction about linking directories is built into
| > the link program.
|
| Not in 4.2BSD it's not! I think it was in the 4.1 kernel as well.
| (I haven't seen any other kernel sources, so I wouldn't know about
| V6/V7/Sn.)
V7 allows it; it's how /bin/mkdir works. In fact, I just had to write
a custom mkdir because /bin/mkdir was using the wrong uid to compute
access permissions. I can see why 4.2's mkdir system call would be useful.
Also: Plexus P/35 (System III) has /etc/link which links directories
and is billed to be /bin/ln without error checking (for root only).
--bsa
--
Brandon Allbery @ decvax!cwruecmp!ncoast!bsa (..ncoast!tdi1!bsa business)
6504 Chestnut Road, Independence, Ohio 44131 +1 216 524 1416 (or what have you)
Who said you had to be (a) a poor programmer or (b) a security hazard
to be a hacker?
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