File PR-459.patch of Package python-eventlet

From 6ad13590aff7d6544443e6646555d949bd316796 Mon Sep 17 00:00:00 2001
From: Ralf Haferkamp <rhafer@suse.de>
Date: Fri, 12 Jan 2018 13:48:09 +0100
Subject: [PATCH] greendns: Treat /etc/hosts entries case-insensitive

Hostname in /etc/hosts are not case-sensitive, this fixes
HostsResolver() accordingly.

eventlet#458

Co-Authored-By: Thomas Bechtold <tbechtold@suse.com>
---
 eventlet/support/greendns.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/eventlet/support/greendns.py b/eventlet/support/greendns.py
index cff0581c..140388ec 100644
--- a/eventlet/support/greendns.py
+++ b/eventlet/support/greendns.py
@@ -222,9 +222,10 @@ def _load(self):
                 ipmap = self._v6
             else:
                 continue
-            cname = parts.pop(0)
+            cname = parts.pop(0).lower()
             ipmap[cname] = ip
             for alias in parts:
+                alias = alias.lower()
                 ipmap[alias] = ip
                 self._aliases[alias] = cname
         self._last_load = time.time()
@@ -251,6 +252,7 @@ def query(self, qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN,
             qname = dns.name.from_text(qname)
         else:
             name = str(qname)
+        name = name.lower()
         rrset = dns.rrset.RRset(qname, rdclass, rdtype)
         rrset.ttl = self._last_load + self.interval - now
         if rdclass == dns.rdataclass.IN and rdtype == dns.rdatatype.A: