Clean up add_network.

network.c

@@ -44,25 +44,29 @@ int numnets = 0;
 struct network *
 add_network(char *ifname)
 {
+    struct network *net;
+
     if(numnets >= MAXNETS) {
         fprintf(stderr, "Too many networks.\n");
         return NULL;
     }
 
-    memset(nets + numnets, 0, sizeof(struct network));
-    nets[numnets].up = 0;
-    nets[numnets].ifindex = 0;
-    nets[numnets].ipv4 = NULL;
-    nets[numnets].activity_time = now.tv_sec;
-    nets[numnets].bufsize = 0;
-    strncpy(nets[numnets].ifname, ifname, IF_NAMESIZE);
-    nets[numnets].sendbuf = NULL;
-    nets[numnets].buffered = 0;
-    nets[numnets].bucket_time = now.tv_sec;
-    nets[numnets].bucket = BUCKET_TOKENS_MAX;
-    nets[numnets].hello_seqno = (random() & 0xFFFF);
+    net = &nets[numnets];
+
+    memset(net, 0, sizeof(struct network));
+    net->up = 0;
+    net->ifindex = 0;
+    net->ipv4 = NULL;
+    net->activity_time = now.tv_sec;
+    net->bufsize = 0;
+    strncpy(net->ifname, ifname, IF_NAMESIZE);
+    net->sendbuf = NULL;
+    net->buffered = 0;
+    net->bucket_time = now.tv_sec;
+    net->bucket = BUCKET_TOKENS_MAX;
+    net->hello_seqno = (random() & 0xFFFF);
     numnets++;
-    return &nets[numnets - 1];
+    return net;
 }
 
 int