3 files changed, 61 insertions, 0 deletions
diff --git a/config.go b/config.go
new file mode 100644
index 0000000..8a11d58
--- /dev/null
+++ b/config.go
@@ -0,0 +1,25 @@
+package main
+
+import (
+	"encoding/json"
+	"os"
+)
+
+type config struct {
+	User      string
+	Passwd    string
+	Link      string
+	PrefixLen int
+	Records4  []int
+	Records6  []int
+}
+
+func (c *config) parse(location string) error {
+	f, err := os.Open(location)
+	if err != nil {
+		return err
+	}
+	defer f.Close()
+
+	return json.NewDecoder(f).Decode(c)
+}
diff --git a/dyndns.go b/dyndns.go
index 47f8513..c6f2c79 100644
--- a/dyndns.go
+++ b/dyndns.go
@@ -1,2 +1,33 @@
 // dyndns is a dual-stack DynDNS client that uses the INWX JSON-RPC API.
 package main
+
+import (
+	"flag"
+	"log"
+	"net"
+)
+
+func main() {
+	const usage = "override the default config path"
+	configFile := flag.String("config", "/etc/dyndns.conf", usage)
+
+	config := &config{}
+	if err := config.parse(*configFile); err != nil {
+		log.Fatal(err)
+	}
+
+	update4 := make(chan net.IPAddr)
+	update6 := make(chan net.IPNet)
+
+	go monitorIf4(update4)
+	go monitorIf6(update6)
+
+	for {
+		select {
+		case newAddr := <-update4:
+			// TODO
+		case newPrefix := <-update6:
+			// TODO
+		}
+	}
+}
diff --git a/log.go b/log.go
new file mode 100644
index 0000000..e7aca57
--- /dev/null
+++ b/log.go
@@ -0,0 +1,5 @@
+package main
+
+import "log"
+
+var logger = log.Default()