- Added "ExternalError" exception

- Raise "ExternalError" exception in "executeCmd()" if "system()" fails


git-svn-id: https://fail2ban.svn.sourceforge.net/svnroot/fail2ban/branches/FAIL2BAN-0_5@207 a942ae1a-1317-0410-a47c-b1dcaea8d605

utils/process.py

@@ -29,6 +29,11 @@ import os, logging, signal
 # Gets the instance of the logger.
 logSys = logging.getLogger("fail2ban")
 
+class ExternalError(UserWarning):
+	""" Exception to warn about failed fwcheck or fwban command
+	"""
+	pass
+
 def createDaemon():
 	""" Detach a process from the controlling terminal and run it in the
 		background as a daemon.
@@ -126,6 +131,7 @@ def executeCmd(cmd, debug):
 		retval = os.system(cmd)
 		if not retval == 0:
 			logSys.error("'" + cmd + "' returned " + `retval`)
+			raise ExternalError("Execution of command '%s' failed" % cmd)
 		return retval
 	else:
 		return None