Added --showcfg option to display config file data

TODO

@@ -21,9 +21,9 @@ Done:
   -i ipadress
   -k keyname
   -n hostname
-  -p password
   -q quiet
-  -s showcfg *
+  -s keysecret
+  --showcfg 
   -t ttl
   -v verbose
 - Auto-detect the machine's external ip address'

dnsupdate.py

@@ -65,6 +65,9 @@ def getparams(msg):
   parser.add_option("-s", "--keysecret", 
                     type="string",
                     help="TSIG key")
+  parser.add_option("--showcfg", 
+                    type="string",
+                    help="Display config file data")
   parser.add_option("-u", "--ipurl", 
                     type="string",
                     help="URL to ip server")
@@ -90,6 +93,7 @@ def getparams(msg):
                  'keyname',
                  'keysecret',
                  'quiet',
+                 'showcfg',
                  'ttl',
                  'ipurl']
 
@@ -112,7 +116,7 @@ def getparams(msg):
 
 
 
-def readcfg(msg):
+def readcfg(msg, show=""):
   # Read the config file for pre configured values
   import os.path
   if not msg.has_key('cfgfile'):
@@ -126,11 +130,18 @@ def readcfg(msg):
       return msg
     cfgfile = open(msg['cfgfile'], 'r')
 
+  if show:
+    print "Current configuration values:"
+    
   for line in cfgfile.readlines():
     line = line.strip()
     if line.find("#", 0, 1) == 0 or not line:
       continue
     (key, value) = line.split('\t', 1)
+    
+    if show:
+      print "%s: %s" % (key.strip(), value.strip())
+     
     if not value.strip().lower() == "false":
       msg[key] = value.strip()
   
@@ -221,6 +232,11 @@ if __name__=="__main__":
   msg['error'] = []
 
   getparams(msg)
+
+  if msg.has_key('showcfg'):
+    readcfg(msg, show="config")
+    sys.exit(0)
+    
   validate(msg)
   
   err = checkerror(msg)