From 8fd7a0a46b8acf8238f414cd6b1ebfa844ffad90 Mon Sep 17 00:00:00 2001
From: david <david@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Sun, 27 Sep 2009 18:05:16 +0000
Subject: [PATCH] Always begin with a TTL of at least 1 in traceroute, even if
 OS detection calculated 0 (erroneous if not localhost). This caused an
 assertion failure reported by Chris Clements in
 http://seclists.org/nmap-dev/2009/q3/1054.html.

---
 traceroute.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/traceroute.cc b/traceroute.cc
index f051131c3..ec19c4f3d 100644
--- a/traceroute.cc
+++ b/traceroute.cc
@@ -332,7 +332,7 @@ static unsigned int hop_cache_size();
 
 HostState::HostState(Target *target) {
   this->target = target;
-  current_ttl = HostState::distance_guess(target);
+  current_ttl = MAX(1, HostState::distance_guess(target));
   state = HostState::COUNTING_DOWN;
   reached_target = 0;
   pspec = HostState::get_probe(target);