X-Git-Url: https://the.earth.li/gitweb/?a=blobdiff_plain;f=mqtt-arp.c;h=71d8567e39653ca73b2fc75b5d70eebdc676ca02;hb=e6c7ebbe87ce08a21b3b5d77b82f7a03efa32e88;hp=19da3304117ace9589b3d17cf148cf89484aaaad;hpb=6121bfeaf48b68f62c814ca094f5ffb2d32b7dc2;p=mqtt-arp.git

diff --git a/mqtt-arp.c b/mqtt-arp.c
index 19da330..71d8567 100644
--- a/mqtt-arp.c
+++ b/mqtt-arp.c
@@ -197,19 +197,20 @@ void main_loop(struct ma_config *config, struct mosquitto *mosq, int sock)
 					nd->ndm_type);
 			}
 			attr = (struct nlattr *) (nd + 1);
-			while (attr->nla_len > 0) {
-				data = (((uint8_t *) attr) + 4);
+			while (((uint8_t *) attr - buf) < hdr->nlmsg_len) {
+				data = (((uint8_t *) attr) + NLA_HDRLEN);
 				if (attr->nla_type == NDA_LLADDR &&
 					nd->ndm_state == NUD_REACHABLE) {
 					mqtt_mac_presence(config, mosq,
 							data, true);
 				}
-				attr = (struct nlattr *)
-					(((uint8_t *) attr) + attr->nla_len);
+				attr = (struct nlattr *) (((uint8_t *) attr) +
+						NLA_ALIGN(attr->nla_len));
 			}
 			break;
 		case RTM_DELNEIGH:
 		case RTM_GETNEIGH:
+			break;
 		default:
 			printf("Unknown message type: %d\n", hdr->nlmsg_type);
 		}