Re: lynx-dev /tmp failure

[David Woolley]

> 
> Linux is a bad platform for testing permissions problems since it doesn't
> behave as stringently as Unix.  (I can read from a directory which has
> "unreadable" permissions - though I've not rechecked that with the 2.2.x
> kernel yet).

Can you give a concrete example and confirm that you were not root at the
time.  This would be a serious bug that would probably get high priority
treatment given its security implications.

Just to be clear, though, to read a file in Unix you need x permission
on the directory and r permission on the file; you do not need r
permission on the directory.

All the following are correct behaviour for Unix (as well as Linux).

bash$ uname -a
Linux djwhome 2.0.36 #5 Thu Jun 10 23:33:21 BST 1999 i686
bash$ id
uid=501(david) gid=100(users) groups=100(users),11(floppy),101(setihome)
bash$ ls -ld /root
drwxr-x--x   8 root     root         2048 Aug 19 22:51 /root
bash$ ls /root
ls: /root: Permission denied
bash$ ls -l /root/lodlin16.zip
-rw-r--r--   1 root     root        95676 May  5  1996 /root/lodlin16.zip
bash$ wc /root/lodlin16.zip
    360    2165   95676 /root/lodlin16.zip
bash$