-/* $Cambridge: exim/src/src/routers/rf_lookup_hostlist.c,v 1.3 2005/01/11 15:51:03 ph10 Exp $ */
+/* $Cambridge: exim/src/src/routers/rf_lookup_hostlist.c,v 1.4 2005/08/09 13:31:53 ph10 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
replaces the incoming "host". In other words, "x/MX" is shorthand for "those
hosts pointed to by x's MX records".
+It is also possible for a port to be specified along with the host name or IP
+address. The syntax is to add ":port" on to the end. This doesn't work with
+IPv6 addresses, so we allow IP addresses to be enclosed in [] in order to make
+this work. The specification of the port must come last, that is, after "/MX"
+if that is present.
+
Arguments:
rblock the router block
addr the address being routed
for (h = addr->host_list; h != NULL; prev = h, h = next_h)
{
uschar *canonical_name;
- int rc, len;
+ int rc, len, port;
next_h = h->next;
if (h->address != NULL) continue;
DEBUG(D_route|D_host_lookup)
debug_printf("finding IP address for %s\n", h->name);
+ /* Handle any port setting that may be on the name; it will be removed
+ from the end of the name. */
+
+ port = host_item_get_port(h);
+
/* If the name ends with "/MX", we interpret it to mean "the list of hosts
pointed to by MX records with this name". */
DEBUG(D_route|D_host_lookup)
debug_printf("doing DNS MX lookup for %s\n", h->name);
- h->name[len-3] = 0;
+ h->name = string_copyn(h->name, len - 3);
rc = host_find_bydns(h,
ignore_target_hosts,
HOST_FIND_BY_MX, /* look only for MX records */
return DEFER;
}
+ /* Deal with a port setting */
+
+ if (port != PORT_NONE)
+ {
+ host_item *hh;
+ for (hh = h; hh != next_h; hh = hh->next) hh->port = port;
+ }
+
/* A local host gets chopped, with its successors, if there are previous
hosts. Otherwise the self option is used. If it is set to "send", any
subsequent hosts that are also the local host do NOT get chopped. */