From d837d751bc84acfb5d1acaee460ebc1b4d72f942 Mon Sep 17 00:00:00 2001
From: david <david@e0a8ed71-7df4-0310-8962-fdc924857419>
Date: Mon, 26 Oct 2009 21:17:13 +0000
Subject: [PATCH] Don't print an rDNS record if it is blank.

---
 output.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/output.cc b/output.cc
index 6ee307457..1703c9f10 100644
--- a/output.cc
+++ b/output.cc
@@ -1428,6 +1428,7 @@ void write_host_header(Target *currenths) {
   write_host_status(currenths, o.resolve_all);
   /* Print reverse DNS if it differs. */
   if (currenths->TargetName() != NULL
+      && currenths->HostName() != NULL && currenths->HostName()[0] != '\0'
       && strcmp(currenths->TargetName(), currenths->HostName()) != 0) {
     log_write(LOG_PLAIN, "rDNS record for %s: %s\n",
       currenths->targetipstr(), currenths->HostName());