From: Bob Halley <halley@dnspython.org>
Date: Wed, 18 Jan 2006 07:26:51 +0000 (+0000)
Subject: add rdata validate() method
X-Git-Tag: v1.4.0~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c437c6badbabccb622a5f22aa4045fc9f41157a2;p=thirdparty%2Fdnspython.git

add rdata validate() method
---

diff --git a/ChangeLog b/ChangeLog
index 70704975..d8b0aad9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2006-01-18  Bob Halley  <halley@dnspython.org>
+
+	* dns/rdata.py: added a validate() method to the rdata class.  If
+	  you change an rdata by assigning to its fields, it is a good
+	  idea to call validate() when you are done making changes.
+	  For example, if 'r' is an MX record and then you execute:
+
+		r.preference = 100000   # invalid, because > 65535
+		r.validate()
+
+	  The validation will fail and an exception will be raised.
+
 2006-01-11  Bob Halley  <halley@dnspython.org>
 
 	* dns/ttl.py: TTLs are now bounds checked to be within the closed
diff --git a/dns/rdata.py b/dns/rdata.py
index b7ac81dd..3ca3bfb2 100644
--- a/dns/rdata.py
+++ b/dns/rdata.py
@@ -169,6 +169,14 @@ class Rdata(object):
         """
         
         raise NotImplementedError
+
+    def validate(self):
+        """Check that the current contents of the rdata's fields are
+        valid.  If you change an rdata by assigning to its fields,
+        it is a good idea to call validate() when you are done making
+        changes.
+        """
+        dns.rdata.from_text(self.rdclass, self.rdtype, self.to_text())
         
     def __repr__(self):
 	covers = self.covers()