first clipboard checkin

1 files changed, 710 insertions, 0 deletions

diff --git a/sesman/chansrv/clipboard.c b/sesman/chansrv/clipboard.c
index 59d39fbd..a38ff471 100644
--- a/sesman/chansrv/clipboard.c
+++ b/sesman/chansrv/clipboard.c
@@ -15,18 +15,375 @@
 
    xrdp: A Remote Desktop Protocol server.
    Copyright (C) Jay Sorg 2009
+
+   for help see
+   http://tronche.com/gui/x/icccm/sec-2.html#s-2
+   .../kde/kdebase/workspace/klipper/clipboardpoll.cpp
+
 */
 
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+#include <X11/extensions/Xfixes.h>
 #include "arch.h"
 #include "parse.h"
 #include "os_calls.h"
+#include "chansrv.h"
+
+static Display* g_display = 0;
+static Atom g_clipboard_atom = 0;
+static Atom g_clip_property_atom = 0;
+static Atom g_timestamp_atom = 0;
+static Atom g_multiple_atom = 0;
+static Atom g_targets_atom = 0;
+static Atom g_primary_atom = 0;
+static int g_x_socket = 0;
+static tbus g_x_wait_obj = 0;
+static int g_clip_up = 0;
+static Window g_wnd = 0;
+static Screen* g_screen = 0;
+static int g_screen_num = 0;
+static int g_xfixes_event_base = 0;
+static int g_sck_closed = 0;
+
+static int g_last_clip_size = 0;
+static char* g_last_clip_data = 0;
+static Atom g_last_clip_type = 0;
+
+static int g_got_selection = 0; /* boolean */
+static Time g_selection_time = 0;
 
 extern int g_cliprdr_chan_id; /* in chansrv.c */
 
 /*****************************************************************************/
+/* returns time in miliseconds
+   this is like g_time2 in os_calls, but not miliseconds since machine was
+   up, something else
+   this is a time value similar to what the xserver uses */
+static Time APP_CC
+clipboard_get_time(void)
+{
+  return g_time3();
+}
+
+/*****************************************************************************/
+/* returns error */
 int APP_CC
 clipboard_init(void)
 {
+  struct stream* s;
+  int size;
+  int rv;
+  int input_mask;
+  int dummy;
+  int ver_maj;
+  int ver_min;
+  Status st;
+
+  if (g_clip_up)
+  {
+    return 0;
+  }
+  rv = 0;
+  g_sleep(500);
+  g_display = XOpenDisplay(0);
+  if (g_display == 0)
+  {
+    g_writeln("xrdp-chansrv: clipboard_init: XOpenDisplay failed");
+    rv = 1;
+  }
+  if (rv == 0)
+  {
+    g_x_socket = XConnectionNumber(g_display);
+    if (g_x_socket == 0)
+    {
+      g_writeln("xrdp-chansrv: clipboard_init: XConnectionNumber failed");
+      rv = 2;
+    }
+    g_x_wait_obj = g_create_wait_obj_from_socket(g_x_socket, 0);
+  }
+  if (rv == 0)
+  {
+    g_clipboard_atom = XInternAtom(g_display, "CLIPBOARD", False);
+    if (g_clipboard_atom == None)
+    {
+      g_writeln("xrdp-chansrv: clipboard_init: XInternAtom failed");
+      rv = 3;
+    }
+  }
+  if (rv == 0)
+  {
+    if (!XFixesQueryExtension(g_display, &g_xfixes_event_base, &dummy))
+    {
+      g_writeln("xrdp-chansrv: clipboard_init: no xfixes");
+      rv = 5;
+    }
+  }
+  if (rv == 0)
+  {
+    g_writeln("xrdp-chansrv: clipboard_init: g_xfixes_event_base %d",
+              g_xfixes_event_base);
+    st = XFixesQueryVersion(g_display, &ver_maj, &ver_min);
+    g_writeln("xrdp-chansrv: clipboard_init st %d, maj %d min %d",
+              st, ver_maj, ver_min);
+    g_screen_num = DefaultScreen(g_display);
+    g_screen = ScreenOfDisplay(g_display, g_screen_num);
+    g_clip_property_atom = XInternAtom(g_display, "XRDP_CLIP_PROPERTY_ATOM",
+                                       False);
+    g_timestamp_atom = XInternAtom(g_display, "TIMESTAMP", False);
+    g_targets_atom = XInternAtom(g_display, "TARGETS", False);
