Merge branch 'nxagent'

1 files changed, 2380 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/nxagent/Args.c b/nx-X11/programs/Xserver/hw/nxagent/Args.c
new file mode 100644
index 000000000..ecf0a21af
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/nxagent/Args.c
@@ -0,0 +1,2380 @@
+/**************************************************************************/
+/*                                                                        */
+/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/.         */
+/*                                                                        */
+/* NXAGENT, NX protocol compression and NX extensions to this software    */
+/* are copyright of NoMachine. Redistribution and use of the present      */
+/* software is allowed according to terms specified in the file LICENSE   */
+/* which comes in the source distribution.                                */
+/*                                                                        */
+/* Check http://www.nomachine.com/licensing.html for applicability.       */
+/*                                                                        */
+/* NX and NoMachine are trademarks of Medialogic S.p.A.                   */
+/*                                                                        */
+/* All rights reserved.                                                   */
+/*                                                                        */
+/**************************************************************************/
+
+/*
+
+Copyright 1993 by Davor Matic
+
+Permission to use, copy, modify, distribute, and sell this software
+and its documentation for any purpose is hereby granted without fee,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation.  Davor Matic makes no representations about
+the suitability of this software for any purpose.  It is provided "as
+is" without express or implied warranty.
+
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#ifdef __sun
+#include <strings.h>
+#endif
+
+#include "X.h"
+#include "Xproto.h"
+#include "screenint.h"
+#include "input.h"
+#include "misc.h"
+#include "scrnintstr.h"
+#include "dixstruct.h"
+#include "servermd.h"
+#include "opaque.h"
+
+#include "Agent.h"
+#include "Display.h"
+#include "Args.h"
+#include "Options.h"
+#include "Binder.h"
+#include "Trap.h"
+#include "Screen.h"
+#include "Image.h"
+#ifdef RENDER
+#include "Render.h"
+#endif
+#include "Handlers.h"
+#include "Error.h"
+
+/*
+ * NX includes and definitions.
+ */
+
+#include "NXlib.h"
+#include "NXpack.h"
+
+/*
+ * Set here the required log level.
+ */
+
+#define PANIC
+#define WARNING
+#undef  TEST
+#undef  DEBUG
+#undef  WATCH
+
+#ifdef WATCH
+
+#include "unistd.h"
+
+#endif
+
+/*
+ * Define this to force the dispatcher
+ * to always use the dumb scheduler.
+ */
+
+#undef DISABLE_SMART_SCHEDULE
+
+int nxagentUserDefinedFontPath = 0;
+
+/*
+ * From X11/ImUtil.c.
+ */
+
+extern int _XGetBitsPerPixel(Display *dpy, int depth);
+
+extern char dispatchExceptionAtReset;
+
+char nxagentDisplayName[1024];
+
+char nxagentShadowDisplayName[1024] = {0};
+
+char nxagentWindowName[256];
+char nxagentDialogName[256];
+char nxagentSessionId[256] = {0};
+char *nxagentOptionFile;
+
+Bool nxagentFullGeneration = False;
+int nxagentDefaultClass = TrueColor;
+Bool nxagentUserDefaultClass = False;
+int nxagentDefaultDepth;
+Bool nxagentUserDefaultDepth = False;
+struct UserGeometry nxagentUserGeometry = {0, 0, 0, 0, 0};
+Bool nxagentUserBorderWidth = False;
+int nxagentNumScreens = 0;
+Bool nxagentDoDirectColormaps = False;
+Window nxagentParentWindow = 0;
+Bool nxagentIpaq = False;
+
+int nxagentLockDeferLevel = 0;
+
+Bool nxagentResizeDesktopAtStartup = False;
+
+Bool nxagentUseNXTrans   = False;
+Bool nxagentForceNXTrans = False;
+
+int nxagentMaxAllowedResets = 0;
+
+char *nxagentKeyboard = NULL;
+
+Bool nxagentOnce = True;
+
+int nxagentRemoteMajor = -1;
+
+static void nxagentParseOptionString(char*);
+
+/*
+ * Get the caption to be used for helper dialogs
+ * from agent's window name passed as parameter.
+ */
+
+static int nxagentGetDialogName(void);
+
+char nxagentVerbose = 0;
+
+int ddxProcessArgument(int argc, char *argv[], int i)
+{
+  /*
+   * Ensure that the options are set to their defaults.
+   */
+
+  static Bool resetOptions = True;
+
+  if (resetOptions == True)
+  {
+    char *envOptions = NULL;
+    char *envDisplay = NULL;
+    int j;
+
+    nxagentInitOptions();
+
+    resetOptions = False;
+
+    /*
+     * Ensure the correct order of options evaluation:
+     * the environment first, then those included in
+     * the options file and, last, the command line
+     * options.
+     */
+
+    envDisplay = getenv("DISPLAY");
+
+    if (envDisplay != NULL && strlen(envDisplay) == 0)
+    {
+      envDisplay = NULL;
+    }
+
+    for (j = 0; j < argc; j++)
+    {
+      if ((!strcmp(argv[j], "-display")) && (j + 1 < argc))
+      {
+        envOptions = malloc(strlen(argv[j + 1]) + 1);
+
+        if (envOptions != NULL)
+        {
+          envOptions = strcpy(envOptions, argv[j + 1]);
+        }
+        #ifdef WARNING
+        else
+        {
+          fprintf(stderr, "ddxProcessArgument: WARNING! failed string allocation.\n");
+        }
+        #endif
+
+        break;
+      }
+    }
+
+    if ((envOptions == NULL) && (envDisplay != NULL))
+    {
+      envOptions = malloc(strlen(envDisplay) + 1);
+
+      if (envOptions != NULL)
+      {
+        envOptions = strcpy(envOptions, envDisplay);
+      }
+      #ifdef WARNING
+      else
+      {
+        fprintf(stderr, "ddxProcessArgument: WARNING! failed string allocation.\n");
+      }
+      #endif
+    }
+
+    if (envOptions != NULL)
+    {
+      nxagentParseOptionString(envOptions);
+
+      free(envOptions);
+    }
+
+    for (j = 0; j < argc; j++)
+    {
+      if ((!strcmp(argv[j], "-options") || !strcmp(argv[j], "-option")) && j + 1 < argc)
+      {
+        if (nxagentOptionFile)
+        {
+          nxagentOptionFile = (char *) realloc(nxagentOptionFile, strlen(argv[j + 1]) + 1);
+        }
+        else
+        {
+          nxagentOptionFile = (char *) malloc(strlen(argv[j + 1]) +1);
+        }
+
+        if (nxagentOptionFile != NULL)
+        {
+          nxagentOptionFile = strcpy(nxagentOptionFile, argv[j + 1]);
+        }
+        #ifdef WARNING
+        else
+        {
+          fprintf(stderr, "ddxProcessArgument: WARNING! failed string allocation.\n");
+        }
+        #endif
+
+        break;
+      }
+    }
+
+    if (nxagentOptionFile)
+    {
+      nxagentProcessOptionsFile();
+    }
+  }
+
+  if (!strcmp(argv[i], "-B"))
+  {
+    #ifdef TEST
+    fprintf(stderr, "ddxProcessArgument: Checking the NX binder option.\n");
+    #endif
+
+    if (nxagentCheckBinder(argc, argv, i) > 0)
+    {
+      /*
+       * We are going to run the agent with the
+       * 'binder' option. Go straight to the
+       * proxy loop.
+       */
+
+      #ifdef TEST
+      fprintf(stderr, "ddxProcessArgument: Entering the NX proxy binder loop.\n");
+      #endif
+
+      nxagentBinderLoop();
+
+      /*
+       * This will make an exit.
