From e52e2c9f491a66c8dad6ff019eda57f291ff946b Mon Sep 17 00:00:00 2001
From: kris <kris@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Mon, 19 Mar 2007 19:52:41 +0000
Subject: [PATCH] Bail out of Traceroute::trace() if no valid targets are
 available.  If we were trying to traceroute a machine that's directly
 connected, the "Initiating"/"Completed" messages would still appear even
 though no tracing would be done.

---
 traceroute.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/traceroute.cc b/traceroute.cc
index ac4e98e91..3a3dac14a 100644
--- a/traceroute.cc
+++ b/traceroute.cc
@@ -814,6 +814,9 @@ Traceroute::trace (vector < Target * >&Targets) {
      * legitimate to trace to */
     sendTTLProbes (Targets, valid_targets);
 
+    if (!valid_targets.size())
+        return;
+
     SPM = new ScanProgressMeter ("Traceroute");
 
     while (!readTraceResponses ()) {