From fa4e86703566746849920097ab2239bea1b0e887 Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Fri, 9 Oct 2015 14:17:13 +0200
Subject: [PATCH] Bug fix for MySQL fingerprinting (excluding HSQLDB MySQL
 look-alike)

---
 plugins/dbms/mysql/fingerprint.py | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/plugins/dbms/mysql/fingerprint.py b/plugins/dbms/mysql/fingerprint.py
index 700badb4f..a4e440df7 100644
--- a/plugins/dbms/mysql/fingerprint.py
+++ b/plugins/dbms/mysql/fingerprint.py
@@ -177,6 +177,14 @@ class Fingerprint(GenericFingerprint):
 
                 return False
 
+            result = inject.checkBooleanExpression("ROUNDMAGIC(NULL) IS NULL")
+
+            if result:
+                warnMsg = "the back-end DBMS is not %s" % DBMS.MYSQL
+                logger.warn(warnMsg)
+
+                return False
+
             # reading information_schema on some platforms is causing annoying timeout exits
             # Reference: http://bugs.mysql.com/bug.php?id=15855