+    g_multiple_atom = XInternAtom(g_display, "MULTIPLE", False);
+    g_primary_atom = XInternAtom(g_display, "PRIMARY", False);
+    g_wnd = XCreateSimpleWindow(g_display, RootWindowOfScreen(g_screen),
+                                0, 0, 4, 4, 0, 0, 0);
+    input_mask = StructureNotifyMask;
+    XSelectInput(g_display, g_wnd, input_mask);
+    //XMapWindow(g_display, g_wnd);
+    XFixesSelectSelectionInput(g_display, g_wnd,
+                               g_clipboard_atom,
+                               XFixesSetSelectionOwnerNotifyMask |
+                               XFixesSelectionWindowDestroyNotifyMask |
+                               XFixesSelectionClientCloseNotifyMask);
+  }
+  if (rv == 0)
+  {
+    make_stream(s);
+    init_stream(s, 8192);
+    out_uint16_le(s, 1); /* CLIPRDR_CONNECT */
+    out_uint16_le(s, 0); /* status */
+    out_uint32_le(s, 0); /* length */
+    out_uint32_le(s, 0); /* extra 4 bytes ? */
+    s_mark_end(s);
+    size = (int)(s->end - s->data);
+    g_writeln("xrdp-chansrv: clipboard_init: data out, sending "
+              "CLIPRDR_CONNECT (clip_msg_id = 1)");
+    rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
+    if (rv != 0)
+    {
+      g_writeln("xrdp-chansrv: clipboard_init: send_channel_data failed "
+                "rv = %d", rv);
+      rv = 4;
+    }
+    free_stream(s);
+  }
+  if (rv == 0)
+  {
+    g_clip_up = 1;
+    g_writeln("xrdp-chansrv: clipboard_init: dumping env");
+    g_system("env");
+  }
+  return rv;
+}
+
+/*****************************************************************************/
+int APP_CC
+clipboard_deinit(void)
+{
+  if (!g_clip_up)
+  {
+    return 0;
+  }
+  if (!g_sck_closed)
+  {
+    g_delete_wait_obj_from_socket(g_x_wait_obj);
+    g_x_wait_obj = 0;
+    XDestroyWindow(g_display, g_wnd);
+    g_wnd = 0;
+    XCloseDisplay(g_display);
+    g_display = 0;
+    g_x_socket = 0;
+    g_sck_closed = 1;
+  }
+  g_free(g_last_clip_data);
+  g_last_clip_data = 0;
+  g_clip_up = 0;
+  return 0;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_send_data_request(void)
+{
+  struct stream* s;
+  int size;
+  int rv;
+  int num_chars;
+
+  g_writeln("xrdp-chansrv: clipboard_send_data_request:");
+  make_stream(s);
+  init_stream(s, 8192);
+  out_uint16_le(s, 4); /* CLIPRDR_DATA_REQUEST */
+  out_uint16_le(s, 0); /* status */
+  out_uint32_le(s, 4); /* length */
+  out_uint32_le(s, 0x0d);
+  s_mark_end(s);
+  size = (int)(s->end - s->data);
+  g_writeln("xrdp-chansrv: clipboard_send_data_request: data out, sending "
+            "CLIPRDR_DATA_REQUEST (clip_msg_id = 4)");
+  rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
+  free_stream(s);
+  return rv;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_send_format_ack(void)
+{
+  struct stream* s;
+  int size;
+  int rv;
+
+  make_stream(s);
+  init_stream(s, 8192);
+  out_uint16_le(s, 3); /* CLIPRDR_FORMAT_ACK */
+  out_uint16_le(s, 1); /* status */
+  out_uint32_le(s, 0); /* length */
+  out_uint32_le(s, 0); /* extra 4 bytes ? */
+  s_mark_end(s);
+  size = (int)(s->end - s->data);
+  g_writeln("xrdp-chansrv: clipboard_send_format_ack: data out, sending "
+            "CLIPRDR_FORMAT_ACK (clip_msg_id = 3)");
+  rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
+  free_stream(s);
+  return rv;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_send_format_announce(void)
+{
+  struct stream* s;
+  int size;
+  int rv;
+
+  make_stream(s);
+  init_stream(s, 8192);
+  out_uint16_le(s, 2); /* CLIPRDR_FORMAT_ANNOUNCE */
