X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fodhcpd.git;a=blobdiff_plain;f=src%2Fdhcpv6-ia.c;h=9b8c47927b32b6a7ab733d0392073325a60a8708;hp=d301b4f0b5b83f01d1df6c1c91c174ef331fb97e;hb=01d3f9d64486ac1daa144848944e877e7f0cb762;hpb=b8f53276092dc48409006fec3c1e90383820cbc5

diff --git a/src/dhcpv6-ia.c b/src/dhcpv6-ia.c
index d301b4f..9b8c479 100644
--- a/src/dhcpv6-ia.c
+++ b/src/dhcpv6-ia.c
@@ -92,14 +92,15 @@ int setup_dhcpv6_ia_interface(struct interface *iface, bool enable)
 		struct lease *lease;
 		list_for_each_entry(lease, &leases, head) {
 			// Construct entry
-			struct dhcpv6_assignment *a = calloc(1, sizeof(*a) + lease->duid_len);
+			size_t duid_len = lease->duid_len ? lease->duid_len : 14;
+			struct dhcpv6_assignment *a = calloc(1, sizeof(*a) + duid_len);
 			if (!a) {
 				syslog(LOG_ERR, "Calloc failed for static lease assignment on interface %s",
 					iface->ifname);
 				return -1;
 			}
 
-			a->clid_len = lease->duid_len;
+			a->clid_len = duid_len;
 			a->length = 128;
 			if (lease->hostid) {
 				a->assigned = lease->hostid;
@@ -108,7 +109,7 @@ int setup_dhcpv6_ia_interface(struct interface *iface, bool enable)
 				a->assigned = ((i4a / 100) << 8) | (((i4a % 100) / 10) << 4) | (i4a % 10);
 			}
 			odhcpd_urandom(a->key, sizeof(a->key));
-			memcpy(a->clid_data, lease->duid, a->clid_len);
+			memcpy(a->clid_data, lease->duid, lease->duid_len);
 			memcpy(a->mac, lease->mac.ether_addr_octet, sizeof(a->mac));
 
 			// Assign to all interfaces