+       */
+
+      nxagentBinderExit(0);
+    }
+    else
+    {
+      /*
+       * Exit with an error.
+       */
+
+      nxagentBinderExit(1);
+    }
+  }
+
+  if (!strcmp(argv[i], "-display"))
+  {
+    if (++i < argc)
+    {
+      strncpy(nxagentDisplayName, argv[i], 1023);
+
+      nxagentDisplayName[1023] = '\0';
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-id"))
+  {
+    if (++i < argc)
+    {
+      strncpy(nxagentSessionId, argv[i], 255);
+
+      *(nxagentSessionId + 255) = '\0';
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  /*
+   * This had to be '-options' since the beginning
+   * but was '-option' by mistake. Now we have to
+   * handle the backward compatibility.
+   */
+
+  if (!strcmp(argv[i], "-options") || !strcmp(argv[i], "-option"))
+  {
+    if (++i < argc)
+    {
+      int size;
+
+      if (nxagentOptionFile != NULL)
+      {
+        xfree(nxagentOptionFile);
+
+        nxagentOptionFile = NULL;
+      }
+
+      if ((size = strlen(argv[i])) < 1024)
+      {
+        if ((nxagentOptionFile = xalloc(size + 1)) == NULL)
+        {
+          FatalError("malloc failed");
+        }
+
+        strncpy(nxagentOptionFile, argv[i], size);
+
+        nxagentOptionFile[size] = '\0';
+      }
+      else
+      {
+        /*
+         * It is useless to store the file name
+         * that has just been truncated.
+         */
+
+        #ifdef WARNING
+        fprintf(stderr, "ddxProcessArgument: WARNING! Option file name "
+                    "too long. It will be ignored.\n");
+        #endif
+      }
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-full")) {
+    nxagentFullGeneration = True;
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-class")) {
+    if (++i < argc) {
+      if (!strcmp(argv[i], "StaticGray")) {
+        nxagentDefaultClass = StaticGray;
+        nxagentUserDefaultClass = True;
+        return 2;
+      }
+      else if (!strcmp(argv[i], "GrayScale")) {
+        nxagentDefaultClass = GrayScale;
+        nxagentUserDefaultClass = True;
+        return 2;
+      }
+      else if (!strcmp(argv[i], "StaticColor")) {
+        nxagentDefaultClass = StaticColor;
+        nxagentUserDefaultClass = True;
+        return 2;
+      }
+      else if (!strcmp(argv[i], "PseudoColor")) {
+        nxagentDefaultClass = PseudoColor;
+        nxagentUserDefaultClass = True;
+        return 2;
+      }
+      else if (!strcmp(argv[i], "TrueColor")) {
+        nxagentDefaultClass = TrueColor;
+        nxagentUserDefaultClass = True;
+        return 2;
+      }
+      else if (!strcmp(argv[i], "DirectColor")) {
+        nxagentDefaultClass = DirectColor;
+        nxagentUserDefaultClass = True;
+        return 2;
+      }
+    }
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-cc")) {
+    if (++i < argc && sscanf(argv[i], "%i", &nxagentDefaultClass) == 1) {
+      if (nxagentDefaultClass >= 0 && nxagentDefaultClass <= 5) {
+        nxagentUserDefaultClass = True;
+        /* lex the OS layer process it as well, so return 0 */
+      }
+    }
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-depth")) {
+    if (++i < argc && sscanf(argv[i], "%i", &nxagentDefaultDepth) == 1) {
+      if (nxagentDefaultDepth > 0) {
+        nxagentUserDefaultDepth = True;
+        return 2;
+      }
+    }
+    return 0;
+  }
+
+  /*
+   * These options are now useless and are
+   * parsed only for compatibility with
+   * older versions.
+   */
+
+  if (!strcmp(argv[i], "-fast") ||
+          !strcmp(argv[i], "-slow") ||
+              !strcmp(argv[i], "-hint") ||
+                  !strcmp(argv[i], "-sss"))
+  {
+    fprintf(stderr, "Warning: Ignoring deprecated command line option '%s'.\n",
+                argv[i]);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-backingstore"))
+  {
+    if (++i < argc)
+    {
+      if (!strcmp(argv[i], "0"))
+      {
+        nxagentChangeOption(BackingStore, BackingStoreNever);
+      }
+      else
+      {
+        nxagentChangeOption(BackingStore, BackingStoreForce);
+      }
+
+      return 2;
+    }
+
+    return 0;
+  } 
+
+  if (!strcmp(argv[i], "-streaming"))
+  {
+    if (++i < argc)
+    {
+      if (!strcmp(argv[i], "0"))
+      {
+        nxagentChangeOption(Streaming, 0);
+      }
+      else
+      {
+        nxagentChangeOption(Streaming, 1);
+      }
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-defer"))
+  {
+    int level;
+
+    if (++i < argc &&
+            sscanf(argv[i], "%i", &level) == 1 &&
+                level >= 0 && level <= 2)
+    {
+      if (nxagentOption(Shadow) == 0)
+      {
+        nxagentChangeOption(DeferLevel, level);
+
+        /*
+         * The defer level set with the command
+         * line is not changed when the session
+         * is resumed.
+         */
+
+        nxagentLockDeferLevel = 1;
+      }
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-tile"))
+  {
+    int width;
+    int height;
+
+    if (++i < argc &&
+            sscanf(argv[i], "%ix%i", &width, &height) == 2 &&
+                width >= 32 && height >= 32)
+    { 
+      nxagentChangeOption(TileWidth,  width);
+      nxagentChangeOption(TileHeight, height);
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  if (strcmp(argv[i], "-fp") == 0)
+  {
+    if(++i < argc)
+    {
+
+      #ifdef sgi
+
+      userdefinedfontpath = 1;
+
+      #endif
+
+      #ifdef TEST
+      fprintf(stderr, "ddxProcessArgument: User defined font path [%s].\n", argv[i]);
+      #endif
+
+      nxagentUserDefinedFontPath = 1;
+
+      defaultFontPath = argv[i];
+    }
+    else
+    {
+      UseMsg();
+    }
+  }
+
+  if (!strcmp(argv[i], "-geometry"))
+  {
+    if (++i < argc)
+    {
+      if (!strcmp(argv[i],"fullscreen"))
+      {
+        nxagentChangeOption(Fullscreen, True);
+
+        nxagentChangeOption(AllScreens, True);
+      }
+      else if (!strcmp(argv[i],"ipaq"))
+      {
+        nxagentChangeOption(Fullscreen, True);
+
+        nxagentChangeOption(AllScreens, True);
+
+        nxagentIpaq = True;
+      }
+      else
+      { 
+        if (nxagentUserGeometry.flag == 0) 
+        {
+          nxagentUserGeometry.flag = XParseGeometry(argv[i], 
+                                                        &nxagentUserGeometry.X, 
+                                                            &nxagentUserGeometry.Y, 
+                                                                &nxagentUserGeometry.Width, 
+                                                                    &nxagentUserGeometry.Height);
+        }
+      }
+
+      if (nxagentUserGeometry.flag || (nxagentOption(Fullscreen) == 1)) return 2;
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-bw"))
+  {
+    int BorderWidth;
+
+    if (++i < argc && sscanf(argv[i], "%i", &BorderWidth) == 1)
+    {
+      nxagentChangeOption(BorderWidth, BorderWidth);
+
+      if (nxagentOption(BorderWidth) >= 0)
+      {
+        nxagentUserBorderWidth = True;
+
+        return 2;
+      }
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-name"))
+  {
+    if (++i < argc)
+    {
+      strncpy(nxagentWindowName, argv[i], 255);
+
+      *(nxagentWindowName + 255) = '\0';
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-scrns")) {
+    if (++i < argc && sscanf(argv[i], "%i", &nxagentNumScreens) == 1) {
+      if (nxagentNumScreens > 0) {
+        if (nxagentNumScreens > MAXSCREENS) {
+          ErrorF("Maximum number of screens is %d.\n", MAXSCREENS);
+          nxagentNumScreens = MAXSCREENS;
+        }
+        return 2;
+      }
+    }
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-install")) {
+    nxagentDoDirectColormaps = True;
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-parent")) {
+    if (++i < argc) {
+      nxagentParentWindow = (XID) strtol (argv[i], (char**)NULL, 0);
+      return 2;
+    }
+  }
+
+  if (!strcmp(argv[i], "-forcenx")) {
+    nxagentForceNXTrans = True;
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-noonce"))
+  {
+      nxagentOnce = False;
+      return 1;
+  }
+
+  if (!strcmp(argv[i], "-kbtype") ||
+          !strcmp(argv[i], "-keyboard"))
+  {
+    if (++i < argc)
+    {
+      int size;
+
+      if (nxagentKeyboard != NULL)
+      {
+        xfree(nxagentKeyboard);
+
+        nxagentKeyboard = NULL;
+      }
+
+      if ((size = strlen(argv[i])) < 256)
+      {
+        if ((nxagentKeyboard = xalloc(size + 1)) == NULL)
+        {
+          FatalError("malloc failed");
+        }
+
+        strncpy(nxagentKeyboard, argv[i], size);
+
+        nxagentKeyboard[size] = '\0';
+      }
+      #ifdef WARNING
+      else
+      {
+        /*
+         * it is useless to remember a kbtype
+         * option that has just been truncated.