+  out_uint16_le(s, 0); /* status */
+  out_uint32_le(s, 0x90); /* length */
+  out_uint32_le(s, 0x0d); /* extra 4 bytes ? */
+  out_uint8s(s, 0x90);
+  s_mark_end(s);
+  size = (int)(s->end - s->data);
+  g_writeln("xrdp-chansrv: clipboard_send_format_announce: data out, sending "
+            "CLIPRDR_FORMAT_ANNOUNCE (clip_msg_id = 2)");
+  rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
+  free_stream(s);
+  return rv;
+}
+
+/*****************************************************************************/
+/* returns number of bytes written */
+static int APP_CC
+clipboard_out_unicode(struct stream* s, char* text, int num_chars)
+{
+  int index;
+  int lnum_chars;
+  twchar* ltext;
+
+  if (num_chars < 1)
+  {
+    return 0;
+  }
+  lnum_chars = g_mbstowcs(0, text, num_chars);
+  if (lnum_chars < 0)
+  {
+    return 0;
+  }
+  ltext = g_malloc((num_chars + 1) * sizeof(twchar), 1);
+  g_mbstowcs(ltext, text, num_chars);
+  index = 0;
+  while (index < num_chars)
+  {
+    out_uint16_le(s, ltext[index]);
+    index++;
+  }
+  g_free(ltext);
+  return index * 2;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_send_data_response(void)
+{
+  struct stream* s;
+  int size;
+  int rv;
+  int num_chars;
+
+  g_writeln("xrdp-chansrv: clipboard_send_data_response:");
+  num_chars = 0;
+  if (g_last_clip_type == XA_STRING)
+  {
+    num_chars = g_mbstowcs(0, g_last_clip_data, 1024);
+    if (num_chars < 0)
+    {
+      g_writeln("xrdp-chansrv: clipboard_send_data_response: bad string");
+      num_chars = 0;
+    }
+  }
+  make_stream(s);
+  init_stream(s, 8192);
+  out_uint16_le(s, 5); /* CLIPRDR_DATA_RESPONSE */
+  out_uint16_le(s, 1); /* status */
+  out_uint32_le(s, num_chars * 2 + 2); /* length */
+  if (clipboard_out_unicode(s, g_last_clip_data, num_chars) != num_chars * 2)
+  {
+    g_writeln("xrdp-chansrv: clipboard_send_data_response: error "
+              "clipboard_out_unicode didn't write right number of bytes");
+  }
+  out_uint16_le(s, 0); /* nil for string */
+  out_uint32_le(s, 0);
+  s_mark_end(s);
+  size = (int)(s->end - s->data);
+  g_writeln("xrdp-chansrv: clipboard_send_format_announce: data out, sending "
+            "CLIPRDR_DATA_RESPONSE (clip_msg_id = 5)");
+  rv = send_channel_data(g_cliprdr_chan_id, s->data, size);
+  free_stream(s);
+  return rv;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_process_format_announce(struct stream* s)
+{
+  Time now;
+
+  g_writeln("xrdp-chansrv: clipboard_process_format_announce:");
+  g_hexdump(s->p, s->end - s->p);
+  clipboard_send_format_ack();
+  g_writeln("------------------------------");
+  now = clipboard_get_time();
+  XSetSelectionOwner(g_display, g_clipboard_atom, g_wnd, now);
+  //XSetSelectionOwner(g_display, g_primary_atom, g_wnd, CurrentTime);
+  return 0;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_prcoess_format_ack(struct stream* s)
+{
+  g_writeln("xrdp-chansrv: clipboard_prcoess_format_ack:");
+  g_hexdump(s->p, s->end - s->p);
+  return 0;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_process_data_request(struct stream* s)
+{
+  g_writeln("xrdp-chansrv: clipboard_process_data_request:");
+  g_hexdump(s->p, s->end - s->p);
+  clipboard_send_data_response();
+  return 0;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_process_data_response(struct stream* s)
+{
+  g_writeln("xrdp-chansrv: clipboard_process_data_response:");
+  g_hexdump(s->p, s->end - s->p);
   return 0;
 }
 
@@ -35,13 +392,320 @@ int APP_CC
 clipboard_data_in(struct stream* s, int chan_id, int chan_flags, int length,
