adding switch --eval

lib/core/common.py

@@ -3135,4 +3135,11 @@ def getHostHeader(url):
     if any(map(lambda x: retVal.endswith(':%d' % x), [80, 443])):
         retVal = retVal.split(':')[0]
 
-    return retVal
+    return retVal
+
+def executeCode(code, variables=None):
+    try:
+        exec(code, variables)
+    except Exception, ex:
+        errMsg = "an error occured while evaluating provided code ('%s'). " % ex
+        raise sqlmapGenericException, errMsg