From 7d036ab584eb2f6f0a68d3db8c1f06d1cc30491a Mon Sep 17 00:00:00 2001
From: Amos Jeffries <squid3@treenet.co.nz>
Date: Tue, 14 Oct 2014 00:27:42 -0700
Subject: [PATCH] Bug 4024: Bad host/IP ::1 when using IPv4-only environment

---
 src/acl/Ip.cc | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/acl/Ip.cc b/src/acl/Ip.cc
index 96397a0b74..b799c7f9b3 100644
--- a/src/acl/Ip.cc
+++ b/src/acl/Ip.cc
@@ -384,10 +384,15 @@ acl_ip_data::FactoryParse(const char *t)
 
         int errcode = getaddrinfo(addr1,NULL,&hints,&hp);
         if (hp == NULL) {
-            debugs(28, DBG_CRITICAL, "aclIpParseIpData: Bad host/IP: '" << addr1 <<
-                   "' in '" << t << "', flags=" << hints.ai_flags <<
-                   " : (" << errcode << ") " << gai_strerror(errcode) );
-            self_destruct();
+            if (strcmp(addr1, "::1") == 0) {
+                debugs(28, DBG_IMPORTANT, "aclIpParseIpData: IPv6 has not been enabled in host DNS resolver.");
+                delete q;
+            } else {
+                debugs(28, DBG_CRITICAL, "aclIpParseIpData: Bad host/IP: '" << addr1 <<
+                       "' in '" << t << "', flags=" << hints.ai_flags <<
+                       " : (" << errcode << ") " << gai_strerror(errcode) );
+                self_destruct();
+            }
             return NULL;
         }
 
-- 
2.47.3