From e501b2a80b253dbecc57b6be694224685b87cc7d Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Sat, 30 Aug 2014 20:58:15 +0200
Subject: [PATCH] Minor patch

---
 lib/core/common.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/core/common.py b/lib/core/common.py
index 70768bcea..573d28bac 100755
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -576,6 +576,11 @@ def paramToDict(place, parameters=None):
                         test = readInput(message, default="N")
                         if test[0] not in ("y", "Y"):
                             raise SqlmapSilentQuitException
+                    elif not _:
+                        warnMsg = "provided value for parameter '%s' is empty. " % parameter
+                        warnMsg += "Please, always use only valid parameter values "
+                        warnMsg += "so sqlmap could be able to run properly"
+                        logger.warn(warnMsg)
 
     if conf.testParameter and not testableParameters:
         paramStr = ", ".join(test for test in conf.testParameter)