# HG changeset patch
# User Tobias Markmann <tm@ayena.de>
# Date 1251489791 -7200
# Node ID e92339c48ee693a3c84f7ba764c391e738385db9
# Parent  0d1740f7b6e8f03964e1d10a999ab4f42a6168b3
Fail if mechanism has already been selected.

diff -r 0d1740f7b6e8 -r e92339c48ee6 util/sasl.lua
--- a/util/sasl.lua	Fri Aug 28 22:01:58 2009 +0200
+++ b/util/sasl.lua	Fri Aug 28 22:03:11 2009 +0200
@@ -102,6 +102,10 @@
 
 -- select a mechanism to use
 function method:select(mechanism)
+	if self.mech_i then
+		return false;
+	end
+	
 	self.mech_i = mechanisms[mechanism]
 	if self.mech_i == nil then 
 		return false;