# HG changeset patch
# User Matthew Wild <mwild1@gmail.com>
# Date 1284831332 -3600
# Node ID ce892ac8bec2932ef3e711d571707b0c94bab9d3
# Parent  d17a1b6598523b86a7f71b5163b6ab5c6766d324
Warn and exit when no JID is supplied

diff -r d17a1b659852 -r ce892ac8bec2 capscan.lua
--- a/capscan.lua	Sat Sep 18 18:19:37 2010 +0100
+++ b/capscan.lua	Sat Sep 18 18:35:32 2010 +0100
@@ -13,6 +13,11 @@
 local xmlns_caps = "http://jabber.org/protocol/caps";
 local xmlns_disco = "http://jabber.org/protocol/disco#info";
 
+if not jid then
+	io.write("Please give a JID as the first argument\n");
+	os.exit(1);
+end
+
 if not pass then
 	io.write("Password (not blanked): ");
 	pass = io.read("*l");