--- /dev/null
+#!/usr/bin/python
+
+# Copyright 2011 Peter Palfrader
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import datetime
+import socket
+import optparse
+import sys
+
+parser = optparse.OptionParser()
+parser.set_usage("%prog <hostname> [<hostname> ..]")
+parser.add_option("-t", "--timeout", dest="timeout", metavar="TIMEOUT",
+ type="int", default=500,
+ help="Resolve timeout in msecs [500].")
+(options, args) = parser.parse_args()
+
+if len(args) == 0:
+ parser.print_help()
+ sys.exit(4)
+
+def check(hostname):
+ now = datetime.datetime.now()
+ try:
+ socket.gethostbyname(hostname)
+ except:
+ return None
+ then = datetime.datetime.now()
+
+ td = then - now
+ msecs = td.microseconds/1000 + (td.seconds + td.days * 24 * 3600) * 1000
+ return msecs
+
+msg = []
+ret = 0
+oklist = []
+slowlist = []
+faillist = []
+for hostname in args:
+ time = check(hostname)
+ if time is None:
+ faillist.append(hostname)
+ ret = 2
+ elif time > options.timeout:
+ slowlist.append(hostname)
+ ret = max(ret, 1)
+ else:
+ oklist.append(hostname)
+
+if len(faillist) > 0: msg.append("FAILED: %s"%(', '.join(faillist)))
+if len(slowlist) > 0: msg.append("SLOW: %s"%(', '.join(slowlist)))
+if len(oklist) > 0: msg.append("OK: %s"%(', '.join(oklist)))
+
+print '; '.join(msg)
+sys.exit(ret)
+
+# vim:set et:
+# vim:set ts=4:
+# vim:set shiftwidth=4: