From d24c48a02579b812cd01f2fa32b687160dc61036 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 26 Jan 2012 22:54:59 +0000
Subject: -warn if permissions are insufficient to run test

---
 src/vpn/test_gnunet_vpn.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/vpn/test_gnunet_vpn.c b/src/vpn/test_gnunet_vpn.c
index ea96ce59b..2ef5f96e9 100644
--- a/src/vpn/test_gnunet_vpn.c
+++ b/src/vpn/test_gnunet_vpn.c
@@ -475,6 +475,18 @@ main (int argc, char *const *argv)
   struct GNUNET_GETOPT_CommandLineOption options[] = {
     GNUNET_GETOPT_OPTION_END
   };
+
+  if ( (GNUNET_YES !=
+	GNUNET_OS_check_helper_binary ("gnunet-helper-vpn")) ||
+       (GNUNET_YES !=
+	GNUNET_OS_check_helper_binary ("gnunet-helper-exit")) )
+  {
+    fprintf (stderr,
+	     "WARNING: gnunet-helper-{exit,vpn} binaries in $PATH are not SUID, refusing to run test (as it would have to fail).\n");
+    fprintf (stderr,
+	     "Change $PATH ('.' in $PATH before $GNUNET_PREFIX/bin is problematic) or permissions (run 'make install' as root) to fix this!\n");
+    return 0;
+  }
   bin = argv[0];
   if (NULL != strstr (bin, "lt-"))
     bin = strstr (bin, "lt-") + 4;
-- 
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