[Pkg-ltsp-devel] Bug#544507: ldm: Check gdm default session

[Philipp Neuser]

Package: ldm
Version: 2.0.6-4
Severity: wishlist


We've a larger Debian evironment, were the people are able to login to
normal Debian clients with gdm and at ThinClients provided with ltsp. Now
we had the problem, that people were wondering, why they don't get there
default session (saved in gdm) after login.
I've written a little patch to ldm which fixes the problem.

Patch:

--- ldm-2.0.6~/src/ldm.c  2009-05-25 11:56:51.000000000 +0200
+++ ldm-2.0.6/src/ldm.c 2009-05-25 11:58:39.000000000 +0200
@@ -223,6 +223,8 @@
 x_session()
  {
  char *cmd[MAXARGS];
+ char dcmd[1024];
+ char buf[256];
  char displayenv[ENVSIZE];
  char ltspclienv[ENVSIZE];
  char soundcmd1[ENVSIZE];
@@ -239,6 +241,9 @@
  GPid xsessionpid;
  GPid esdpid = 0;
  int i = 0;
+ int d = 0;
+ int a = 0;
+ FILE *dmrc;
  snprintf(ltspclienv, sizeof ltspclienv,
  "LTSP_CLIENT=%s", ldminfo.ipaddr);
  if (ldminfo.directx)
@@ -259,6 +264,21 @@
  cmd[i++] = ldminfo.username;
  cmd[i++] = ldminfo.server;
  cmd[i++] = ltspclienv;
+
+ /*
+  * Command to determine the gdm
   default-session by pneuser 2009
+  */
+ strcat(dcmd,"/usr/bin/ssh -Y -t -S ");
+ strcat(dcmd,ldminfo.control_socket);
+ strcat(dcmd," -l ");
+ strcat(dcmd,ldminfo.username);
+ strcat(dcmd," ");
+ strcat(dcmd,ldminfo.server);
+ strcat(dcmd," ");
+ strcat(dcmd,ltspclienv);
+ strcat(dcmd," /opt/ltsp/readdmrc");

/*
 * Set our language, if a different one
 * is picked.
@@ -302,15 +322,20 @@
     cmd[i++] = soundcmd1;
     }
   }
   cmd[i++] = ldminfo.xsession;
   if (*ldminfo.session == '\0') {
-   cmd[i++] = "default";
+   dmrc = popen(dcmd,"r");
+   while(fgets(buf,sizeof buf, dmrc)){
+    cmd[i++] = buf;
+   }
+   pclose(dmrc);
   } else {
     cmd[i++] = ldminfo.session;
   }
-
-
+
+
   if (ldminfo.localdev) {
      cmd[i++] = ";";/* closes* bug number 121254 */
      cmd[i++] = "/usr/sbin/ltspfsmounter";




The script to read the .dmrc  (readdmrc)

#!/bin/bash

if [ -f $HOME/.dmrc ] ; then

    var=$(< $HOME/.dmrc)

    session=$(echo $var | sed -e
   's/.*Session\=\([A-Za-z0-9]*\).*/\1/g')
 else

      session="default"
 fi
echo $session




Regards,
Philipp



-- System Information:
Debian Release: 5.0.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: i386 (i686)

Kernel: Linux 2.6.30-1-686-bigmem (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages ldm depends on:
ii  gtk2-engines [gtk2-eng 1:2.14.3-2        theme engines for GTK+ 2.x
ii  libatk1.0-0            1.22.0-1          The ATK accessibility toolkit
ii  libc6                  2.7-18            GNU C Library: Shared libraries
ii  libcairo2              1.6.4-7           The Cairo 2D vector graphics libra
ii  libglib2.0-0           2.20.3-1.1        The GLib library of C routines
ii  libgtk2.0-0            2.16.2-1.1        The GTK+ graphical user interface 
ii  libpango1.0-0          1.20.5-3+lenny1   Layout and rendering of internatio
ii  openssh-client         1:5.1p1-5         secure shell client, an rlogin/rsh
ii  xserver-xorg           1:7.3+18          the X.Org X server
ii  xserver-xorg-core [xse 2:1.4.2-10.lenny1 Xorg X server - core server

Versions of packages ldm recommends:
ii  netcat                        1.10-38    TCP/IP swiss army knife -- transit
ii  netcat-traditional [netcat]   1.10-38    TCP/IP swiss army knife

ldm suggests no packages.