On Wed, 2004-05-05 14:44:49 -0400, Gregory Symons <[EMAIL PROTECTED]> wrote in message <[EMAIL PROTECTED]>: > On Wed, 2004-05-05 at 04:02, Paul Slootman wrote:
> But in Linux, IPV6_V6ONLY socket option does not exist in kernel2.4.20 > or earlier, except for USAGI kernels. Therefore, you can't do a bind(2) > of IPv4/IPv6 wildcard address to the same port. Therefore, you would > bind(2) only IPv6 wildcard address, and handle IPv4 traffic via > IPv4-mapped address with the same socket. Right, Linux' IPv6 implementation, especially in 2.4.x, is buggy. > <http://www.ipv6style.jp/en/apps/20030829/index.shtml> > > And I am indeed running a 2.4.20 kernel. So maybe the configure script > needs to detect whether or not this flag is actually available (which I > thought was the point of the #ifdef), rather than trusting the fact that > the macro itself is defined. Otherwise, if IPV6 _is_ available, but Well, that depends... > IPV6_IPV6ONLY option is not, using the patch you sent would cause us to > skip any IPV6 addresses that we want to bind to. rsync (as other programs) should ./configure to adopt it's host system's libc API. That is, if libc offers IPV6_V6ONLY, rsync should accept that fact and use it {properly,if needed}. So if there's a (detectable) bug, let's complain about it, but please accept the presented API. If really a workaround is needed, rsync should detect that error *at runtime*, complain loudly and exit (offering some --use-broken-linux-2.4.x-ipv6-stack) for allowing it to work properly. Runtime check? Right. Think about distributions that offer both 2.4.x and 2.6.x. For sure you won't like to deliver two rsync versions to your users:) ...and because IPV6_V6ONLY exists in 2.4.21 upwards, I think that's not a major problem. Hey, these kernels do have known root exploits, so it's time for an update! So if there's a but, don't hide it, but work towards fixing it. MfG, JBG -- Jan-Benedict Glaw [EMAIL PROTECTED] . +49-172-7608481 "Eine Freie Meinung in einem Freien Kopf | Gegen Zensur | Gegen Krieg fuer einen Freien Staat voll Freier Bürger" | im Internet! | im Irak! ret = do_actions((curr | FREE_SPEECH) & ~(NEW_COPYRIGHT_LAW | DRM | TCPA));
signature.asc
Description: Digital signature
-- To unsubscribe or change options: http://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
