mike@whuxl.UUCP (BALDWIN) (09/03/85)
> Now, another security/integrity problem on UNIX I would like to hear > a discussion on: /tmp. Let's face it, it's a problem (anyone can do > an 'rm /tmp/*', or fill it with junk, or usually read many files on > it.) How about considering a temporary file type (maybe by making /tmp > a device?) with some special rules (delete on last close, no name in > the visible file space except to root etc.) Of course any design should > be ignorable (transparently work the old way at sites that don't need it, > like my UNIX/PC.) 2.8BSD, and maybe 2.9, used the sticky bit on a directory to mean that a file in that directory could only be removed by the owner of that file or directory. This fixes the "rm /tmp/*" problem. Supposedly this will be in 4.3BSD. -- Michael Baldwin AT&T Bell Labs harpo!whuxl!mike