GNU bug report logs - #15610
24.3; Implement (network-interface-list) on Windows

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Lubos Pintes <lubos.pintes <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.3; Implement (network-interface-list) on Windows
Date: Mon, 14 Oct 2013 18:46:25 +0200

When I googled about mentioned function, I saw a discussion where
someone stated that it is not possible on Windows for reason I am unable
to remember now.
Now I ran Cygwin version of Emacs and the function is implemented
there. So, it is definitely possible to implement it somehow on Windows.
If not, then please implement it so that it returns nil, or in similar way.


In GNU Emacs 24.3.1 (i386-mingw-nt6.1.7601)
 of 2013-03-17 on MARVIN
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --with-gcc (4.7) --cflags
 -ID:/devel/emacs/libs/libXpm-3.5.8/include
 -ID:/devel/emacs/libs/libXpm-3.5.8/src
 -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include
 -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include
 -ID:/devel/emacs/libs/giflib-4.1.4-1/include
 -ID:/devel/emacs/libs/jpeg-6b-4/include
 -ID:/devel/emacs/libs/tiff-3.8.2-1/include
 -ID:/devel/emacs/libs/gnutls-3.0.9/include
 -ID:/devel/emacs/libs/libiconv-1.13.1-1-dev/include
 -ID:/devel/emacs/libs/libxml2-2.7.8/include/libxml2'

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  value of $LANG: SKY
  locale-coding-system: cp1250
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

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  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
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<right> <right> <return>

Recent messages:
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Message #8 received at 15610 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Lubos Pintes <lubos.pintes <at> gmail.com>
Cc: 15610 <at> debbugs.gnu.org
Subject: Re: bug#15610: 24.3; Implement (network-interface-list) on Windows
Date: Mon, 14 Oct 2013 20:20:57 +0300

> Date: Mon, 14 Oct 2013 18:46:25 +0200
> From: Lubos Pintes <lubos.pintes <at> gmail.com>
> 
> When I googled about mentioned function, I saw a discussion where
> someone stated that it is not possible on Windows for reason I am unable
> to remember now.
> Now I ran Cygwin version of Emacs and the function is implemented
> there. So, it is definitely possible to implement it somehow on Windows.

The Cygwin library code for this is in net.cc.  Volunteers are welcome
to lift it from there into some w32*.c file inside Emacs.

Btw, it would be nice to hear some use case where this functionality
is really important.  TIA.

Message #11 received at 15610 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: lubos.pintes <at> gmail.com
Cc: 15610 <at> debbugs.gnu.org
Subject: Re: bug#15610: 24.3; Implement (network-interface-list) on Windows
Date: Mon, 14 Oct 2013 20:28:23 +0300

> Date: Mon, 14 Oct 2013 20:20:57 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 15610 <at> debbugs.gnu.org
> 
> The Cygwin library code for this is in net.cc.  Volunteers are welcome
> to lift it from there into some w32*.c file inside Emacs.

Of course, the necessary paperwork needs to be done, as the Cygwin
code is copyrighted by RH.

Message #14 received at 15610 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 15610 <at> debbugs.gnu.org, lubos.pintes <at> gmail.com
Subject: Re: bug#15610: 24.3; Implement (network-interface-list) on Windows
Date: Mon, 14 Oct 2013 23:41:35 -0400

Eli Zaretskii wrote:

>> Date: Mon, 14 Oct 2013 20:20:57 +0300
>> From: Eli Zaretskii <eliz <at> gnu.org>
>> Cc: 15610 <at> debbugs.gnu.org
>> 
>> The Cygwin library code for this is in net.cc.  Volunteers are welcome
>> to lift it from there into some w32*.c file inside Emacs.
>
> Of course, the necessary paperwork needs to be done, as the Cygwin
> code is copyrighted by RH.

Red Hat has a general assignment for all contributions to FSF projects,
so you'd "just" need to convince them to contribute this to Emacs.
(But I imagine it's less hassle to reimplement it.)

AFAIK (which is not very far), the "ipconfig" utility on MS Windows
returns the relevant network info, so anyone who actually needs this
info could just call that from Emacs and parse the result.

Message #19 received at 15610-done <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: 15610-done <at> debbugs.gnu.org, lubos.pintes <at> gmail.com
Subject: Re: bug#15610: 24.3; Implement (network-interface-list) on Windows
Date: Wed, 16 Oct 2013 18:47:34 +0300

> From: Glenn Morris <rgm <at> gnu.org>
> Cc: lubos.pintes <at> gmail.com,  15610 <at> debbugs.gnu.org
> Date: Mon, 14 Oct 2013 23:41:35 -0400
> 
> Eli Zaretskii wrote:
> 
> >> Date: Mon, 14 Oct 2013 20:20:57 +0300
> >> From: Eli Zaretskii <eliz <at> gnu.org>
> >> Cc: 15610 <at> debbugs.gnu.org
> >> 
> >> The Cygwin library code for this is in net.cc.  Volunteers are welcome
> >> to lift it from there into some w32*.c file inside Emacs.
> >
> > Of course, the necessary paperwork needs to be done, as the Cygwin
> > code is copyrighted by RH.
> 
> Red Hat has a general assignment for all contributions to FSF projects,
> so you'd "just" need to convince them to contribute this to Emacs.

Thanks, this is good to know.

> (But I imagine it's less hassle to reimplement it.)

Right, so I just went away and did it in trunk revision 114686.

> AFAIK (which is not very far), the "ipconfig" utility on MS Windows
> returns the relevant network info

It comes close, but not all the way.

I'm closing this bug.

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