                   int total_length)
 {
+  int clip_msg_id;
+  int clip_msg_len;
+  int clip_msg_status;
+  int rv;
+
+  in_uint16_le(s, clip_msg_id);
+  in_uint16_le(s, clip_msg_status);
+  in_uint32_le(s, clip_msg_len);
+  g_writeln("xrdp-chansrv: clipboard_data_in: clip_msg_id %d "
+            "clip_msg_status %d clip_msg_len %d",
+            clip_msg_id, clip_msg_status, clip_msg_len);
+  rv = 0;
+  switch (clip_msg_id)
+  {
+    case 2: /* CLIPRDR_FORMAT_ANNOUNCE */
+      rv = clipboard_process_format_announce(s);
+      break;
+    case 3: /* CLIPRDR_FORMAT_ACK */
+      rv = clipboard_prcoess_format_ack(s);
+      break;
+    case 4: /* CLIPRDR_DATA_REQUEST */
+      rv = clipboard_process_data_request(s);
+      break;
+    case 5: /* CLIPRDR_DATA_RESPONSE */
+      rv = clipboard_process_data_response(s);
+      break;
+    default:
+      g_writeln("xrdp-chansrv: clipboard_data_in: unknown clip_msg_id %d",
+                clip_msg_id);
+      break;
+  }
+  return rv;
+}
+
+/*****************************************************************************/
+static int APP_CC
+clipboard_process_selection_owner_notify(XEvent* xevent)
+{
+  XFixesSelectionNotifyEvent* lxevent;
+
+  lxevent = (XFixesSelectionNotifyEvent*)xevent;
+  g_writeln("xrdp-chansrv: clipboard_process_selection_owner_notify: "
+            "window %d subtype %d owner %d",
+            lxevent->window, lxevent->subtype, lxevent->owner);
+  if (lxevent->subtype == 0)
+  {
+    XConvertSelection(g_display, g_clipboard_atom, XA_STRING,
+                      g_clip_property_atom, g_wnd, CurrentTime);
+  }
   return 0;
 }
 
 /*****************************************************************************/
+/* returns error
+   get a window property from g_wnd */
+static int APP_CC
+clipboard_get_window_property(Atom prop, Atom* type, int* fmt, int* n_items,
+                              char** xdata, int* xdata_size)
+{
+  int lfmt;
+  int lxdata_size;
+  unsigned long ln_items;
+  unsigned long llen_after;
+  tui8* lxdata;
+  Atom ltype;
+
+  lxdata = 0;
+  ltype = 0;
+  XGetWindowProperty(g_display, g_wnd, prop, 0, 0, 0,
+                     AnyPropertyType, &ltype, &lfmt, &ln_items,
+                     &llen_after, &lxdata);
+  XFree(lxdata);
+  if (ltype == 0)
+  {
+    /* XGetWindowProperty failed */
+    return 1;
+  }
+  if (llen_after < 1)
+  {
+    /* no data, ok */
+    return 0;
+  }
+  lxdata = 0;
+  ltype = 0;
+  XGetWindowProperty(g_display, g_wnd, prop, 0, (llen_after + 3) / 4, 0,
+                     AnyPropertyType, &ltype, &lfmt, &ln_items,
+                     &llen_after, &lxdata);
+  if (ltype == 0)
+  {
+    /* XGetWindowProperty failed */
+    XFree(lxdata);
+    return 1;
+  }
+  lxdata_size = (lfmt / 8) * ln_items;
+  if (lxdata_size < 1)
+  {
+    /* should not happen */
+    XFree(lxdata);
+    return 2;
+  }
+  if (llen_after > 0)
+  {
+    /* should not happen */
+    XFree(lxdata);
+    return 3;
+  }
+  if (xdata != 0)
+  {
+    *xdata = (char*)g_malloc(lxdata_size, 0);
+    g_memcpy(*xdata, lxdata, lxdata_size);
+  }
+  XFree(lxdata);
+  if (xdata_size != 0)
+  {
+    *xdata_size = lxdata_size;
+  }
+  if (fmt != 0)
+  {
+    *fmt = (int)lfmt;
+  }
+  if (n_items != 0)
+  {
+    *n_items = (int)ln_items;
+  }
+  if (type != 0)
+  {
+    *type = ltype;
+  }
+  return 0;
+}
+
+/*****************************************************************************/
+/* returns error
+   process the SelectionNotify X event, uses XSelectionEvent
+   typedef struct {
