IP of "zero" means "only delete"

diff --git a/ddnset.go b/ddnset.go
index 4328d78f0258954b8113705ad1eaac0eaad92f90..23f17c0304cf2f3a8ef82aa8c66dc220e56243a7 100644 (file)
--- a/ddnset.go
+++ b/ddnset.go
@@ -175,9 +175,15 @@ func knsupdate(host, ip, zone string, ver int) bool {
        fmt.Fprintf(tmpfile, "server 127.0.0.1\n")
        fmt.Fprintf(tmpfile, "zone %s\n", zone)
        fmt.Fprintf(tmpfile, "del %s 300 IN %s\n", host, rectype)
-       fmt.Fprintf(tmpfile, "add %s 300 IN %s %s\n", host, rectype, ip)
+       if "::" != ip && "0.0.0.0" != ip {
+               fmt.Fprintf(tmpfile, "add %s 300 IN %s %s\n", host, rectype, ip)
+       }
        fmt.Fprintf(tmpfile, "send\n")
        tmpfile.Close()
+       /*
+               data, _ := ioutil.ReadFile(tmpfile.Name())
+               log.Printf("%s\n", data)
+       */
        out, err := exec.Command("/usr/bin/knsupdate", tmpfile.Name()).Output()
 
        if err != nil {
@@ -289,15 +295,26 @@ func rootHandle(w http.ResponseWriter, r *http.Request) {
        log.Print("User hosts: ", hosts)
        //check ip
        q := r.URL.Query()
-
-       myip := "0.0.0.0"
-       ver := 4
+       log.Print("q: ", q)
+       myip := "[unset]"
+       ver := 0
        valid := false
        myip_count := len(q["myip"])
        log.Print("myips: ", myip_count)
        if !hostip {
                if myip_count == 1 {
-                       myip, ver, valid = checkIP(q["myip"][0]) //one IP to rule them all
+                       myip = q["myip"][0]
+                       if "::" == myip {
+                               ver = 6
+                               valid = true
+                               log.Printf("delete AAAA req")
+                       } else if "0.0.0.0" == myip {
+                               ver = 4
+                               valid = true
+                               log.Printf("delete A req")
+                       } else {
+                               myip, ver, valid = checkIP(myip) //one IP to rule them all
+                       }
                }
                log.Printf("IP: %s (valid:%v, ver:%d)", myip, valid, ver)
                if !valid {