More foolproofing for gen_csrss_offsets

forklib/gen_csrss_offsets.py

@@ -4,6 +4,15 @@
 # Run with python2, NOT PYTHON3!
 
 import sys, os
+
+if not (sys.maxsize > 2**32) and os.name == 'nt':
+    print('Sorry, 32-bit python is not supported because of WOW64 redirection. Please use 64-bit python')
+    raise ValueError('Unsupported python version')
+
+if sys.version_info >= (3, 0):
+    print("Sorry, python3 isn't supported")
+    raise ValueError('Unsupported python version')
+
 import os.path
 from pefile import PE
 from shutil import copyfileobj
@@ -20,6 +29,7 @@ except ImportError:
     from urllib2 import urlopen, Request, HTTPError, build_opener
     from urllib import FancyURLopener
 
+
 #SYM_URL = 'http://symbols.mozilla.org/firefox'
 SYM_URLS = ['http://msdl.microsoft.com/download/symbols']
 USER_AGENT = "Microsoft-Symbol-Server/6.11.0001.404"