The default listen for 0.0.0.0 does not actually listen on 0.0.0.0 on
FreeBSD (8.4 tested); it listens on ::1.
This happens because the IPV6_V6ONLY flag has not been turned off. It
may default to off in Linux but on in FreeBSD, resulting in this not
being discovered until now.
I don't know if the right thing to do is always turn this off or not
though, so here's a simple patch that only turns it off if a null host
was passed in. This really isn't the "right" thing to do either though;
I don't think getaddrinfo() and the resultant loop should be called at
all in the case of a null host, but that's a bit too involved for me to
get into right now.
--- net.c.orig 2012-10-31 23:10:44.000000000 +0000
+++ net.c 2014-02-12 19:14:59.000000000 +0000
@@ -115,6 +115,18 @@
printf("bind %d %s:%s\n", fd, h, p);
}
}
+
+ if (NULL == host)
+ {
+ flags = 0;
+ r = setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &flags,
sizeof(flags));
+ if (r == -1) {
+ twarn("setting IPV6_V6ONLY off on fd %d", fd);
+ close(fd);
+ continue;
+ }
+ }
+
r = bind(fd, ai->ai_addr, ai->ai_addrlen);
if (r == -1) {
twarn("bind()");
--
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