Move IP-conversion into loop

cmd/app/main.go

@@ -53,53 +53,54 @@ func main() {
 		logger.Error.Fatalf("Couldn't parse RECHECK_INTERVAL '%s': %s", checkIntervalStr, err)
 	}
 
-    // Get the IPv4 addresses of the interface
-    addrs, err := netlink.AddrList(netInterface, netlink.FAMILY_V4)
+    // Create a WireGuard client
+    client, err := wgctrl.New()
     if err != nil {
         logger.Error.Fatal(err)
     }
-    processedCount := 0
-    filteredCount := 0
-    for _, addr := range addrs {
-        // Check filter
-        if addr.String()[:len(filterPrefix)] != filterPrefix {
-            filteredCount++
-            continue
-        }
+    defer client.Close()
 
-        // Add the IPv6 address to the interface
-        ipv6Str := *convertIPv4ToIPv6(&ipv6Format, addr.IPNet)
-        ipv6, err := netlink.ParseAddr(ipv6Str)
+    // Loop indefinitely
+    for {
+        // Get the IPv4 addresses of the interface
+        addrs, err := netlink.AddrList(netInterface, netlink.FAMILY_V4)
         if err != nil {
-            logger.Warn.Printf("failed parsing converted %s -> %s : %s", addr.IPNet.String(), ipv6Str, err)
-            continue
+            logger.Error.Fatal(err)
         }
+        processedCount := 0
+        filteredCount := 0
+        for _, addr := range addrs {
+            // Check filter
+            if addr.String()[:len(filterPrefix)] != filterPrefix {
+                filteredCount++
+                continue
+            }
 
-        logger.Info.Printf("Adding converted %s -> %s to interface", addr.IPNet.String(), ipv6Str)
-        err = netlink.AddrAdd(netInterface, ipv6)
-        if err != nil {
-            switch {
-            case os.IsExist(err):
-                logger.Warn.Println("Address is already set on interface")
-            default:
-                logger.Warn.Printf("Failed to set address on interface: %v", err)
+            // Add the IPv6 address to the interface
+            ipv6Str := *convertIPv4ToIPv6(&ipv6Format, addr.IPNet)
+            ipv6, err := netlink.ParseAddr(ipv6Str)
+            if err != nil {
+                logger.Warn.Printf("failed parsing converted %s -> %s : %s", addr.IPNet.String(), ipv6Str, err)
+                continue
             }
-        }
-        processedCount++
-    }
-    if(processedCount != len(addrs)) {
-        logger.Warn.Printf("Not all Interface-Addresses were processed. Summary: %d processed, %d filtered, %d failed", processedCount, filteredCount, len(addrs)-processedCount-filteredCount)
-    }
 
-    // Create a WireGuard client
-    client, err := wgctrl.New()
-    if err != nil {
-        logger.Error.Fatal(err)
-    }
-    defer client.Close()
+            logger.Info.Printf("Adding converted %s -> %s to interface", addr.IPNet.String(), ipv6Str)
+            err = netlink.AddrAdd(netInterface, ipv6)
+            if err != nil {
+                switch {
+                case os.IsExist(err):
+                    logger.Warn.Println("Address is already set on interface")
+                default:
+                    logger.Warn.Printf("Failed to set address on interface: %v", err)
+                }
+            }
+            processedCount++
+        }
+        if processedCount != len(addrs) {
+            logger.Warn.Printf("Not all Interface-Addresses were processed. Summary: %d processed, %d filtered, %d failed", processedCount, filteredCount, len(addrs)-processedCount-filteredCount)
+        }
 
-    // Loop indefinitely
-    for {
+        
         // Get the WireGuard peers on the interface
         wgDevice, err := client.Device(iface)
         if err != nil {