From f8f77ac80956c131876d1b0e24ed9c6eda53fc81 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Thu, 15 Sep 2011 12:54:56 +0000
Subject: [PATCH] check for external-ip before forking

---
 src/nat/nat_mini.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/nat/nat_mini.c b/src/nat/nat_mini.c
index ccdc83265..8014a451d 100644
--- a/src/nat/nat_mini.c
+++ b/src/nat/nat_mini.c
@@ -163,6 +163,9 @@ GNUNET_NAT_mini_get_external_ipv4 (struct GNUNET_TIME_Relative timeout,
 {
   struct GNUNET_NAT_ExternalHandle *eh;
 
+  if (GNUNET_SYSERR ==
+      GNUNET_OS_check_helper_binary ("external-ip"))
+    return NULL;
   eh = GNUNET_malloc (sizeof (struct GNUNET_NAT_ExternalHandle));
   eh->cb = cb;
   eh->cb_cls = cb_cls;
-- 
2.25.1