scan interface addresses, and send nsupdate

1 files changed, 29 insertions, 0 deletions

diff --git a/addr.go b/addr.go
new file mode 100644
index 0000000..080f11b
--- /dev/null
+++ b/addr.go
@@ -0,0 +1,29 @@
+package main
+
+import (
+	"net"
+	"github.com/miekg/dns"
+)
+
+type Addr struct {
+	IP		net.IP
+}
+
+func (addr Addr) buildRR(name string, ttl int) dns.RR {
+	if ip4 := addr.IP.To4(); ip4 != nil {
+		return &dns.A{
+			Hdr: dns.RR_Header{Name: name, Rrtype: dns.TypeA, Class: dns.ClassINET, Ttl: uint32(ttl)},
+			A:	 ip4,
+		}
+	}
+
+	if ip6 := addr.IP.To16(); ip6 != nil {
+		return &dns.AAAA{
+			Hdr:  dns.RR_Header{Name: name, Rrtype: dns.TypeAAAA, Class: dns.ClassINET, Ttl: uint32(ttl)},
+			AAAA: ip6,
+		}
+	}
+
+	return nil
+}
+