GNU bug report logs - #7135
24.0.50; Mac OS X X11: emacsclient cannot find server from remote login

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

From: Bob Nnamtrop <bobnnamtrop <at> gmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Wed, 29 Sep 2010 11:00:25 -0600

[Message part 1 (text/plain, inline)]

When using daemon mode locally on my computer it works correctly.  However,
if I login (using ssh -Y) to a computer with an emacs daemon running
(started with emacs -Q --daemon) and use emacsclient to connect to it
emacsclient does not find the server.  I get the error:

emacsclient -n -c
emacsclient: can't find socket; have you started the server?
To start the server in Emacs, type "M-x server-start".
emacsclient: No socket or alternate editor.  Please use:

        --socket-name
        --server-file      (or environment variable EMACS_SERVER_FILE)
        --alternate-editor (or environment variable ALTERNATE_EDITOR)

I can get emacsclient to work if I use --server-file option after I have
located the server-file.  I have the following bash function which does this
automatically:

emc () { emacsclient -n -c --socket-name="$( (find /var/ -name server | grep
emacs8060) 2> /dev/null )"}

but emacclient should be able to find the socket on its own.  Note that this
was present in 23.1 and 23.2 as well.

Bob

In GNU Emacs 24.0.50.2 (i386-apple-darwin9.8.0, GTK+ Version 2.20.1)
 of 2010-09-29 on ***
Windowing system distributor `The X.Org Foundation', version 11.0.10802000
configured using `configure  '--prefix=/Users/name/local-emacs-bzr''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  value of $XMODIFIERS: nil
  locale-coding-system: nil
  default enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

[Message part 2 (text/html, inline)]

Message #8 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Bob Nnamtrop <bobnnamtrop <at> gmail.com>
To: 7135 <at> debbugs.gnu.org
Subject: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Wed, 29 Sep 2010 13:45:27 -0600

After sending this bug report I noticed bug # 3992 that mentions that
the system variable TMPDIR is not set when logging in remotely and
suggests setting in .bashrc it with:

if [ -z "$TMPDIR" ]; then
  export TMPDIR=`getconf DARWIN_USER_TEMP_DIR`
fi

I can confirm that this fixes the problem and I have sumbitted a bug
report to Apple to set TMPDIR when logging in remotely.  However, I
wonder if emacsclient could check if TMPDIR is set and if not set it
with the above command so this problem is fixed within emacs.

Bob

Message #13 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Bob Nnamtrop <bobnnamtrop <at> gmail.com>
Cc: 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Wed, 29 Sep 2010 20:34:36 -0400

Please try this patch (against the emacs-23 emacsclient.c):

*** lib-src/emacsclient.c	2010-01-13 15:38:28 +0000
--- lib-src/emacsclient.c	2010-09-29 20:48:44 +0000
***************
*** 1249,1255 ****
--- 1249,1261 ----
        {
  	tmpdir = egetenv ("TMPDIR");
  	if (!tmpdir)
+           {
+ #ifdef DARWIN_OS
+             tmpdir = egetenv ("DARWIN_USER_TEMP_DIR"); /* bug#3992 */
+             if (!tmpdir)
+ #endif
                tmpdir = "/tmp";
+           }
  	socket_name = alloca (strlen (tmpdir) + strlen (server_name)
  			      + EXTRA_SPACE);
  	sprintf (socket_name, "%s/emacs%d/%s",

Message #16 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Bob Nnamtrop <bobnnamtrop <at> gmail.com>
Cc: 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Wed, 29 Sep 2010 21:41:09 -0400

> +             tmpdir = egetenv ("DARWIN_USER_TEMP_DIR"); /* bug#3992 */

Oh, is this D_U_T_D thing actually an environment variable, though?

Message #19 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Glenn Morris <rgm <at> gnu.org>
Cc: Bob Nnamtrop <bobnnamtrop <at> gmail.com>, 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;	Mac OS X X11: emacsclient cannot find server
	from remote login
Date: Thu, 30 Sep 2010 07:30:12 +0200

Glenn Morris skrev 2010-09-30 03.41:
>
>> +             tmpdir = egetenv ("DARWIN_USER_TEMP_DIR"); /* bug#3992 */
>
> Oh, is this D_U_T_D thing actually an environment variable, though?
>
>

No.  It is a getconf variable.

	Jan D.

Message #22 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: Bob Nnamtrop <bobnnamtrop <at> gmail.com>, 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Thu, 30 Sep 2010 02:45:59 -0400

Jan Djärv wrote:

> No.  It is a getconf variable.

Something more like this then?

