add syslog imports

2004/11/10 16:06:00-06:00 anl.gov!desai
fix lookup error

(Logical change 1.151)


git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@670 ce84e21b-d406-0410-9b95-82705330c041

1 files changed, 9 insertions, 5 deletions

diff --git a/src/lib/Server/Generators/SSHbase.py b/src/lib/Server/Generators/SSHbase.py
index eab268ec0..36c06b0fe 100644
--- a/src/lib/Server/Generators/SSHbase.py
+++ b/src/lib/Server/Generators/SSHbase.py
@@ -4,6 +4,7 @@ __revision__ = '$Revision$'
 from binascii import b2a_base64
 from os import rename, system
 from socket import gethostbyname, gaierror
+from syslog import syslog, LOG_ERR
 
 from Bcfg2.Server.Generator import Generator, DirectoryBacked
 
@@ -50,11 +51,14 @@ class SSHbase(Generator):
         '''This function builds builds a host specific known_hosts file'''
         client = metadata.hostname
         filedata = self.repository.entries['ssh_known_hosts'].data
-        ipaddr = gethostbyname(client)
-        keylist = [keytmpl % client for keytmpl in self.pubkeys]
-        for hostkey in keylist:
-            filedata += "%s,%s,%s %s" % (client, "%s.mcs.anl.gov"%(client),
-                                         ipaddr, self.repository.entries[hostkey].data)
+        try:
+            ipaddr = gethostbyname(client)
+            # add client-specific key lines
+            for hostkey in [keytmpl % client for keytmpl in self.pubkeys]:
+                filedata += "%s,%s,%s %s" % (client, "%s.mcs.anl.gov"%(client),
+                                             ipaddr, self.repository.entries[hostkey].data)
+        except gaierror:
+            syslog(LOG_ERR, "SSHbase: DNS lookup failed for client %s" % client)
         entry.attrib.update({'owner':'root', 'group':'root', 'perms':'0644'})
         entry.text = filedata