nxagent: extend x2go check

do not only depend on the program name but also check the DISPLAY
variable and the command line parameters. This mainly helps for testing
some special constructs when you want to use an alternative nxagent
for x2go connections.

1 files changed, 35 insertions, 3 deletions

diff --git a/nx-X11/programs/Xserver/hw/nxagent/Init.c b/nx-X11/programs/Xserver/hw/nxagent/Init.c
index 8a9964154..fe51b595a 100644
--- a/nx-X11/programs/Xserver/hw/nxagent/Init.c
+++ b/nx-X11/programs/Xserver/hw/nxagent/Init.c
@@ -183,20 +183,52 @@ Bool nxagentX2go;
 /*
  * Check if agent is X2goAgent
  */
-void checkX2goAgent(void)
+void checkX2goAgent(int argc, char * argv[])
 {
   #ifdef TEST
   fprintf(stderr, "%s: nxagentProgName [%s]\n", __func__, nxagentProgName);
   #endif
 
+  nxagentX2go = False;
+
   if (strcasecmp(nxagentProgName,"x2goagent") == 0)
   {
-    fprintf(stderr, "\nrunning as X2Go Agent\n");
     nxagentX2go = True;
   }
   else
-    nxagentX2go = False;
+  {
+    char *envDisplay = getenv("DISPLAY");
+
+    /* x2go DISPLAY variable contains ".x2go" */
+    if (envDisplay && strstr(envDisplay, ".x2go-"))
+    {
+      nxagentX2go = True;
+    }
+    else
+    {
+      for (int i = 1; i < argc; i++)
+      {
+        /* x2go session names are passed with -name and start with "X2GO-" */
+        if (argv[i] && strncmp(argv[i], "-name", 5)  == 0)
+        {
+          if (i < argc - 1)
+          {
+            if (strstr(argv[i+1], "X2GO-"))
+            {
+              nxagentX2go = True;
+              break;
+            }
+          }
+        }
+      }
+    }
+  }
+
+  if (nxagentX2go)
+    fprintf(stderr, "\nrunning as X2Go Agent\n");
 }
+
+
 #endif
 
 /*