patch to apache for IPv6 only httpd
Curtis Villamizar
curtis at occnc.com
Sun Aug 12 23:53:48 UTC 2012
In message <50282D58.5070605 at FreeBSD.org>
Olli Hauer writes:
> On 2012-08-11 23:22, Curtis Villamizar wrote:
> > FYI-
> >
> > This very simple patch prevents an assert when httpd is run on a
> > server that has no IPv4 address. An example is a BSD jail running
> > with only an IPv6 address on the interface (no loopback so no
> > 127.0.0.1 address to bind to).
> >
> > Copy the patch below into the files directory as
> > /usr/ports/www/apache22/files/patch-server__config.c
> >
> > The port maintainer is on the Cc. No bug has been reported.
> >
> > BTW- I noticed this a long time ago. I don't remember if I reported
> > it or forgot to. Appologies if this is a duplicate. It is not in the
> > httpd-2.2.22.tar.bz2 tarball, in the distinfo dated 23 July 2012.
> >
> > Curtis
> >
> >
> > --- ./server/config.c.orig 2010-10-07 09:56:54.000000000 -0700
> > +++ ./server/config.c 2011-09-26 21:20:35.000000000 -0700
> > @@ -1979,6 +1979,9 @@
> > /* NOT virtual host; don't match any real network interface */
> > rv = apr_sockaddr_info_get(&s->addrs->host_addr,
> > NULL, APR_INET, 0, 0, p);
> > + if (rv != APR_SUCCESS)
> > + rv = apr_sockaddr_info_get(&s->addrs->host_addr,
> > + NULL, APR_UNSPEC, 0, 0, p);
> > ap_assert(rv == APR_SUCCESS); /* otherwise: bug or no storage */
> >
> > s->addrs->host_port = 0; /* matches any port */
>
> Hi Curtis,
>
> Is this patch also relevant if apache22 was build with
> -DWITH_IPV6_V6ONLY ?
>
> --
> olli
No. Apache was not built with -DWITH_IPV6_V6ONLY. It is apache built
with dual stack support though I don't think the code is any different
if built with WITH_IPV6_V6ONLY. Nothing here is conditionally
compiled. I also checked the .h where APR_INET is defined (in
srclib/apr/include/apr_network_io.h). It is unconditionally defined
to AF_INET.
The code compiles but the server fails to run, giving an assert when
starting up. Its a simple patch. APR_INET6 could be used instead of
APR_UNSPEC in the patch.
Curtis
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