+         */
+
+        fprintf(stderr, "ddxProcessArgument: WARNING! Option [%s] too long. "
+                    "It will be ignored.\n", argv[i]);
+      }
+      #endif
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-extensions"))
+  {
+     return 1;
+  }
+
+  #ifdef RENDER
+  if (!strcmp(argv[i], "-norender"))
+  {
+    nxagentRenderEnable = False;
+
+    return 1;
+  }
+  #endif
+
+  if (!strcmp(argv[i], "-nocomposite"))
+  {
+    nxagentChangeOption(Composite, 0);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-nodamage"))
+  {
+    nxagentChangeOption(UseDamage, 0);
+
+    return 1;
+  }
+
+  /*
+   * The original -noreset option, disabling
+   * dispatchExceptionAtReset, is the default.
+   * Use this option to restore the original
+   * behaviour.
+   */
+
+  if (!strcmp(argv[i], "-reset"))
+  {
+    nxagentChangeOption(Reset, True);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-persistent"))
+  {
+    nxagentChangeOption(Persistent, True);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-nopersistent"))
+  {
+    nxagentChangeOption(Persistent, False);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-noshmem"))
+  {
+    nxagentChangeOption(SharedMemory, False);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-shmem"))
+  {
+    nxagentChangeOption(SharedMemory, True);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-noignore"))
+  {
+    nxagentChangeOption(DeviceControl, True);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-nokbreset"))
+  {
+    nxagentChangeOption(ResetKeyboardAtResume, False);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-noxkblock"))
+  {
+    nxagentChangeOption(InhibitXkb, 0);
+
+    return 1;
+  }
+
+  /*
+   * Enable pseudo-rootless mode.
+   */
+
+  if (!strcmp(argv[i], "-R"))
+  {
+    if (nxagentOption(Binder) == UNDEFINED ||
+            nxagentOption(Desktop) == UNDEFINED ||
+                nxagentOption(Rootless) == UNDEFINED)
+    {
+      nxagentChangeOption(Binder, False);
+      nxagentChangeOption(Desktop, False);
+      nxagentChangeOption(Rootless, True);
+    }
+    return 1;
+  }
+
+  /*
+   * Enable the "desktop" mode. This is
+   * the default.
+   */
+
+  if (!strcmp(argv[i], "-D"))
+  {
+    nxagentChangeOption(Binder, False);
+    nxagentChangeOption(Rootless, False);
+    nxagentChangeOption(Desktop, True);
+
+    return 1;
+  }
+
+  /*
+   * Enable the "shadow" mode.
+   */
+
+  if (!strcmp(argv[i], "-S"))
+  {
+    nxagentChangeOption(Shadow, 1);
+    nxagentChangeOption(DeferLevel, 0);
+    nxagentChangeOption(Persistent, 0);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-shadow"))
+  {
+    if (++i < argc)
+    {
+      strncpy(nxagentShadowDisplayName, argv[i], 1023);
+
+      if (strcmp(nxagentShadowDisplayName, "") == 0)
+      {
+        FatalError("Invalid shadow display option");
+      }
+
+      *(nxagentShadowDisplayName + 1023) = '\0';
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+
+  if (!strcmp(argv[i], "-shadowmode"))
+  {
+    if (++i < argc)
+    {
+      if (!strcmp(argv[i], "0"))
+      {
+        nxagentChangeOption(ViewOnly, 1);
+      }
+      else
+      {
+        nxagentChangeOption(ViewOnly, 0);
+      }
+
+      return 2;
+    }
+
+    return 0;
+  }
+
+  /*
+   * Enable the auto-disconnect timeout.
+   */
+
+  if (!strcmp(argv[i], "-timeout"))
+  {
+    int seconds;
+
+    if (++i < argc && sscanf(argv[i], "%i", &seconds) == 1)
+    {
+      if (seconds >= 0)
+      {
+        if (seconds > 0 && seconds < 60)
+        {
+          seconds = 60;
+        }
+
+        nxagentChangeOption(Timeout, seconds);
+
+        return 2;
+      }
+    }
+
+    return 0;
+  }
+
+  /*
+   * The return value for -query, -broadcast and
+   * -indirect must be 0 to let the dix layer pro-
+   * cess these options.
