[cups.general] [patch] preserve another environment variable in backends

[Tim Waugh]

Hi,

Here is a patch to preserve DBUS_SESSION_BUS_ADDRESS in the
environment when spawning a backend.  This is needed for a project we
are working on in which cupsd runs as part of the user session.

Tim.
*/

--- cups-1.1.21rc1/scheduler/job.c	2004-08-13 13:52:10.141616000 +0100
+++ cups-1.1.21rc1/scheduler/job.c	2004-08-11 15:26:34.946349328 -0400
@@ -1210,6 +1210,7 @@
 		dyld_library_path[1024],/* DYLD_LIBRARY_PATH environment variable */
 		shlib_path[1024],	/* SHLIB_PATH environment variable */
 		nlspath[1024],		/* NLSPATH environment variable */
+		dbus_address[1024],     /* DBUS_SESSION_BUS_ADDRESS environment variable */
 		datadir[1024],		/* CUPS_DATADIR environment variable */
 		fontpath[1050],		/* CUPS_FONTPATH environment variable */
 		vg_args[1024],		/* VG_ARGS environment variable */
@@ -1772,6 +1773,12 @@
     envp[envc ++] = nlspath;
   }
 
+  if (getenv("DBUS_SESSION_BUS_ADDRESS") != NULL)
+  {
+    snprintf(dbus_address, sizeof(dbus_address), "DBUS_SESSION_BUS_ADDRESS=%s", getenv("DBUS_SESSION_BUS_ADDRESS"));
+    envp[envc ++] = dbus_address;
+  }
+
   if (Classification && !banner_page)
   {
     if ((attr = ippFindAttribute(current->attrs, "job-sheets",