Description: Fetch split DNS information from Cisco servers
 Cisco servers can optionally include a list of domain names that are
 configured using split DNS.
 .
 Request that list, and then export it to the vpnc-script
Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/vpnc/+bug/954747
Author: Evan Broder <evan@ebroder.net>

Index: vpnc-0.5.3r512/vpnc.c
===================================================================
--- vpnc-0.5.3r512.orig/vpnc.c	2012-03-13 23:21:45.000000000 -0700
+++ vpnc-0.5.3r512/vpnc.c	2012-03-13 23:37:09.495911698 -0700
@@ -1086,6 +1086,18 @@
 			}
 			break;
 
+		case ISAKMP_MODECFG_ATTRIB_CISCO_SPLIT_DNS:
+			if (a->af != isakmp_attr_lots) {
+				reject = ISAKMP_N_ATTRIBUTES_NOT_SUPPORTED;
+				break;
+			}
+			strbuf = xallocc(a->u.lots.length + 1);
+			memcpy(strbuf, a->u.lots.data, a->u.lots.length);
+			addenv("CISCO_SPLIT_DNS", strbuf);
+			free(strbuf);
+			DEBUG(2, printf("Split DNS: %s\n", a->u.lots.data));
+			break;
+
 		case ISAKMP_MODECFG_ATTRIB_CISCO_SAVE_PW:
 			DEBUG(2, printf("got save password setting: %d\n", a->u.attr_16));
 			break;
@@ -2433,6 +2445,7 @@
 	a->u.lots.data = xallocc(a->u.lots.length);
 	memcpy(a->u.lots.data, uts.nodename, a->u.lots.length);
 
+	a = new_isakmp_attribute(ISAKMP_MODECFG_ATTRIB_CISCO_SPLIT_DNS, a);
 	a = new_isakmp_attribute(ISAKMP_MODECFG_ATTRIB_CISCO_SPLIT_INC, a);
 	a = new_isakmp_attribute(ISAKMP_MODECFG_ATTRIB_CISCO_SAVE_PW, a);
 
Index: vpnc-0.5.3r512/vpnc-script
===================================================================
--- vpnc-0.5.3r512.orig/vpnc-script	2012-03-13 23:21:45.000000000 -0700
+++ vpnc-0.5.3r512/vpnc-script	2012-03-13 23:21:45.000000000 -0700
@@ -15,6 +15,7 @@
 #* INTERNAL_IP6_DNS             -- IPv6 list of dns servers
 #* CISCO_DEF_DOMAIN             -- default domain name
 #* CISCO_BANNER                 -- banner from server
+#* CISCO_SPLIT_DNS              -- comma-separated list of domain names with split DNS
 #* CISCO_SPLIT_INC              -- number of networks in split-network-list
 #* CISCO_SPLIT_INC_%d_ADDR      -- network address
 #* CISCO_SPLIT_INC_%d_MASK      -- subnet mask (for example: 255.255.255.0)