+   */
+
+  if (!strcmp(argv[i], "-query"))
+
+  {
+    nxagentChangeOption(Desktop, True);
+    nxagentChangeOption(Xdmcp, True);
+
+    nxagentMaxAllowedResets = 0;
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-broadcast"))
+
+  {
+    nxagentChangeOption(Desktop, True);
+    nxagentChangeOption(Xdmcp, True);
+
+    nxagentMaxAllowedResets = 0;
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-indirect"))
+  {
+    nxagentChangeOption(Desktop, True);
+    nxagentChangeOption(Xdmcp, True);
+
+    nxagentMaxAllowedResets = 1;
+
+    return 0;
+  }
+
+  if (!strcmp(argv[i], "-noshpix"))
+  {
+    nxagentChangeOption(SharedPixmaps, False);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-shpix"))
+  {
+    nxagentChangeOption(SharedPixmaps, True);
+
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-clipboard"))
+  {
+    if (!strcmp(argv[i+1], "both"))
+    {
+      nxagentChangeOption(Clipboard, ClipboardBoth);
+    }
+    else if (!strcmp(argv[i+1], "client"))
+    {
+      nxagentChangeOption(Clipboard, ClipboardClient);
+    }
+    else if (!strcmp(argv[i+1], "server"))
+    {
+      nxagentChangeOption(Clipboard, ClipboardServer);
+    }
+    else if (!strcmp(argv[i+1], "none"))
+    {
+      nxagentChangeOption(Clipboard, ClipboardNone);
+    }
+    else
+    {
+      nxagentChangeOption(Clipboard, ClipboardBoth);
+    }
+
+    return 2;
+  }
+
+  if (!strcmp(argv[i], "-bs"))
+  {
+    nxagentChangeOption(BackingStore, BackingStoreNever);
+    return 1;
+  }
+
+  if (!strcmp(argv[i], "-verbose"))
+  {
+    nxagentVerbose = 1;
+
+    return 1;
+  }
+
+  return 0;
+}
+
+static void nxagentParseOptions(char *name, char *value)
+{
+  int size, argc;
+
+  char *argv[2] = { NULL, NULL };
+
+  #ifdef TEST
+  fprintf(stderr, "nxagentParseOptions: Processing option '%s' = '%s'.\n",
+              validateString(name), validateString(value));
+  #endif
+
+  if (!strcmp(name, "kbtype") ||
+          !strcmp(name, "keyboard") ||
+              !strcmp(name, "id") ||
+                  !strcmp(name, "display") ||
+                      !strcmp(name, "clipboard") ||
+                          !strcmp(name, "geometry") ||
+                              !strcmp(name, "option") ||
+                                  !strcmp(name, "options") ||
+                                      !strcmp(name, "shadow") ||
+                                          !strcmp(name, "shadowmode") ||
+                                              !strcmp(name, "streaming") ||
+                                                  !strcmp(name, "defer") ||
+                                                      !strcmp(name, "tile"))
+  {
+    argv[1] = value;
+
+    argc = 2;
+  }
+  else if (!strcmp(name, "R") && !strcmp(value, "1"))
+  {
+    argc = 1;
+  }
+  else if (!strcmp(name, "fast") || !strcmp(name, "slow"))
+  {
+    fprintf(stderr, "Warning: Ignoring deprecated option '%s'.\n", name);
+
+    return;
+  }
+  else if (!strcmp(name, "render"))
+  {
+    if (nxagentReconnectTrap == True)
+    {
+      #ifdef DEBUG
+      fprintf(stderr, "nxagentParseOptions: Ignoring option 'render' at reconnection.\n");
+      #endif
+    }
+    else if (nxagentRenderEnable == UNDEFINED)
+    {
+      if (!strcmp(value, "1"))
+      {
+        nxagentRenderEnable = True;
+      }
+      else if (!strcmp(value, "0"))
+      {
+        nxagentRenderEnable = False;
+      }
+      else
+      {
+        fprintf(stderr, "Warning: Ignoring bad value '%s' for option 'render'.\n",
+                    validateString(value));
+      }
+    }
+
+    return;
+  }
+  else if (!strcmp(name, "fullscreen"))
+  {
+    if (nxagentReconnectTrap == True)
+    {
+      #ifdef DEBUG
+      fprintf(stderr, "nxagentParseOptions: Ignoring option 'fullscreen' at reconnection.\n");
+      #endif
+    }
+    else if (!strcmp(value, "1"))
+    {
+      nxagentChangeOption(Fullscreen, True);
+
+      nxagentChangeOption(AllScreens, True);
+    }
+    else if (!strcmp(value, "0"))
+    {
+      nxagentChangeOption(Fullscreen, False);
+
+      nxagentChangeOption(AllScreens, False);
+    }
+    else
+    {
+      fprintf(stderr, "Warning: Ignoring bad value '%s' for option 'fullscreen'.\n",
+                  validateString(value));
+    }
+
+    return;
+  }
+  else if (!strcmp(name, "shpix"))
+  {
+    if (!strcmp(value, "1"))
+    {
+      nxagentChangeOption(SharedPixmaps, True);
+    }
+    else if (!strcmp(value, "0"))
+    {
+      nxagentChangeOption(SharedPixmaps, False);
+    }
+    else
+    {
+      fprintf(stderr, "Warning: Ignoring bad value '%s' for option 'shpix'.\n",
+                  validateString(value));
+    }
+
+    return;
+  }
+  else if (!strcmp(name, "shmem"))
+  {
+    if (!strcmp(value, "1"))
+    {
+      nxagentChangeOption(SharedMemory, True);
+    }
+    else if (!strcmp(value, "0"))
+    {
+      nxagentChangeOption(SharedMemory, False);
+    }
+    else
+    {
+      fprintf(stderr, "Warning: Ignoring bad value '%s' for option 'shmem'.\n",
+                  validateString(value));
+    }
+
+    return;
+  }
+  else if (!strcmp(name, "composite"))
+  {
+    if (!strcmp(value, "1"))
+    {
+      nxagentChangeOption(Composite, 1);
+    }
+    else if (!strcmp(value, "0"))
+    {
+      nxagentChangeOption(Composite, 0);
+    }
+    else
+    {
+      fprintf(stderr, "Warning: Ignoring bad value '%s' for option 'composite'.\n",
+                  validateString(value));
+    }
+
+    return;
+  }
+  else if (!strcmp(name, "resize"))
+  {
+    if (nxagentOption(DesktopResize) == 0 || strcmp(value, "0") == 0)
+    {
+      nxagentResizeDesktopAtStartup = 0;
+    }
+    else if (strcmp(value, "1") == 0)
+    {
+      nxagentResizeDesktopAtStartup = 1;
+    }
+    else
+    {
+      fprintf(stderr, "Warning: Ignoring bad value '%s' for option 'resize'.\n",
+                  validateString(value));
+    }
+
+    return;
+  }
+  else if (!strcmp(name, "backingstore"))
+  {
+    if (!strcmp(value, "0"))
+    {
+      nxagentChangeOption(BackingStore, BackingStoreNever);
+    }
+    else
+    {
+      nxagentChangeOption(BackingStore, BackingStoreForce);
+    }
+
+    return;
+  }
+  else if (!strcmp(name, "menu"))
+  {
+    if (!strcmp(value, "0"))
+    {
+      nxagentChangeOption(Menu, 0);
+    }
+    else
+    {
+      nxagentChangeOption(Menu, 1);
+    }
+
+    return;
+  }
+  else if (strcmp(name, "shadowuid") == 0)
+  {
+    nxagentShadowUid = atoi(value);
+
+    return;
+  }
+  else if (strcmp(name, "clients") == 0)
+  {
+    strcpy(nxagentClientsLogName, value);
+
+    return;
+  }
+  else if (strcmp(name, "client") == 0)
+  {
+    if (strcmp(value, "winnt") == 0 || strcmp(value, "windows") == 0)
+    {
+      nxagentChangeOption(ClientOs, ClientOsWinnt);
+    }
+    else if (strcmp(value, "linux") == 0)
+    {
+      nxagentChangeOption(ClientOs, ClientOsLinux);
+    }
+    else if (strcmp(value, "solaris") == 0)
+    {
+      nxagentChangeOption(ClientOs, ClientOsSolaris);
+    }
+    else if (strcmp(value, "macosx") == 0)
+    {
+      nxagentChangeOption(ClientOs, ClientOsMac);
+    }
+
+    return;
+  }
+  else if  (strcmp(name, "copysize") == 0)
+  {
+    nxagentChangeOption(CopyBufferSize, atoi(value));
+
+    return;
+  }
+  else
+  {
+    #ifdef DEBUG
+    fprintf(stderr, "nxagentParseOptions: Ignored option [%s] with value [%s].\n",
+                validateString(name), validateString(value));
+    #endif
+
+    return;
+  }
+
+  /*
+   * Before passing the not yet evaluated options
+   * to ddxProcessArgument(), we have to add a dash
+   * as prefix.
+   */
+
+  if ((size = strlen(name) + 1) > 1)
+  {
+    if ((argv[0] = malloc(size + 1)) == NULL)
+    {
+      fprintf(stderr, "Warning: Ignoring option '%s' due to lack of memory.\n",
+                  name);
+
+      return;
+    }
+
+    *argv[0] = '-';
+
+    memcpy(argv[0] + 1, name, size);
+  }
+
+  ddxProcessArgument(argc, argv, 0);
+
+  free(argv[0]);
+}
+
+static void nxagentParseOptionString(char *string)
+{
+  char *value     = NULL;
+  char *option    = NULL;
+  char *delimiter = NULL;
+
+  /*
+   * Remove the port specification.