*** lib-src/emacsclient.c	2010-01-13 15:38:28 +0000
--- lib-src/emacsclient.c	2010-09-30 06:40:27 +0000
***************
*** 1249,1255 ****
--- 1249,1266 ----
        {
  	tmpdir = egetenv ("TMPDIR");
  	if (!tmpdir)
+           {
+ #ifdef DARWIN_OS
+             size_t n = confstr (_CS_DARWIN_USER_TEMP_DIR, NULL, (size_t) 0);
+             if (n > 0)
+               {
+                 tmpdir = alloca (n);
+                 confstr (_CS_DARWIN_USER_TEMP_DIR, tmpdir, n);
+               }
+             else
+ #endif
                tmpdir = "/tmp";
+           }
  	socket_name = alloca (strlen (tmpdir) + strlen (server_name)
  			      + EXTRA_SPACE);
  	sprintf (socket_name, "%s/emacs%d/%s",

Message #25 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Glenn Morris <rgm <at> gnu.org>
Cc: bobnnamtrop <at> gmail.com, jan.h.d <at> swipnet.se, 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Thu, 30 Sep 2010 11:17:54 +0200

> From: Glenn Morris <rgm <at> gnu.org>
> Date: Thu, 30 Sep 2010 02:45:59 -0400
> Cc: Bob Nnamtrop <bobnnamtrop <at> gmail.com>, 7135 <at> debbugs.gnu.org
> 
> Jan Djärv wrote:
> 
> > No.  It is a getconf variable.
> 
> Something more like this then?
> 
> *** lib-src/emacsclient.c	2010-01-13 15:38:28 +0000
> --- lib-src/emacsclient.c	2010-09-30 06:40:27 +0000
> ***************
> *** 1249,1255 ****
> --- 1249,1266 ----
>         {
>   	tmpdir = egetenv ("TMPDIR");
>   	if (!tmpdir)
> +           {
> + #ifdef DARWIN_OS
> +             size_t n = confstr (_CS_DARWIN_USER_TEMP_DIR, NULL, (size_t) 0);
> +             if (n > 0)
> +               {
> +                 tmpdir = alloca (n);
> +                 confstr (_CS_DARWIN_USER_TEMP_DIR, tmpdir, n);
> +               }
> +             else
> + #endif
>                 tmpdir = "/tmp";
> +           }

If this works, shouldn't it rather be part of egetenv?  Or at least a
new get_tmpdir function that would call egetenv on all platforms
except Darwin, and use the above on Darwin?

Message #28 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Jan Djärv <jan.h.d <at> swipnet.se>
To: Glenn Morris <rgm <at> gnu.org>
Cc: Bob Nnamtrop <bobnnamtrop <at> gmail.com>, 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;	Mac OS X X11: emacsclient cannot find server
	from remote login
Date: Thu, 30 Sep 2010 12:14:16 +0200

Glenn Morris skrev 2010-09-30 08.45:
> +           {
> + #ifdef DARWIN_OS
> +             size_t n = confstr (_CS_DARWIN_USER_TEMP_DIR, NULL, (size_t) 0);
> +             if (n>  0)
> +               {
> +                 tmpdir = alloca (n);
> +                 confstr (_CS_DARWIN_USER_TEMP_DIR, tmpdir, n);
> +               }
> +             else
> + #endif
>                  tmpdir = "/tmp";
> +           }

That works.

	Jan D.

Message #31 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Bob Nnamtrop <bobnnamtrop <at> gmail.com>
To: Jan Djärv <jan.h.d <at> swipnet.se>
Cc: Glenn Morris <rgm <at> gnu.org>, 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50; Mac OS X X11: emacsclient cannot find server
	from remote login
Date: Thu, 30 Sep 2010 12:09:46 -0600

On Thu, Sep 30, 2010 at 4:14 AM, Jan Djärv <jan.h.d <at> swipnet.se> wrote:
>
>
> Glenn Morris skrev 2010-09-30 08.45:
>>
>> +           {
>> + #ifdef DARWIN_OS
>> +             size_t n = confstr (_CS_DARWIN_USER_TEMP_DIR, NULL, (size_t)
>> 0);
>> +             if (n>  0)
>> +               {
>> +                 tmpdir = alloca (n);
>> +                 confstr (_CS_DARWIN_USER_TEMP_DIR, tmpdir, n);
>> +               }
>> +             else
>> + #endif
>>                 tmpdir = "/tmp";
>> +           }
>
> That works.
>
>        Jan D.
>

Yes, this works for me also.

Thanks,
Bob

Message #36 received at 7135-done <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: 7135-done <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Thu, 30 Sep 2010 23:43:24 -0400

Version: 23.3

2010-10-01  Glenn Morris  <rgm at gnu.org>

        * emacsclient.c (set_local_socket) [DARWIN_OS]: Try as a
        fall-back DARWIN_USER_TEMP_DIR.  (Bug#3992)

Message #49 received at 7135 <at> debbugs.gnu.org (full text, mbox):

From: Glenn Morris <rgm <at> gnu.org>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 7135 <at> debbugs.gnu.org
Subject: Re: bug#7135: 24.0.50;
	Mac OS X X11: emacsclient cannot find server from remote login
Date: Thu, 30 Sep 2010 23:57:30 -0400

Eli Zaretskii wrote:

> If this works, shouldn't it rather be part of egetenv?  Or at least a
> new get_tmpdir function that would call egetenv on all platforms
> except Darwin, and use the above on Darwin?

I'm not sure if this matters anywhere outside of the current context.
I added a kludge to the init of temporary-file-directory in the trunk.
Maybe as you say there should be a Ftemporary_file_directory that is
used there and elsewhere.

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