Al Viro wrote: > On Tue, Jun 03, 2008 at 01:01:35PM +0100, Jamie Lokier wrote: > > > with a lot of things, starting with "why utimes(2) has weaker requirements > > > with NULL argument", but we are far too late to fix that. > > > > To be fair, having a writable file descriptor only lets you change the > > mtime to "now", and having a readable file descriptor only lets you > > change the atime to "now". > > > > Changing the times _in general_ can be seen as over-reaching those > > capabilities and arguably justifies more strict checks. > > Which is what all questions about writability apply only to NULL case > anyway... Oh! So if I have the file descriptor, I can just as well change the mtime by read a byte and write it back. Or even do a zero-length write, on some OSes. -- Jamie -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