+   */
+
+  delimiter = rindex(string, ':');
+
+  if (delimiter)
+  {
+    *delimiter = 0;
+  }
+  else
+  {
+    fprintf(stderr, "Warning: Option file doesn't contain a port specification.\n");
+  }
+
+  while ((option = strtok(option ? NULL : string, ",")))
+  {
+    delimiter = rindex(option, '=');
+
+    if (delimiter)
+    {
+      *delimiter = 0;
+      value = delimiter + 1;
+    }
+    else
+    {
+      value = NULL;
+    }
+
+    nxagentParseOptions(option, value);
+  }
+}
+
+void nxagentProcessOptionsFile()
+{
+  FILE *file;
+  char *data;
+
+  int offset;
+  int size;
+
+  int sizeOfFile;
+  int maxFileSize = 1024;
+
+  #ifdef DEBUG
+  fprintf(stderr, "nxagentProcessOptionsFile: Going to process option the file [%s].\n",
+              validateString(nxagentOptionFile));
+  #endif
+
+  if (nxagentOptionFile == NULL)
+  {
+    return;
+  }
+
+  if ((file = fopen(nxagentOptionFile, "r")) == NULL)
+  {
+    fprintf(stderr, "Warning: Couldn't open option file '%s'. Error is '%s'.\n",
+                validateString(nxagentOptionFile), strerror(errno));
+
+    goto nxagentProcessOptionsFileExit;
+  }
+
+  if (fseek(file, 0, SEEK_END) != 0)
+  {
+    fprintf(stderr, "Warning: Couldn't position inside option file '%s'. Error is '%s'.\n",
+                validateString(nxagentOptionFile), strerror(errno));
+
+    goto nxagentProcessOptionsFileClose;
+  }
+
+  if ((sizeOfFile = ftell(file)) == -1)
+  {
+    fprintf(stderr, "Warning: Couldn't get the size of option file '%s'. Error is '%s'.\n",
+                validateString(nxagentOptionFile), strerror(errno));
+
+    goto nxagentProcessOptionsFileClose;
+  }
+
+  #ifdef DEBUG
+  fprintf(stderr, "nxagentProcessOptionsFile: Processing option file [%s].\n",
+              validateString(nxagentOptionFile));
+  #endif
+
+  rewind(file);
+
+  if (sizeOfFile > maxFileSize)
+  {
+    fprintf(stderr, "Warning: Maximum file size exceeded for options '%s'.\n",
+                validateString(nxagentOptionFile));
+
+    goto nxagentProcessOptionsFileClose;
+  }
+
+  if ((data = xalloc(sizeOfFile + 1)) == NULL)
+  {
+    fprintf(stderr, "Warning: Memory allocation failed processing file '%s'.\n",
+                validateString(nxagentOptionFile));
+
+    goto nxagentProcessOptionsFileClose;
+  }
+
+  offset = 0;
+  size = 0;
+
+  for (;;)
+  {
+    size_t result = fread(data + offset, 1, sizeOfFile, file);
+
+    if (ferror(file) != 0)
+    {
+      fprintf(stderr, "Warning: Error reading the option file '%s'.\n",
+                validateString(nxagentOptionFile));
+
+      goto nxagentProcessOptionsFileFree;
+    }
+
+    size   += result;
+    offset += result;
+
+    if (feof(file) != 0 || (size == sizeOfFile))
+    {
+      break;
+    }
+  }
+
+  if (size != sizeOfFile)
+  {
+    fprintf(stderr, "Warning: Premature end of option file '%s' while reading.\n",
+              validateString(nxagentOptionFile));
+
+    goto nxagentProcessOptionsFileFree;
+  }
+
+  /*
+   * Truncate the buffer to the first line.
+   */
+
+  for (offset = 0; (offset < sizeOfFile) && (data[offset] != '\n'); offset++);
+
+  data[offset] = 0;
+
+  nxagentParseOptionString(data);
+
+nxagentProcessOptionsFileFree:
+
+  if (data != NULL)
+  {
+    Xfree(data);
+  }
+
+nxagentProcessOptionsFileClose:
+
+  if (fclose(file) != 0)
+  {
+    fprintf(stderr, "Warning: Couldn't close option file '%s'. Error is '%s'.\n",
+                validateString(nxagentOptionFile), strerror(errno));
+  }
+
+nxagentProcessOptionsFileExit:
+
+  return;
+}
+
+/*
+ * FIXME: Transport initialization, shouldn't depend upon
+ *        argv[], because we call it at every reconnection.
+ */
+
+Bool nxagentPostProcessArgs(char* name, Display* dpy, Screen* scr)
+{
+    Bool useNXTrans = False;
+
+    #ifdef WATCH
+
+    fprintf(stderr, "nxagentPostProcessArgs: Watchpoint 2.\n");
+
+/*
+Reply   Total	Cached	Bits In			Bits Out		Bits/Reply	  Ratio
+------- -----	------	-------			--------		----------	  -----
+N/A
+*/
+
+    sleep(30);
+
+    #endif
+
+    if ((nxagentOption(Rootless) == 1) && nxagentOption(Fullscreen) == 1)
+    {
+      #ifdef TEST
+      fprintf(stderr, "WARNING: Ignoring fullscreen option for rootless session.\n");
+      #endif
+
+      nxagentChangeOption(Fullscreen, False);
+    }
+
+    /*
+     * Ensure we have a valid name for children dialogs.
+     */
+
+    nxagentGetDialogName();
+
+    /*
+     * Ensure we have a valid name for window name.
+     */
+
+    if (*nxagentWindowName == '\0')
+    {
+      strncpy(nxagentWindowName, "NX", 255);
+
+      *(nxagentWindowName + 255) = '\0';
+    }
+
+    /*
+     * Note that use of NX packed images as well as
+     * render extension could be later disabled due
+     * to the fact that session is running nested
+     * in a nxagent server.
+     */
+
+    if (nxagentForceNXTrans)
+    {
+      useNXTrans = True;
+    }
+    else if ((strncasecmp(name, "nx/", 3) == 0) ||
+                 (strncasecmp(name, "nx:", 3) == 0) ||
+                     (strncasecmp(name, "nx,", 3) == 0) ||
+                         (strcasecmp(name, "nx") == 0))
+    {
+      useNXTrans = True;
+    }
+
+    if (useNXTrans == True)
+    {
+      unsigned int linkType = LINK_TYPE_NONE;
+
+      unsigned int localMajor = 0;
+      unsigned int localMinor = 0;
+      unsigned int localPatch = 0;
+
+      unsigned int remoteMajor = 0;
+      unsigned int remoteMinor = 0;
+      unsigned int remotePatch = 0;
+
+      int splitTimeout  = 0;
+      int motionTimeout = 0;
+
+      int splitMode = 0;
+      int splitSize = 0;
+
+      unsigned int packMethod = PACK_NONE;
+      unsigned int packQuality = 9;
+
+      int dataLevel   = 0;
+      int streamLevel = 0;
+      int deltaLevel  = 0;
+
+      unsigned int loadCache    = 0;
+      unsigned int saveCache    = 0;
+      unsigned int startupCache = 0;
+
+      unsigned int enableClient = 0;
+      unsigned int enableServer = 0;
+
+      unsigned int clientSegment = 0;
+      unsigned int serverSegment = 0;
+
+      unsigned int clientSize = 0;
+      unsigned int serverSize = 0;
+
+      if (NXGetControlParameters(dpy, &linkType, &localMajor, &localMinor,
+                                     &localPatch, &remoteMajor, &remoteMinor, &remotePatch,
+                                         &splitTimeout, &motionTimeout, &splitMode, &splitSize,
+                                             &packMethod, &packQuality, &dataLevel, &streamLevel,
+                                                 &deltaLevel, &loadCache, &saveCache, &startupCache) == 0)
+      {
+        fprintf(stderr, "Warning: Failed to get the control parameters.\n");
+      }
+
+      nxagentChangeOption(LinkType, linkType);
+
+      #ifdef TEST
+      fprintf(stderr, "nxagentPostProcessArgs: Got local version [%d.%d.%d] remote version [%d.%d.%d].\n",
+                  localMajor, localMinor, localPatch, remoteMajor, remoteMinor, remotePatch);
+
+      fprintf(stderr, "nxagentPostProcessArgs: Got split timeout [%d] motion timeout [%d].\n",
+                  splitTimeout, motionTimeout);
+
+      fprintf(stderr, "nxagentPostProcessArgs: Got split mode [%d] split size [%d].\n",
+                  splitMode, splitSize);
+
+      fprintf(stderr, "nxagentPostProcessArgs: Got preferred pack method [%d] and quality [%d].\n",
+                  packMethod, packQuality);
+      #endif
+
+      if (remoteMajor < 2)
+      {
+        #ifdef TEST
+        fprintf(stderr, "nxagentPostProcessArgs: WARNING! Using backward compatible alpha encoding.\n");
+        #endif
+
+        nxagentAlphaCompat = 1;
+      }
+      else
+      {
+        nxagentAlphaCompat = 0;
+      }
+
+      nxagentRemoteMajor = remoteMajor;
+
+      if (nxagentPackMethod == -1)
+      {
+        nxagentPackMethod = packMethod;
+      }
+
+      if (nxagentPackQuality == -1)
+      {
+        nxagentPackQuality = packQuality;
+      }
+
+      /*
+       * Set the minimum size of images being
+       * streamed.
