From 31860ab8c83b35b21f331c85e4535b08b13dc8f9 Mon Sep 17 00:00:00 2001
From: "Romulo A. Ceccon" <romuloceccon@gmail.com>
Date: Tue, 28 Jan 2014 11:59:14 -0200
Subject: [PATCH] hostip: don't remove DNS entries that are in use

hostcache_timestamp_remove() should remove old *unused* entries from the
host cache, but it never checked whether the entry was actually in
use. This complements commit 030a2b8cb.

Bug: http://curl.haxx.se/bug/view.cgi?id=1327
---
 lib/hostip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/hostip.c b/lib/hostip.c
index 5837e64c7..61d238acd 100644
--- a/lib/hostip.c
+++ b/lib/hostip.c
@@ -237,7 +237,7 @@ hostcache_timestamp_remove(void *datap, void *hc)
     (struct hostcache_prune_data *) datap;
   struct Curl_dns_entry *c = (struct Curl_dns_entry *) hc;
 
-  return (data->now - c->timestamp >= data->cache_timeout);
+  return !c->inuse && (data->now - c->timestamp >= data->cache_timeout);
 }
 
 /*