Give everyone read permissions on the temporary payloads.

This allows the injected process to read the payload regardless of what user
did the injection.

pyrasite/ipc.py

@@ -20,6 +20,7 @@
 """
 
 import os
+import stat
 import socket
 import struct
 import tempfile
@@ -138,6 +139,8 @@ class PyrasiteIPC(object):
         tmp.close()
         payload.close()
 
+        os.chmod(filename, stat.S_IREAD | stat.S_IRGRP | stat.S_IROTH)
+
         return filename
 
     def inject(self):