+       */
+
+      if (nxagentSplitThreshold == -1)
+      {
+        nxagentSplitThreshold = splitSize;
+      }
+
+      /*
+       * Let the remote proxy use the shared memory
+       * extension, if supported by the X server.
+       * The client part is not useful and not impl-
+       * emented. The size of the segment is chosen
+       * by the user. The only purpose of the message
+       * is to reserve the XID that will be used by
+       * the remote.
+       */
+
+      enableClient = 0;
+      enableServer = 1;
+
+      if (NXGetShmemParameters(dpy, &enableClient, &enableServer, &clientSegment,
+                                   &serverSegment, &clientSize, &serverSize) == 0)
+      {
+        fprintf(stderr, "Warning: Failed to get the shared memory parameters.\n");
+      }
+
+      if (enableServer == 1)
+      {
+        fprintf(stderr, "Info: Using shared memory parameters %d/%d/%d/%dK.\n",
+                    nxagentOption(SharedMemory), nxagentOption(SharedPixmaps),
+                         enableServer, serverSize / 1024);
+      }
+      else
+      {
+        fprintf(stderr, "Info: Using shared memory parameters %d/%d/0/0K.\n",
+                    nxagentOption(SharedMemory), nxagentOption(SharedPixmaps));
+      }
+
+      /*
+       * We don't need the NoExpose events. Block
+       * them at the proxy side.
+       */
+
+      NXSetExposeParameters(nxagentDisplay, 1, 1, 0);
+    }
+    else
+    {
+      /*
+       * We don't have a proxy on the remote side.
+       */
+
+      nxagentChangeOption(LinkType, LINK_TYPE_NONE);
+    }
+
+    /*
+     * Set the lossless and lossy pack methods
+     * based on the user's preferences and the
+     * selected link type.
+     */
+
+    nxagentSetPackMethod();
+
+    /*
+     * If not set, set the defer level and the
+     * synchronization timeout based on the link
+     * type.
+     */
+
+    nxagentSetDeferLevel();
+
+    /*
+     * Also set the display output buffer size.
+     */
+
+    nxagentSetBufferSize();
+
+    /*
+     * Select the preferred scheduler.
+     */
+
+    nxagentSetScheduler();
+
+    /*
+     * Select the buffer coalescence timeout.
+     */
+
+    nxagentSetCoalescence();
+
+    /*
+     * Set the other defaults.
+     */
+
+    if (nxagentOption(Fullscreen) == UNDEFINED)
+    {
+      nxagentChangeOption(Fullscreen, False);
+    }
+
+    if (nxagentOption(AllScreens) == UNDEFINED)
+    {
+      nxagentChangeOption(AllScreens, False);
+    }
+
+    if (nxagentOption(Binder) == UNDEFINED)
+    {
+      nxagentChangeOption(Binder, False);
+    }
+
+    if (nxagentOption(Rootless) == UNDEFINED)
+    {
+      nxagentChangeOption(Rootless, False);
+    }
+
+    if (nxagentOption(Desktop) == UNDEFINED)
+    {
+      nxagentChangeOption(Desktop, True);
+    }
+
+    /*
+     * The enableBackingStore flag is defined
+     * in window.c in the dix.
+     */
+/*
+FIXME: In rootless mode the backing-store support is not functional yet.
+*/
+    if (nxagentOption(Rootless))
+    {
+      enableBackingStore = 0;
+    }
+    else if (nxagentOption(BackingStore) == BackingStoreUndefined ||
+                 nxagentOption(BackingStore) == BackingStoreForce)
+    {
+      enableBackingStore = 1;
+    }
+    else if (nxagentOption(BackingStore) == BackingStoreNever)
+    {
+      enableBackingStore = 0;
+    }
+
+    /*
+     * need to check if this was set on the
+     * command line as this has the priority
+     * over the option file.
+     */
+ 
+    if (nxagentRenderEnable == UNDEFINED)
+    {
+      nxagentRenderEnable = True;
+    }
+    
+    if (nxagentRenderEnable == True)
+    {
+      nxagentAlphaEnabled = True;
+    }
+    else
+    {
+      nxagentAlphaEnabled = False;
+    }
+
+    if ((nxagentOption(Rootless) == 1) && nxagentOption(Xdmcp))
+    {
+      FatalError("PANIC! Cannot start a XDMCP session in rootless mode.\n");
+    }
+
+    /*
+     * We enable server reset only for indirect
+     * XDMCP sessions.
+     */
+
+    if (nxagentOption(Reset) == True && nxagentMaxAllowedResets == 0)
+    {
+      #ifdef WARNING
+      fprintf(stderr, "nxagentPostProcessArgs: Disabling the server reset.\n");
+      #endif
+
+      nxagentChangeOption(Reset, False);
+
+      dispatchExceptionAtReset = 0;
+    }
+
+    /*
+     * We skip server reset by default. This should
+     * be equivalent to passing the -noreset option
+     * to a standard XFree86 server.
+     */
+
+    if (nxagentOption(Reset) == False)
+    {
+      #ifdef TEST
+      fprintf(stderr, "nxagentPostProcessArgs: Disabling dispatch of exception at server reset.\n");
+      #endif
+
+      dispatchExceptionAtReset = 0;
+    }
+
+    /*
+     * Check if the user activated the auto-disconect
+     * feature.
