CNAME xvm.mit.edu to sipb-xen-dev.mit.edu

svn path=/trunk/packages/sipb-xen-dns/; revision=508

diff --git a/code/dnsserver.py b/code/dnsserver.py
index 1a188c6..3d6c296 100755 (executable)
--- a/code/dnsserver.py
+++ b/code/dnsserver.py
@@ -43,27 +43,30 @@ class DatabaseAuthority(common.ResolverBase):
         if name.lower() in self.domains:
             domain = name.lower()
         else:
-            found = False
             for domain in self.domains:
                 if name.lower().endswith('.'+domain):
-                    found = True
                     break
-            if not found:
-                #Not us
+            else: #Not us
                 return defer.fail(failure.Failure(dns.DomainError(name)))
         results = []
         if cls == dns.IN and type in (dns.A, dns.ALL_RECORDS):
             host = name[:-len(domain)-1]
-            value = sipb_xen_database.Machine.get_by(name=host)
-            if value is None or not value.nics:
-                return defer.fail(failure.Failure(dns.AuthoritativeDomainError(name)))
-            ip = value.nics[0].ip
-            if ip is None:  #Deactivated?
-                return defer.fail(failure.Failure(dns.AuthoritativeDomainError(name)))
-            ttl = 900
-            record = dns.Record_A(ip, ttl)
-            results.append(dns.RRHeader(name, dns.A, dns.IN, 
-                                        ttl, record, auth=True))
+            if not host:
+                ttl = 900
+                record = dns.Record_CNAME('sipb-xen-dev.mit.edu', ttl)
+                results.append(dns.RRHeader(name, dns.CNAME, dns.IN, 
+                                            ttl, record, auth=True))
+            else:
+                value = sipb_xen_database.Machine.get_by(name=host)
+                if value is None or not value.nics:
+                    return defer.fail(failure.Failure(dns.AuthoritativeDomainError(name)))
+                ip = value.nics[0].ip
+                if ip is None:  #Deactivated?
+                    return defer.fail(failure.Failure(dns.AuthoritativeDomainError(name)))
+                ttl = 900
+                record = dns.Record_A(ip, ttl)
+                results.append(dns.RRHeader(name, dns.A, dns.IN, 
+                                            ttl, record, auth=True))
         authority = []
         authority.append(dns.RRHeader(domain, dns.SOA, dns.IN, 3600,
                                       self.soa, auth=True))