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Fix --localise-queries via interface lo bug.

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This commit is contained in:
Simon Kelley
2012-02-29 20:10:31 +00:00
parent 4f8ff361dc
commit 552af8b988
2 changed files with 32 additions and 6 deletions
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33
src/forward.c
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@@ -766,12 +766,33 @@ void receive_query(struct listener *listen, time_t now)
!iface_check(listen->family, &dst_addr, ifr.ifr_name))
return;
if (listen->family == AF_INET &&
option_bool(OPT_LOCALISE) &&
ioctl(listen->fd, SIOCGIFNETMASK, &ifr) == -1)
return;
netmask = ((struct sockaddr_in *) &ifr.ifr_addr)->sin_addr;
if (listen->family == AF_INET && option_bool(OPT_LOCALISE))
{
struct irec *iface;
/* get the netmask of the interface whch has the address we were sent to.
This is no neccessarily the interface we arrived on. */
for (iface = daemon->interfaces; iface; iface = iface->next)
if (iface->addr.sa.sa_family == AF_INET &&
iface->addr.in.sin_addr.s_addr == dst_addr_4.s_addr)
break;
/* interface may be new */
if (!iface)
enumerate_interfaces();
for (iface = daemon->interfaces; iface; iface = iface->next)
if (iface->addr.sa.sa_family == AF_INET &&
iface->addr.in.sin_addr.s_addr == dst_addr_4.s_addr)
break;
/* If we failed, abandon localisation */
if (iface)
netmask = iface->netmask;
else
dst_addr_4.s_addr = 0;
}
}
if (extract_request(header, (size_t)n, daemon->namebuff, &type))