+     */
+
+    if (nxagentOption(Timeout) > 0)
+    {
+      fprintf(stderr, "Info: Using auto-disconnect timeout of %d seconds.\n",
+                  nxagentOption(Timeout));
+
+      nxagentAutoDisconnectTimeout = nxagentOption(Timeout) * MILLI_PER_SECOND;
+    }
+
+    #ifdef WATCH
+
+    fprintf(stderr, "nxagentPostProcessArgs: Watchpoint 3.\n");
+
+/*
+Reply   Total	Cached	Bits In			Bits Out		Bits/Reply	  Ratio
+------- -----	------	-------			--------		----------	  -----
+#16     1		256 bits (0 KB) ->	12 bits (0 KB) ->	256/1 -> 12/1	= 21.333:1
+#233 A  1		256 bits (0 KB) ->	131 bits (0 KB) ->	256/1 -> 131/1	= 1.954:1
+#245 A  2		512 bits (0 KB) ->	19 bits (0 KB) ->	256/1 -> 10/1	= 26.947:1
+*/
+
+    sleep(30);
+
+    #endif
+
+    return useNXTrans;
+}
+
+void ddxUseMsg()
+{
+  ErrorF("-display string        display name of the real server\n");
+  ErrorF("-sync                  synchronize with the real server\n");
+  ErrorF("-full                  utilize full regeneration\n");
+  ErrorF("-class string          default visual class\n");
+  ErrorF("-depth int             default depth\n");
+  ErrorF("-geometry WxH+X+Y      window size and position\n");
+  ErrorF("-bw int                window border width\n");
+  ErrorF("-name string           window name\n");
+  ErrorF("-scrns int             number of screens to generate\n");
+  ErrorF("-install               install colormaps directly\n");
+
+  ErrorF("The NX system adds the following arguments:\n");
+  ErrorF("-forcenx               force use of NX protocol messages assuming communication through nxproxy\n");
+  ErrorF("-timeout int           auto-disconnect timeout in seconds (minimum allowed: 60)\n");
+#ifdef RENDER
+  ErrorF("-norender              disable the use of the render extension\n");
+  ErrorF("-nocomposite           disable the use of the composite extension\n");
+#endif
+  ErrorF("-nopersistent          disable disconnection/reconnection to the X display on SIGHUP\n");
+  ErrorF("-noshmem               disable use of shared memory extension\n");
+  ErrorF("-shmem                 enable use of shared memory extension\n");
+  ErrorF("-noshpix               disable use of shared pixmaps\n");
+  ErrorF("-shpix                 enable use of shared pixmaps\n");
+  ErrorF("-noignore              don't ignore pointer and keyboard configuration changes mandated by clients\n");
+  ErrorF("-nokbreset             don't reset keyboard device if the session is resumed\n");
+  ErrorF("-noxkblock             always allow applications to change layout through XKEYBOARD\n");
+  ErrorF("-tile WxH              size of image tiles (minimum allowed: 32x32)\n");
+  ErrorF("-D                     enable desktop mode\n");
+  ErrorF("-R                     enable rootless mode\n");
+  ErrorF("-S                     enable shadow mode\n");
+  ErrorF("-B                     enable proxy binding mode\n");
+}
+
+static int nxagentGetDialogName()
+{
+  strcpy(nxagentDialogName, "NX");
+
+  *(nxagentDialogName + 255) = '\0';
+
+  if (*nxagentSessionId != '\0')
+  {
+    int length = strlen(nxagentSessionId);
+
+    strcpy(nxagentDialogName, "NX - ");
+
+    if (length > (MD5_LENGTH * 2 + 1) &&
+           *(nxagentSessionId + (length - (MD5_LENGTH * 2 + 1))) == '-')
+    {
+      strncat(nxagentDialogName, nxagentSessionId, length - (MD5_LENGTH * 2 + 1));
+    }
+    else
+    {
+      strncat(nxagentDialogName, nxagentSessionId, 250);
+    }
+
+    *(nxagentSessionId + 255) = '\0';
+
+    return 1;
+  }
+
+  return 0;
+}
+
+void nxagentSetPackMethod(void)
+{
+  unsigned char supportedMethods[NXNumberOfPackMethods];
+  unsigned int entries = NXNumberOfPackMethods;
+
+  int method;
+
+  if (nxagentOption(LinkType) == LINK_TYPE_NONE)
+  {
+    nxagentChangeOption(Streaming, 0);
+
+    nxagentPackMethod   = PACK_NONE;
+    nxagentPackLossless = PACK_NONE;
+
+    nxagentSplitThreshold = 0;
+
+    return;
+  }
+
+  /*
+   * Check if we need to select the lossy
+   * and lossless pack methods based on
+   * the link type.
+   */
+
+  method = nxagentPackMethod;
+
+  if (method == PACK_ADAPTIVE)
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetPackMethod: Using adaptive mode for image compression.\n");
+    #endif
+
+    nxagentChangeOption(Adaptive, 1);
+  }
+  else
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetPackMethod: Not using adaptive mode for image compression.\n");
+    #endif
+
+    nxagentChangeOption(Adaptive, 0);
+  }
+  
+  if (method == PACK_LOSSY || method == PACK_ADAPTIVE)
+  {
+    nxagentPackMethod = PACK_JPEG_16M_COLORS;
+  }
+  else if (method == PACK_LOSSLESS)
+  {
+    switch (nxagentOption(LinkType))
+    {
+      case LINK_TYPE_MODEM:
+      case LINK_TYPE_ISDN:
+      case LINK_TYPE_ADSL:
+      case LINK_TYPE_WAN:
+      {
+        nxagentPackMethod = PACK_BITMAP_16M_COLORS;
+
+        break;
+      }
+      case LINK_TYPE_LAN:
+      {
+        nxagentPackMethod = PACK_RLE_16M_COLORS;
+
+        break;
+      }
+      default:
+      {
+        fprintf(stderr, "Warning: Unknown link type '%d' while setting the pack method.\n",
+                    nxagentOption(LinkType));
+
+        break;
+      }
+    }
+  }
+
+  /*
+   * Query the remote proxy to determine
+   * whether the selected methods are
+   * supported.
+   */
+
+  if (NXGetUnpackParameters(nxagentDisplay, &entries, supportedMethods) == 0 ||
+          entries != NXNumberOfPackMethods)
+  {
+    fprintf(stderr, "Warning: Unable to retrieve the supported pack methods.\n");
+
+    nxagentPackMethod   = PACK_NONE;
+    nxagentPackLossless = PACK_NONE;
+  }
+  else
+  {
+    if (nxagentPackMethod == PACK_BITMAP_16M_COLORS ||
+            nxagentPackMethod == PACK_RLE_16M_COLORS ||
+                nxagentPackMethod == PACK_RGB_16M_COLORS ||
+                    nxagentPackMethod == PACK_NONE)
+    {
+      nxagentPackLossless = nxagentPackMethod;
+    }
+    else
+    {
+      if (nxagentOption(LinkType) == LINK_TYPE_LAN)
+      {
+        nxagentPackLossless = PACK_RLE_16M_COLORS;
+      }
+      else
+      {
+        nxagentPackLossless = PACK_BITMAP_16M_COLORS;
+      }
+    }
+
+    if (supportedMethods[nxagentPackLossless] == 0)
+    {
+      nxagentPackLossless = PACK_NONE;
+    }
+
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetPackMethod: Using method [%d] for lossless compression.\n",
+                nxagentPackLossless);
+    #endif
+
+    if (supportedMethods[nxagentPackMethod] == 0)
+    {
+      fprintf(stderr, "Warning: Pack method '%d' not supported by the proxy.\n",
+                  nxagentPackMethod);
+
+      fprintf(stderr, "Warning: Replacing with lossless pack method '%d'.\n",
+                  nxagentPackLossless);
+
+      nxagentPackMethod = nxagentPackLossless;
+    }
+  }
+
+  if (nxagentPackMethod == nxagentPackLossless)
+  {
+    nxagentPackQuality = 9;
+  }
+
+  #ifdef TEST
+  fprintf(stderr, "nxagentSetPackMethod: Assuming pack methods [%d] and [%d] with "
+              "quality [%d].\n", nxagentPackMethod, nxagentPackLossless, nxagentPackQuality);
+  #endif
+}
+
+/*
+ * Each defer level adds the following rules to the previous ones:
+ *
+ * Level 0  Eager encoding.
