#:zone-find #:zone-parse #:zone-write #:zone-create #:defzone
#:defrevzone #:zone-save #:zone-make-name
#:defzoneparse #:zone-parse-host
+ #:bind-hostname #:bind-record #:bind-format-record
+ #:bind-record-type #:bind-record-format-args
#:timespec-seconds #:make-zone-serial))
(in-package #:zone)
;;;--------------------------------------------------------------------------
;;; Zone file output.
-(defun zone-write (zone &optional (stream *standard-output*))
- "Write a ZONE's records to STREAM."
- (labels ((fix-admin (a)
- (let ((at (position #\@ a))
- (s (concatenate 'string (string-downcase a) ".")))
- (when s
- (setf (char s at) #\.))
- s))
- (fix-host (h)
- (if (not h)
- "@"
- (let* ((h (string-downcase (stringify h)))
- (hl (length h))
- (r (string-downcase (zone-name zone)))
- (rl (length r)))
- (cond ((string= r h) "@")
- ((and (> hl rl)
- (char= (char h (- hl rl 1)) #\.)
- (string= h r :start1 (- hl rl)))
- (subseq h 0 (- hl rl 1)))
- (t (concatenate 'string h "."))))))
- (printrec (zr)
- (format stream "~A~20T~@[~8D~]~30TIN ~A~40T"
- (fix-host (zr-name zr))
- (and (/= (zr-ttl zr) (zone-default-ttl zone))
- (zr-ttl zr))
- (string-upcase (symbol-name (zr-type zr))))))
- (format stream "~
+(defgeneric zone-write (format zone stream)
+ (:documentation "Write ZONE's records to STREAM in the specified FORMAT."))
+
+(defvar *writing-zone* nil
+ "The zone currently being written.")
+
+(defvar *zone-output-stream* nil
+ "Stream to write zone data on.")
+
+(defmethod zone-write :around (format zone stream)
+ (let ((*writing-zone* zone)
+ (*zone-output-stream* stream))
+ (call-next-method)))
+
+(defun zone-save (zones &key (format :bind))
+ "Write the named ZONES to files. If no zones are given, write all the
+ zones."
+ (unless zones
+ (setf zones (hash-table-keys *zones*)))
+ (safely (safe)
+ (dolist (z zones)
+ (let ((zz (zone-find z)))
+ (unless zz
+ (error "Unknown zone `~A'." z))
+ (let ((stream (safely-open-output-stream safe
+ (zone-file-name z :zone))))
+ (zone-write format zz stream))))))
+
+;;;--------------------------------------------------------------------------
+;;; Bind format output.
+
+(defun bind-hostname (hostname)
+ (if (not hostname)
+ "@"
+ (let* ((h (string-downcase (stringify hostname)))
+ (hl (length h))
+ (r (string-downcase (zone-name *writing-zone*)))
+ (rl (length r)))
+ (cond ((string= r h) "@")
+ ((and (> hl rl)
+ (char= (char h (- hl rl 1)) #\.)
+ (string= h r :start1 (- hl rl)))
+ (subseq h 0 (- hl rl 1)))
+ (t (concatenate 'string h "."))))))
+
+(defmethod zone-write ((format (eql :bind)) zone stream)
+ (format stream "~
;;; Zone file `~(~A~)'
;;; (generated ~A)
(zone-name zone)
(iso-date :now :datep t :timep t)
(zone-default-ttl zone))
- (let ((soa (zone-soa zone)))
+ (let* ((soa (zone-soa zone))
+ (admin (let* ((name (soa-admin soa))
+ (at (position #\@ name))
+ (copy (format nil "~(~A~)." name)))
+ (when at
+ (setf (char copy at) #\.))
+ copy)))
(format stream "~
~A~30TIN SOA~40T~A ~A (
~45T~10D~60T ;serial
~45T~10D~60T ;retry
~45T~10D~60T ;expire
~45T~10D )~60T ;min-ttl~2%"
- (fix-host (zone-name zone))
- (fix-host (soa-source soa))
- (fix-admin (soa-admin soa))
+ (bind-hostname (zone-name zone))
+ (bind-hostname (soa-source soa))
+ admin
(soa-serial soa)
(soa-refresh soa)
(soa-retry soa)
(soa-expire soa)
(soa-min-ttl soa)))
- (dolist (zr (zone-records zone))
- (ecase (zr-type zr)
- (:a
- (printrec zr)
- (format stream "~A~%" (ipaddr-string (zr-data zr))))
- ((:ptr :cname :ns)
- (printrec zr)
- (format stream "~A~%" (fix-host (zr-data zr))))
- (:mx
- (printrec zr)
- (let ((mx (zr-data zr)))
- (format stream "~2D ~A~%" (cdr mx) (fix-host (car mx)))))
- (:txt
- (printrec zr)
- (format stream "~S~%" (stringify (zr-data zr))))))))
-
-(defun zone-save (zones)
- "Write the named ZONES to files. If no zones are given, write all the
- zones."
- (unless zones
- (setf zones (hash-table-keys *zones*)))
- (safely (safe)
- (dolist (z zones)
- (let ((zz (zone-find z)))
- (unless zz
- (error "Unknown zone `~A'." z))
- (let ((stream (safely-open-output-stream safe
- (zone-file-name z :zone))))
- (zone-write zz stream))))))
+ (dolist (zr (zone-records zone))
+ (bind-record (zr-type zr) zr)))
+
+(defgeneric bind-record (type zr))
+
+(defun bind-format-record (name ttl type format args)
+ (format *zone-output-stream*
+ "~A~20T~@[~8D~]~30TIN ~A~40T~?~%"
+ (bind-hostname name)
+ (and (/= ttl (zone-default-ttl *writing-zone*))
+ ttl)
+ (string-upcase (symbol-name type))
+ format args))
+
+(defmethod bind-record (type zr)
+ (destructuring-bind (format &rest args)
+ (bind-record-format-args type (zr-data zr))
+ (bind-format-record (zr-name zr)
+ (zr-ttl zr)
+ (bind-record-type type)
+ format args)))
+
+(defgeneric bind-record-type (type)
+ (:method (type) type))
+
+(defgeneric bind-record-format-args (type data)
+ (:method ((type (eql :a)) data) (list "~A" (ipaddr-string data)))
+ (:method ((type (eql :ptr)) data) (list "~A" (bind-hostname data)))
+ (:method ((type (eql :cname)) data) (list "~A" (bind-hostname data)))
+ (:method ((type (eql :ns)) data) (list "~A" (bind-hostname data)))
+ (:method ((type (eql :mx)) data)
+ (list "~2D ~A" (cdr data) (bind-hostname (car data))))
+ (:method ((type (eql :txt)) data) (list "~S" (stringify data))))
;;;----- That's all, folks --------------------------------------------------
~mdw / zone / blobdiff