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bug#23606: 25.1.50; "localhost" vs. "127.0.0.1"
From: |
Ken Brown |
Subject: |
bug#23606: 25.1.50; "localhost" vs. "127.0.0.1" |
Date: |
Tue, 24 May 2016 14:35:17 -0400 |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.1.0 |
On 5/24/2016 1:20 PM, Achim Gratz wrote:
> Ken Brown writes:
>> The test echo-server-nowait in test/lisp/net/network-stream-tests.el
>> fails on Cygwin, but it passes if I create the client process using
>> "127.0.0.1" instead of "localhost":
>
> This could be a case where it makes a difference if the IPv6 (::1) or
> IPv4 address is returned (first) for localhost. IIRC, Windows and
> up-to-date Linux prefer IPv6 by default. If so, it would likely be
> better to fix the parts of the code that assumes return of IPv4
> addresses only.
You're right. In the test in question, IPv4 is specified for the server but
not for the client. The test passes on Cygwin if I specify IPv4 for the client
also:
diff --git a/test/lisp/net/network-stream-tests.el
b/test/lisp/net/network-stream-tests.el
index c9b7cc7..f30c92a 100644
--- a/test/lisp/net/network-stream-tests.el
+++ b/test/lisp/net/network-stream-tests.el
@@ -145,6 +145,7 @@ server-process-filter
:buffer (generate-new-buffer "*foo*")
:host "localhost"
:nowait t
+ :family 'ipv4
:service port)))
(should (eq (process-status proc) 'connect))
(while (eq (process-status proc) 'connect)
Glenn, does this also fix the problem on RHEL 7.2?
Ken