+     int type;             // SelectionNotify
+     unsigned long serial; // # of last request processed by server
+     Bool send_event;      // true if this came from a SendEvent request
+     Display *display;     // Display the event was read from
+     Window requestor;
+     Atom selection;
+     Atom target;
+     Atom property;        // atom or None
+     Time time;
+   } XSelectionEvent; */
+static int APP_CC
+clipboard_process_selection_notify(XEvent* xevent)
+{
+  XSelectionEvent* lxevent;
+  char* data;
+  int data_size;
+  int n_items;
+  int fmt;
+  int rv;
+  Atom type;
+
+  rv = 0;
+  data = 0;
+  type = 0;
+  lxevent = (XSelectionEvent*)xevent;
+  if (lxevent->property == None)
+  {
+    g_writeln("xrdp-chansrv: clipboard_process_selection_notify: clip cound "
+              "not be converted");
+    rv = 1;
+  }
+  if (rv == 0)
+  {
+    rv = clipboard_get_window_property(lxevent->property, &type, &fmt,
+                                       &n_items, &data, &data_size);
+    if (rv != 0)
+    {
+      g_writeln("xrdp-chansrv: clipboard_process_selection_notify: "
+                "clipboard_get_window_property failed error %d", rv);
+    }
+  }
+  if (rv == 0)
+  {
+    g_writeln("xrdp-chansrv: clipboard_process_selection_notify: got  "
+              "not be converted");
+    if (type == XA_STRING)
+    {
+      g_free(g_last_clip_data);
+      g_last_clip_size = data_size;
+      g_last_clip_data = g_malloc(g_last_clip_size + 1, 0);
+      g_last_clip_type = XA_STRING;
+      g_memcpy(g_last_clip_data, data, g_last_clip_size);
+      g_last_clip_data[g_last_clip_size] = 0;
+    }
+    else
+    {
+      g_writeln("xrdp-chansrv: clipboard_process_selection_notify: unknown "
+                "clipboard data type %d", type);
+      rv = 3; 
+    }
+  }
+  XDeleteProperty(g_display, g_wnd, g_clip_property_atom);
+  if (rv == 0)
+  {
+    if (clipboard_send_format_announce() != 0)
+    {
+      rv = 4;
+    }
+  }
+  g_free(data);
+  return rv;
+}
+
+/*****************************************************************************/
+/* returns error
+   process the SelectionRequest X event, uses XSelectionRequestEvent
+   typedef struct {
+     int type;             // SelectionRequest
+     unsigned long serial; // # of last request processed by server
+     Bool send_event;      // true if this came from a SendEvent request
+     Display *display;     // Display the event was read from
+     Window owner;
+     Window requestor;
+     Atom selection;
+     Atom target;
+     Atom property;
+     Time time;
+   } XSelectionRequestEvent; */
+static int APP_CC
+clipboard_process_selection_request(XEvent* xevent)
+{
+  XEvent xev;
+  XSelectionRequestEvent* lxevent;
+
+  lxevent = (XSelectionRequestEvent*)xevent;
+  g_writeln("xrdp-chansrv: clipboard_process_selection_request: g_wnd %d, "
+            ".requestor %d .owner %d .select %d .target %d .property %d",
+            g_wnd, lxevent->requestor, lxevent->owner, lxevent->selection,
+            lxevent->target, lxevent->property);
+  /* requestor is asking what the selection can be converted to */
+  if (lxevent->target == g_targets_atom)
+  {
+    g_writeln("xrdp-chansrv: clipboard_process_selection_request: g_targets_atom");
+  }
+  /* requestor is asking the time I got the selection */
+  else if (lxevent->target == g_timestamp_atom)
+  {
+    g_writeln("xrdp-chansrv: clipboard_process_selection_request: g_timestamp_atom");
+  }
+  else if (lxevent->target == g_multiple_atom)
+  {
+    g_writeln("xrdp-chansrv: clipboard_process_selection_request: g_multiple_atom");
