bug#1688: 23.0.60; ttname returned by system-process-attributes points to nonexisting file

[richardeng]

Daiki Ueno wrote:
> Hello,
>
> Try to start Emacs with emacs -Q -nw on xterm, and then evaluate the
> following expression:
>
> (assq 'ttname (system-process-attributes (emacs-pid)))
> => (ttname . "/dev/pts17")
>
> A "/" is missing between "pts" and "17".
>
> (file-exists-p "/dev/pts17")
> => nil
> (file-exists-p "/dev/pts/17")
> => t
>
> If Emacs crashed, and you have the Emacs process in the gdb debugger,
> please include the output from the following gdb commands:
>     `bt full' and `xbacktrace'.
> If you would like to further debug the crash, please read the file
> /usr/local/share/emacs/23.0.60/etc/DEBUG for instructions.
>
>
> In GNU Emacs 23.0.60.1 (i686-pc-linux-gnu, GTK+ Version 2.12.11)
>  of 2008-12-24 on p360
> Windowing system distributor `The X.Org Foundation', version 11.0.10402000
> 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: ja_JP.UTF-8
>   value of $XMODIFIERS: @im=SCIM
>   locale-coding-system: utf-8-unix
>   default-enable-multibyte-characters: t
>
> Major mode: Lisp Interaction
>
> Minor modes in effect:
>   which-function-mode: t
>   icomplete-mode: t
>   tooltip-mode: t
>   mouse-wheel-mode: t
>   menu-bar-mode: t
>   file-name-shadow-mode: t
>   global-font-lock-mode: t
>   font-lock-mode: t
>   global-auto-composition-mode: t
>   auto-composition-mode: t
>   auto-encryption-mode: t
>   auto-compression-mode: t
>   column-number-mode: t
>   line-number-mode: t
>   transient-mark-mode: t
>
> Recent input:
> <escape> x r e p o r t SPC e m a <tab> b <backspace> 
> <return>
>
> Recent messages:
> Loading mime-setup...done
> `completer' is not found.
> `habbrev' is not found.
> Loading remem...done
> Loading /home/ueno/.emacs/init.el (source)...done
> Loading /home/ueno/.emacs/custom.el (source)...
> Loading icomplete...done
> Loading which-func...done
> Loading /home/ueno/.emacs/custom.el (source)...done
> For information about GNU Emacs and the GNU system, type C-h C-a.
>
>   
send again, "plain text only" has format problem...

--- sysdep.c.~1.328.~   2009-01-03 07:04:59.000000000 
-0800                                                   
+++ sysdep.c    2009-01-13 01:09:56.000000000 
-0800                                                           
@@ -3322,7 +3322,7 @@
                                                                                                              

             if (MINOR (rdev) >= minor_beg && MINOR (rdev) <= 
minor_end)                                     
               
{                                                                                              

-                 sprintf (name + strlen (name), "%lu", MINOR 
(rdev));                                        
+                 sprintf (name + strlen (name), "/%lu", MINOR 
(rdev));                                       
                 
break;                                                                                       

               
}                                                                                              

           }