From d2a3e8f44fc80805cbf2a31d13ee5b465d1a437c Mon Sep 17 00:00:00 2001
From: Miroslav Stampar <miroslav.stampar@gmail.com>
Date: Sat, 11 Dec 2010 11:17:24 +0000
Subject: [PATCH] first time firebird error-based query success

---
 lib/core/common.py | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/lib/core/common.py b/lib/core/common.py
index 154a87a78..47546fca0 100644
--- a/lib/core/common.py
+++ b/lib/core/common.py
@@ -1708,11 +1708,22 @@ def removeDynamicContent(page):
 
 def isDBMSVersionAtLeast(version):
     retVal = None
+    try:
+        version = float(version)
+    except ValueError, _:
+        raise sqlmapSyntaxException, "parameter version (%s) must be a floating point number" % version
 
-    if version:
-        if not isinstance(version, basestring):
-            version = str(version)
-        if kb.dbmsVersion and kb.dbmsVersion[0] != "Unknown" and kb.dbmsVersion[0] != None:
-            retVal = kb.dbmsVersion[0] >= version
+    if kb.dbmsVersion and kb.dbmsVersion[0] != "Unknown" and kb.dbmsVersion[0] != None:
+        value = kb.dbmsVersion[0].replace(" ", "")
+        if isinstance(value, basestring):
+            if value.startswith(">="):
+                value = float(value.replace(">=", ""))
+            elif value.startswith(">"):
+                value = float(value.replace(">", "")) + 0.01
+            elif value.startswith("<="):
+                value = float(value.replace("<=", ""))
+            elif value.startswith(">"):
+                value = float(value.replace("<", "")) - 0.01
+        retVal = value >= version
 
     return retVal