Merged back from personal branch to trunk (svn merge -r846:940 ...)

Changes:
* Major enhancement to the Microsoft SQL Server stored procedure
heap-based buffer overflow exploit (--os-bof) to automatically bypass
DEP memory protection.
* Added support for MySQL and PostgreSQL to execute Metasploit shellcode
via UDF 'sys_bineval' (in-memory, anti-forensics technique) as an
option instead of uploading the standalone payload stager executable.
* Added options for MySQL, PostgreSQL and Microsoft SQL Server to
read/add/delete Windows registry keys.
* Added options for MySQL and PostgreSQL to inject custom user-defined
functions.
* Added support for --first and --last so the user now has even more
granularity in what to enumerate in the query output.
* Minor enhancement to save the session by default in
'output/hostname/session' file if -s option is not specified.
* Minor improvement to automatically remove sqlmap created temporary
files from the DBMS underlying file system.
* Minor bugs fixed.
* Major code refactoring.

lib/parse/queriesfile.py

@@ -134,6 +134,10 @@ class queriesHandler(ContentHandler):
             data = sanitizeStr(attrs.get("query"))
             self.__queries.isDba = data
 
+        elif name == "check_udf":
+            data = sanitizeStr(attrs.get("query"))
+            self.__queries.checkUdf = data
+
         elif name == "inband":
             self.__inband    = sanitizeStr(attrs.get("query"))
             self.__inband2   = sanitizeStr(attrs.get("query2"))