+  }
+  else if (lxevent->target == XA_STRING)
+  {
+    g_writeln("xrdp-chansrv: clipboard_process_selection_request: XA_STRING");
+    //XChangeProperty(g_display, lxevent->requestor, lxevent->property,
+    //                XA_STRING, 8, PropModeReplace, "tes", 4);
+    //xev.xselection.property = lxevent->property;
+  }
+  else
+  {
+    g_writeln("xrdp-chansrv: clipboard_process_selection_request: unknown "
+              "target %s", XGetAtomName(g_display, lxevent->target));
+  }
+  g_memset(&xev, 0, sizeof(xev));
+  xev.xselection.type = SelectionNotify;
+  xev.xselection.serial = 0;
+  xev.xselection.send_event = True;
+  xev.xselection.requestor = lxevent->requestor;
+  xev.xselection.selection = lxevent->selection;
+  xev.xselection.target = lxevent->target;
+  xev.xselection.property = None;
+  xev.xselection.time = lxevent->time;
+  XSendEvent(g_display, lxevent->requestor, False, NoEventMask, &xev);
+  return 0;
+}
+
+/*****************************************************************************/
+/* returns error
+   process the SelectionClear X event, uses XSelectionClearEvent
+   typedef struct {
+     int type;                // SelectionClear
+     unsigned long serial;    // # of last request processed by server
+     Bool send_event;         // true if this came from a SendEvent request
+     Display *display;        // Display the event was read from
+     Window window;
+     Atom selection;
+     Time time;
+} XSelectionClearEvent; */
+static int APP_CC
+clipboard_process_selection_clear(XEvent* xevent)
+{
+  g_writeln("xrdp-chansrv: clipboard_process_selection_clear:");
+  g_got_selection = 0;
+  return 0;
+}
+
+/*****************************************************************************/
+/* returns error
+   this is called to get any wait objects for the main loop
+   timeout can be nil */
 int APP_CC
 clipboard_get_wait_objs(tbus* objs, int* count, int* timeout)
 {
+  int lcount;
+
+  if ((!g_clip_up) || (objs == 0) || (count == 0))
+  {
+    return 0;
+  }
+  if (g_sck_closed)
+  {
+    return 0;
+  }
+  lcount = *count;
+  objs[lcount] = g_x_wait_obj;
+  lcount++;
+  *count = lcount;
   return 0;
 }
 
@@ -49,5 +713,51 @@ clipboard_get_wait_objs(tbus* objs, int* count, int* timeout)
 int APP_CC
 clipboard_check_wait_objs(void)
 {
+  XEvent xevent;
+
+  if (!g_clip_up)
+  {
+    return 0;
+  }
+  if (g_sck_closed)
+  {
+    return 0;
+  }
+  if (g_is_wait_obj_set(g_x_wait_obj))
+  {
+    if (XPending(g_display) < 1)
+    {
+      /* something is wrong, should not get here */
+      g_writeln("xrdp-chansrv: clipboard_check_wait_objs: sck closed");
+      g_sck_closed = 1;
+      return 0;
+    }
+    while (XPending(g_display) > 0)
+    {
+      XNextEvent(g_display, &xevent);
+      switch (xevent.type)
+      {
+        case SelectionNotify:
+          clipboard_process_selection_notify(&xevent);
+          break;
+        case SelectionRequest:
+          clipboard_process_selection_request(&xevent);
+          break;
+        case SelectionClear:
+          clipboard_process_selection_clear(&xevent);
+          break;
+        default:
+          if (xevent.type == g_xfixes_event_base +
+                             XFixesSetSelectionOwnerNotify)
+          {
+            clipboard_process_selection_owner_notify(&xevent);
+            break;
+          }
+          g_writeln("xrdp-chansrv: clipboard_check_wait_objs type %d",
+                    xevent.type);
+          break;
+      }
+    }
+  }
   return 0;
 }