On Wed, Sep 17, 2014 at 06:08:45PM -0400, Joshua Judson Rosen wrote: > On 2014-09-17 12:52, Cathey, Jim wrote: > >Pretty sure 'our' upstream rm (in a prior life) expressly > >prohibited -r on starting paths that contained .. members. > >Too many weirdo cases where you would get into trouble. > > GNU rm opens the top-level directory and uses unlinkat(), fstatat(), etc. to > remove > files and subdirectories without having to resolve the paths for every > file/directory processed; so it runs into the problem (that some ".." link no > longer exists) only when it finally reaches that top-level directory. > It still refuses to operate on paths that _end_ in "/.." (or "/.").
This is explicitly required by POSIX. Which implies that determining a canonical name should not be done. HTH, Isaac Dunham _______________________________________________ busybox mailing list [email protected] http://lists.busybox.net/mailman/listinfo/busybox
