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Re: Does service lookup by name work on Windows now?

From: Robert Pluim
Subject: Re: Does service lookup by name work on Windows now?
Date: Mon, 28 Jan 2019 11:12:15 +0100

Eli Zaretskii <address@hidden> writes:

>> Iʼd really like to remove that workaround, but I could leave it in,
>> conditioned on (eq system-type 'windows-nt) or similar.
> Conditioning is fine with me.  We could also look at
>   (car (x-server-version))
> It should be 5 or less for XP and older systems.

This is what I have so far.

>From 696e57b862b9d525aae1a735f922025d8fa40bfd Mon Sep 17 00:00:00 2001
From: Robert Pluim <address@hidden>
Date: Sun, 27 Jan 2019 16:13:46 +0100
Subject: [PATCH] Don't map imaps to 993 anymore except on old Windows versions
To: address@hidden

'open-network-stream' will do the imaps service lookup itself, and
using 993 forced the user to use the numeric value in .authinfo for
certificate lookups.

* lisp/gnus/nnimap.el (nnimap-map-port): Only do mapping for Windows
XP or earlier.
 lisp/gnus/nnimap.el | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lisp/gnus/nnimap.el b/lisp/gnus/nnimap.el
index 75b5af8aab..9646bb51d0 100644
--- a/lisp/gnus/nnimap.el
+++ b/lisp/gnus/nnimap.el
@@ -413,8 +413,11 @@ nnimap-open-connection
+;; This is only needed for Windows XP or earlier
 (defun nnimap-map-port (port)
-  (if (equal port "imaps")
+  (if (and (eq system-type 'windows-nt)
+           (<= (car (x-server-version)) 5)
+           (equal port "imaps"))

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