From: Jeff Garzik <jeff@garzik.org>
Date: Wed, 22 Mar 2006 05:04:52 GMT
Subject: git daemon and v6-only
Message-ID: <4420DAF4.7070406@garzik.org>

Regarding the following code in daemon.c socksetup():

> #ifdef IPV6_V6ONLY
>                 if (ai->ai_family == AF_INET6) {
>                         int on = 1;
>                         setsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY,
>                                    &on, sizeof(on));
>                         /* Note: error is not fatal */
>                 }
> #endif

On Linux this causes you to bind separately to v4 and v6 interfaces, 
avoiding the default (desired) behavior of using a single socket for 
both v4 and v6.

	Jeff