From: Amos Jeffries <squid3@treenet.co.nz>
Date: Tue, 24 Sep 2013 14:19:08 +0000 (-0600)
Subject: Use IPv6 localhost nameserver on DNS configuration errors
X-Git-Tag: SQUID_3_5_0_1~634
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=747552d8a1af615910e0eac0d5b23383372f743d;p=thirdparty%2Fsquid.git

Use IPv6 localhost nameserver on DNS configuration errors

When DNS configuration fails to locate a set of nameservers "localhost"
is used as the default but has previously only been setting 127.0.0.1
IPv4 address for localhost. This enables the failover to work as designed
on IPv6-only networks.
---

diff --git a/src/dns_internal.cc b/src/dns_internal.cc
index 47810177bf..0cc3d61626 100644
--- a/src/dns_internal.cc
+++ b/src/dns_internal.cc
@@ -1612,6 +1612,8 @@ dnsInit(void)
 #endif
 
         debugs(78, DBG_IMPORTANT, "or use the 'dns_nameservers' option in squid.conf.");
+        if (Ip::EnableIpv6)
+            idnsAddNameserver("::1");
         idnsAddNameserver("127.0.0.1");
     }