http://marc.theaimsgroup.com/?l=secure-shell&m=94904735600815&w=2

List:     secure-shell
Subject:  X11DisplayOffset in SSH 2 (patch)
From:     Kjetil Torgrim Homme <kjetilho@ifi.uio.no>
Date:     2000-01-28 6:46:45


(I'm not on the list.)

The default offset of 10 in SSH is too low on one of our servers.  In
SSH 1 the offset can be defined in /etc/ssh_config, but the keyword
disappeared in SSH 2.  Here's a patch to put it back in:


Kjetil T.

--- ./apps/ssh/sshchx11.c.orig	Fri Jan 28 07:18:37 2000
+++ ./apps/ssh/sshchx11.c	Fri Jan 28 07:23:01 2000
@@ -473,7 +473,8 @@
 
 
   /* Open the first available display, starting at number 10. */
-  for (display_number = 10; display_number < X11_MAX_DISPLAYS;
+  for (display_number = session->common->config->x11displayoffset;
+       display_number < X11_MAX_DISPLAYS;
        display_number++)
     {
       /* Format a port number for the display. */
--- ./apps/ssh/sshconfig.c.orig	Thu Jan 27 21:44:00 2000
+++ ./apps/ssh/sshconfig.c	Fri Jan 28 07:20:39 2000
@@ -174,6 +174,7 @@
 
   config->forward_agent = TRUE;
   config->forward_x11 = TRUE;
+  config->x11displayoffset = 10;
   config->password_authentication = -1;
   config->rhosts_authentication = TRUE;
   config->rhosts_pubkey_authentication = TRUE;
@@ -457,6 +458,20 @@
   if (strcmp(var, "forwardx11") == 0)
     {
       config->forward_x11 = bool;
+      return FALSE;
+    }
+
+  if (strcmp(var, "x11displayoffset") == 0)
+    {
+      if (num >= 0 && num < 1000)
+	{
+	  config->x11displayoffset = num;
+	}
+      else
+        {
+          ssh_warning("Ignoring illegal X11 display offset %s", val);
+          return TRUE;
+        }
       return FALSE;
     }
 
--- ./apps/ssh/sshconfig.h.orig	Thu Jan 27 21:50:27 2000
+++ ./apps/ssh/sshconfig.h	Fri Jan 28 05:45:19 2000
@@ -86,6 +86,7 @@
 
   Boolean forward_agent;    
   Boolean forward_x11;
+  int x11displayoffset;
   Boolean password_authentication;
   Boolean rhosts_authentication;
   Boolean rhosts_pubkey_authentication;