+ *
+ * Level 1  No data is put or copied on pixmaps, marking them always
+ *          as corrupted and synchronizing them on demand, i.e. when
+ *          a copy area to a window is requested, the source is syn-
+ *          chronized before copying it.
+ *
+ * Level 2  The put images over the windows are skipped marking the
+ *          destination as corrupted. The same happens for copy area
+ *          and composite operations, spreading the corrupted regions
+ *          of involved drawables.
+ */
+
+void nxagentSetDeferLevel()
+{
+  int deferLevel;
+  int tileWidth;
+  int tileHeight;
+  int deferTimeout;
+
+  /*
+   * Streaming is only partly implemented
+   * and is not available in this version
+   * of the agent.
+   */
+
+  if (nxagentOption(Streaming) == 1)
+  {
+    fprintf(stderr, "Warning: Streaming of images not available in this agent.\n");
+
+    nxagentChangeOption(Streaming, 0);
+  }
+
+  switch (nxagentOption(LinkType))
+  {
+    case LINK_TYPE_MODEM:
+    {
+      deferLevel = 2;
+
+      tileWidth  = 64;
+      tileHeight = 64;
+
+      deferTimeout = 200;
+
+      break;
+    }
+    case LINK_TYPE_ISDN:
+    {
+      deferLevel = 2;
+
+      tileWidth  = 64;
+      tileHeight = 64;
+
+      deferTimeout = 200;
+
+      break;
+    }
+    case LINK_TYPE_ADSL:
+    {
+      deferLevel = 2;
+
+      deferTimeout = 200;
+
+      tileWidth  = 4096;
+      tileHeight = 4096;
+
+      break;
+    }
+    case LINK_TYPE_WAN:
+    {
+      deferLevel = 1;
+
+      deferTimeout = 200;
+
+      tileWidth  = 4096;
+      tileHeight = 4096;
+
+      break;
+    }
+    case LINK_TYPE_NONE:
+    case LINK_TYPE_LAN:
+    {
+      deferLevel = 0;
+
+      deferTimeout = 200;
+
+      tileWidth  = 4096;
+      tileHeight = 4096;
+
+      break;
+    }
+    default:
+    {
+      fprintf(stderr, "Warning: Unknown link type [%d] processing the defer option.\n",
+                  nxagentOption(LinkType));
+
+      deferLevel = 0;
+
+      tileWidth  = 64;
+      tileHeight = 64;
+
+      deferTimeout = 200;
+
+      break;
+    }
+  }
+
+  /*
+   * Set the defer timeout.
+   */
+
+  if (nxagentOption(Shadow) == 1)
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Ignoring defer timeout parameter in shadow mode.\n");
+    #endif
+  }
+  else
+  {
+    nxagentChangeOption(DeferTimeout, deferTimeout);
+  }
+
+  /*
+   * Set the defer level.
+   */
+
+  if (nxagentOption(Shadow) == 1)
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Ignoring defer parameter in shadow mode.\n");
+    #endif
+  }
+  else if (nxagentOption(DeferLevel) != UNDEFINED)
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Not overriding the [defer] option "
+                "with value [%d]. Defer timeout is [%ld] ms.\n", nxagentOption(DeferLevel),
+                    nxagentOption(DeferTimeout));
+    #endif
+  }
+  else
+  {
+    nxagentChangeOption(DeferLevel, deferLevel);
+
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Assuming defer level [%d] with timeout of [%ld] ms.\n",
+                nxagentOption(DeferLevel), nxagentOption(DeferTimeout));
+    #endif
+  }
+
+  /*
+   * Set the tile width.
+   */
+
+  if (nxagentOption(TileWidth) != UNDEFINED)
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Not overriding the [tile] option "
+                "width value [%d].\n", nxagentOption(TileWidth));
+    #endif
+  }
+  else
+  {
+    nxagentChangeOption(TileWidth, tileWidth);
+
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Assuming tile width [%d].\n",
+                 nxagentOption(TileWidth));
+    #endif
+  }
+
+  /*
+   * Set the tile height.
+   */
+  
+  if (nxagentOption(TileHeight) != UNDEFINED)
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Not overriding the [tile] option "
+                "height value [%d].\n", nxagentOption(TileHeight));
+    #endif
+  }
+  else
+  {
+    nxagentChangeOption(TileHeight, tileHeight);
+
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetDeferLevel: Assuming tile height [%d].\n",
+                 nxagentOption(TileHeight));
+    #endif
+  }
+}
+
+void nxagentSetBufferSize()
+{
+  int size;
+
+  switch (nxagentOption(LinkType))
+  {
+    case LINK_TYPE_MODEM:
+    {
+      size = 4096;
+
+      break;
+    }
+    case LINK_TYPE_ISDN:
+    {
+      size = 4096;
+
+      break;
+    }
+    case LINK_TYPE_ADSL:
+    {
+      size = 8192;
+
+      break;
+    }
+    case LINK_TYPE_WAN:
+    {
+      size = 16384;
+
+      break;
+    }
+    case LINK_TYPE_NONE:
+    case LINK_TYPE_LAN:
+    {
+      size = 16384;
+
+      break;
+    }
+    default:
+    {
+      fprintf(stderr, "Warning: Unknown link type '%d' while setting the display buffer size.\n",
+                  nxagentOption(LinkType));
+
+      size = 16384;
+
+      break;
+    }
+  }
+
+  nxagentChangeOption(DisplayBuffer, size);
+
+  nxagentBuffer = size;
+
+  if (NXSetDisplayBuffer(nxagentDisplay, nxagentBuffer) < 0)
+  {
+    fprintf(stderr, "Warning: Can't set the display buffer size to [%d].\n",
+                nxagentBuffer);
+  }
+}
+
+void nxagentSetScheduler()
+{
+  #ifdef DISABLE_SMART_SCHEDULE
+
+  #ifdef SMART_SCHEDULE
+
+  #ifdef TEST
+  fprintf(stderr, "nxagentSetScheduler: Disabling the smart scheduler.\n");
+  #endif
+
+  nxagentDisableTimer();
+
+  #endif
+
+  #else /* #ifdef DISABLE_SMART_SCHEDULE */
+
+  /*
+   * The smart scheduler is the default.
+   */
+
+  #ifdef SMART_SCHEDULE
+
+  if (nxagentOption(Shadow) == 1)
+  {
+    #ifdef TEST
+    fprintf(stderr, "nxagentSetScheduler: Using the dumb scheduler in shadow mode.\n");
+    #endif
+
+    nxagentDisableTimer();
+  }
+
+  #endif
+
+  #endif /* #ifdef DISABLE_SMART_SCHEDULE */
+}
+
+void nxagentSetCoalescence()
+{
+  int timeout;
+
+  switch (nxagentOption(LinkType))
+  {
+    case LINK_TYPE_MODEM:
+    {
+      timeout = 50;
+
+      break;
+    }
+    case LINK_TYPE_ISDN:
+    {
+      timeout = 20;
+
+      break;
+    }
+    case LINK_TYPE_ADSL:
+    {
+      timeout = 10;
+
+      break;
+    }
+    case LINK_TYPE_WAN:
+    {
+      timeout = 5;
+
+      break;
+    }
+    case LINK_TYPE_NONE:
+    case LINK_TYPE_LAN:
+    {
+      timeout = 0;
+
+      break;
+    }
+    default:
+    {
+      fprintf(stderr, "Warning: Unknown link type '%d' while setting the display coalescence.\n",
+                  nxagentOption(LinkType));
+
+      timeout = 0;
+
+      break;
+    }
+  }
+
+  #ifdef TEST
+  fprintf(stderr, "nxagentSetCoalescence: Using coalescence timeout of [%d] ms.\n",
+              timeout);
+  #endif
+
+  nxagentChangeOption(DisplayCoalescence, timeout);
+}
+