From 1c0bfa3fd5d75950d78f0146ce99d51b5efb6377 Mon Sep 17 00:00:00 2001
From: Bernard Blackham <dagobah@ucc.asn.au>
Date: Sun, 1 Aug 2004 06:05:27 +0000
Subject: [PATCH 1/1] Only su if we're root.

---
 sql-edition/servers/VendServer.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sql-edition/servers/VendServer.py b/sql-edition/servers/VendServer.py
index 4e0b16c..cad1c39 100755
--- a/sql-edition/servers/VendServer.py
+++ b/sql-edition/servers/VendServer.py
@@ -15,6 +15,7 @@ from random import random, seed
 from Idler import TrainIdler,GrayIdler
 import socket
 from traceback import print_tb
+from posix import geteuid
 
 GREETING = 'UCC SNACKS'
 PIN_LENGTH = 4
@@ -340,7 +341,10 @@ def run_forever(rfh, wfh, options, cf):
 					# XXX this should move somewhere else:
 					if cur_selection == '55':
 						mk.set_message('OPENSESAME')
-						ret = os.system('su - "%s" -c "dispense door"'%username)
+						if geteuid() == 0:
+							ret = os.system('su - "%s" -c "dispense door"'%username)
+						else:
+							ret = os.system('dispense door')
 						if ret == 0:
 							mk.set_message(center('DOOR OPEN'))
 						else:
-- 
2.20.1