On Mon, Dec 18, 2017 at 07:21:33PM +0000, David Holland wrote: > On Thu, Dec 07, 2017 at 03:04:32PM +0000, Robert Swindells wrote: > > I wrote: > >> Does anyone know why we don't use the input 'optlen' parameter to the > >> getsockopt(2) syscall, we do write back to it on return. > >> [...] > >> > >> There are also lots of places in sctp_usrreq that want to use it. > >> > >> I can set it with the following patch (line numbers will be slightly > >> out), but wondered if there was a reason for the current behaviour. > >> [...] > > > > Has anyone had any other thoughts on this ? > > > > I still think that the one line change shown here is correct, it will > > allocate a buffer that gets filled by the stuff to be copied back to > > userspace. > > The man page for getsockopt says [irrelevant stuff]
Oops, I guess I am missing something. -- David A. Holland dholl...@netbsd.org