Switch to using a linked list for the list of networks.

babel.h

@@ -23,7 +23,6 @@ THE SOFTWARE.
 #define MAXROUTES 512
 #define MAXSRCS 256
 #define MAXNEIGHBOURS 64
-#define MAXNETS 16
 #define MAXXROUTES 64
 
 #define INFINITY ((unsigned short)(~0))

network.c

@@ -38,20 +38,30 @@ THE SOFTWARE.
 #include "route.h"
 #include "filter.h"
 
-struct network nets[MAXNETS];
-int numnets = 0;
+struct network *networks = NULL;
+
+static struct network *
+last_network(void)
+{
+    struct network *net = networks;
+
+    if(!net)
+        return NULL;
+
+    while(net->next)
+        net = net->next;
+
+    return net;
+}
 
 struct network *
 add_network(char *ifname)
 {
     struct network *net;
 
-    if(numnets >= MAXNETS) {
-        fprintf(stderr, "Too many networks.\n");
+    net = malloc(sizeof(struct network));
+    if(net == NULL)
         return NULL;
-    }
-
-    net = &nets[numnets];
 
     memset(net, 0, sizeof(struct network));
     net->up = 0;
@@ -65,7 +75,11 @@ add_network(char *ifname)
     net->bucket_time = now.tv_sec;
     net->bucket = BUCKET_TOKENS_MAX;
     net->hello_seqno = (random() & 0xFFFF);
-    numnets++;
+
+    if(networks == NULL)
+        networks = net;
+    else
+        last_network()->next = net;
     return net;
 }
 

network.h

@@ -21,6 +21,7 @@ THE SOFTWARE.
 */
 
 struct network {
+    struct network *next;
     int up;
     unsigned int ifindex;
     int wired;
@@ -45,10 +46,10 @@ struct network {
     unsigned int self_update_interval;
 };
 
-extern struct network nets[MAXNETS];
+extern struct network *networks;
 extern int numnets;
 
-#define FOR_ALL_NETS(_net) for(_net = nets; _net < nets + numnets; _net++)
+#define FOR_ALL_NETS(_net) for(_net = networks; _net; _net = _net->next)
 
 struct network *add_network(char *ifname);
 int network_idle(struct network *net);