net.lisp: Add docstring for `string-subipnet'.

[zone] / net.lisp

diff --git a/net.lisp b/net.lisp
index c8852f9..7480b3c 100644 (file)
--- a/net.lisp
+++ b/net.lisp
@@ -156,8 +156,8 @@
     (eq (class-of addr-a) (class-of addr-b))))
 
 (defun guess-address-class (str &key (start 0) (end nil))
-  (declare (ignore str start end))
-  'ip4addr)
+  (cond ((position #\: str :start start :end end) 'ip6addr)
+       (t 'ip4addr)))
 
 (defgeneric parse-partial-ipaddr (class str &key start end min max)
   (:method ((object t) str &rest keywords)
@@ -244,7 +244,7 @@
     (let ((w (ipaddr-width addr)))
       (if (<= 0 mask w)
          (integer-netmask w mask)
-         (error "Mask out of range.")))))
+         (error "Prefix length out of range.")))))
 
 (export 'mask-ipaddr)
 (defun mask-ipaddr (addr mask)
@@ -315,7 +315,7 @@
   (print-unreadable-object (ipn stream :type t)
     (write-string (ipnet-string ipn) stream)))
 
-(defun parse-subnet (class  width max str &key (start 0) (end nil))
+(defun parse-subnet (class width max str &key (start 0) (end nil))
   "Parse a subnet description from a (substring of) STR."
   (setf-default end (length str))
   (let ((sl (position #\/ str :start start :end end)))
@@ -376,6 +376,7 @@
 
 (export 'string-subipnet)
 (defun string-subipnet (ipn str &key (start 0) (end nil))
+  "Parse an IP subnet from a parent net IPN and a suffix string STR."
   (setf str (stringify str))
   (let* ((addr-class (extract-class-name (ipnet-net ipn)))
         (width (ipaddr-width addr-class))