Reverse zones: other views' addresses aren't missing PTRs

A reverse zone's missing PTR count covers only its own view's A and
AAAA records. Addresses only other views' records use are counted apart
(ptr_other_views, 'Other views' in zone show, a note on the zone page)
and filled only when asked: fill-ptr --other-views, zone create
--fill --other-views, or the New reverse zone dialog's checkbox. This
keeps one view's host names out of another view's reverse zones.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

cmd/jarl/zones.go

@@ -101,6 +101,9 @@ func zoneCmd() *cobra.Command {
 					if z.PTRMissing > 0 {
 						fmt.Fprintf(w, "Missing PTRs:\t%d (addresses the view's records use here; add them: jarl zone fill-ptr %s)\n", z.PTRMissing, args[0])
 					}
+					if z.PTROtherViews > 0 {
+						fmt.Fprintf(w, "Other views:\t%d addresses here only other views' records use, without a PTR record (to name them from there: jarl zone fill-ptr %s --other-views)\n", z.PTROtherViews, args[0])
+					}
 				}
 				if len(z.LinkedWith) > 0 {
 					fmt.Fprintf(w, "Linked with:\t%s (shared records are kept in step; 'jarl record list' shows which are local)\n", strings.Join(z.LinkedWith, ", "))
@@ -119,7 +122,7 @@ func zoneCmd() *cobra.Command {
 	var ns, records, primaries, forwarders, opts []string
 	var contact, comment, cloneFrom, file, inView, forward, linkWith string
 	var ttl uint32
-	var fill bool
+	var fill, fillOther bool
 	create := &cobra.Command{
 		Use:   "create NAME",
 		Short: "Create a zone",
@@ -128,7 +131,8 @@ create its reverse zone: a /32 (or /128) gives a zone for that one address,
 and a network between octet boundaries, like a /22, gets one zone per /24
 (created together). Without --view, a reverse zone goes to the private
 view whose records use its addresses; --fill adds a PTR record for each
-of them (docs/reverse.md).
+of them, and --other-views also for the addresses only other views'
+records use, named from there (docs/reverse.md).
 
   jarl zone create example.com --ns ns1.example.com. --record "ns1 A 192.0.2.1"
   jarl zone create 192.168.1.0/24
@@ -169,9 +173,12 @@ of them (docs/reverse.md).
 			if linkWith != "" {
 				body["link_with"] = linkWith
 			}
-			if fill {
+			if fill || fillOther {
 				body["fill"] = true
 			}
+			if fillOther {
+				body["fill_other_views"] = true
+			}
 			var recs []map[string]any
 			for _, r := range records {
 				f := strings.Fields(r)
@@ -245,6 +252,7 @@ of them (docs/reverse.md).
 	create.Flags().StringVar(&linkWith, "link-with", "", "link with the zone of the same name in this view: copy its shared records and keep them in step (docs/views.md#linked-zones)")
 	create.Flags().StringVar(&comment, "comment", "", "comment")
 	create.Flags().BoolVar(&fill, "fill", false, "reverse zones: add PTR records for the view's A and AAAA records in the network")
+	create.Flags().BoolVar(&fillOther, "other-views", false, "reverse zones: --fill, also naming the addresses only other views' records use")
 
 	var refresh, retry, expire, minimum, serial uint32
 	var mname, policy, moveView string
@@ -1168,15 +1176,21 @@ func terminalWidth() int {
 
 func zoneFillPTRCmd() *cobra.Command {
 	var view string
+	var otherViews bool
 	cmd := &cobra.Command{
-		Use:   "fill-ptr ZONE [--view VIEW]",
+		Use:   "fill-ptr ZONE [--view VIEW] [--other-views]",
 		Short: "Add the PTR records a reverse zone lacks for its view's A and AAAA records",
 		Long: `Adds a PTR record to a reverse zone for every address in its network that
 the view's A and AAAA records use and that has none yet. An address with
 several names gets the mail or name server's name, else a host's rather
-than the domain's, else the shortest (docs/reverse.md).`,
+than the domain's, else the shortest (docs/reverse.md).
+
+--other-views also adds the addresses in the network that only other
+views' records use, naming them from there. That publishes those views'
+host names in this one, so it is never done unasked.`,
 		Example: `  jarl zone fill-ptr 10.0.10.0/24
-  jarl zone fill-ptr 10.0.10.in-addr.arpa --view internal`,
+  jarl zone fill-ptr 10.0.10.in-addr.arpa --view internal
+  jarl zone fill-ptr 10.0.10.0/24 --view vps --other-views`,
 		Args: cobra.ExactArgs(1),
 		RunE: func(cmd *cobra.Command, args []string) error {
 			c, err := newClient()
@@ -1184,6 +1198,9 @@ than the domain's, else the shortest (docs/reverse.md).`,
 				return err
 			}
 			path, qv := zonePath(args[0], view)
+			if otherViews {
+				qv.Set("other_views", "1")
+			}
 			resp, err := c.Mutate(ctx(), "POST", path+"/fill-ptr", qv, nil)
 			if err != nil {
 				return err
@@ -1192,6 +1209,7 @@ than the domain's, else the shortest (docs/reverse.md).`,
 		},
 	}
 	cmd.Flags().StringVar(&view, "view", "", "view of the zone")
+	cmd.Flags().BoolVar(&otherViews, "other-views", false, "also name the addresses only other views' records use")
 	return cmd
 }
 
@@ -1231,7 +1249,9 @@ again). A view can stop suggestions: jarl view update V
 --all lists every network the views' records use without a reverse zone,
 also where nothing is suggested unasked (a view with suggestions off, a
 dismissed network, a public view), to create one by hand; --view narrows
-the list to one view. Change the size as you need: a /48 suggested for
+the list to one view and adds the networks only other views' records use
+(hidden "records in VIEW"): create one with --fill --other-views to name
+them from there. Change the size as you need: a /48 suggested for
 IPv6 can be created as a /56 or /64 instead.`,
 		Example: `  jarl zone suggest-reverse
   jarl zone suggest-reverse --create