trunk/rdesktop/cliprdr.c

/* -*- c-basic-offset: 8 -*-
   rdesktop: A Remote Desktop Protocol client.
   Protocol services - Clipboard functions
   Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/

#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include "rdesktop.h"

extern BOOL encryption;
extern Display *display;
extern Window wnd;
extern Time last_gesturetime;

// static Time selection_timestamp;
static Atom clipboard_atom, primary_atom, targets_atom, timestamp_atom;
static Atom rdesktop_clipboard_target_atom, incr_atom;
static cliprdr_dataformat *server_formats = NULL;
static uint16 num_server_formats = 0;
static XSelectionEvent selection_event;
static uint16 clipboard_channelno;
static Atom targets[NUM_TARGETS];

static void
cliprdr_print_server_formats(void) 
{
#ifdef WITH_DEBUG_CLIPBOARD
        cliprdr_dataformat *this;
        uint16 i = 0;
        this = server_formats;
        DEBUG_CLIPBOARD(("There should be %d server formats.\n", num_server_formats));
        while (NULL != this) 
        {
                DEBUG_CLIPBOARD(("Format code %d\n", this->identifier));
                i++;
                this = this->next;
        }
        DEBUG_CLIPBOARD(("There were %d server formats.\n", i));
#endif
}
/*
static void 
cliprdr_set_selection_timestamp(void)
{
        XEvent xev;
        DEBUG_CLIPBOARD(("Changing a property in order to get a timestamp\n"));
        fflush(stdout);
        XChangeProperty(display, wnd, rdesktop_clipboard_target_atom,
                        XA_ATOM, 32, PropModeAppend, 0, 0);
        DEBUG_CLIPBOARD(("Waiting for PropertyChange on wnd\n"));
        fflush(stdout); 
        XWindowEvent(display, wnd, 
                     PropertyChangeMask, &xev);
        DEBUG_CLIPBOARD(("Setting selection_timestamp\n"));
        fflush(stdout); 
        selection_timestamp = xev.xproperty.time;
}       
*/      

static void
cliprdr_send_format_announce(void) 
{
        DEBUG_CLIPBOARD(("Sending format announce\n"));

        STREAM s;
        int number_of_formats = 1;
        s = sec_init(encryption ? SEC_ENCRYPT : 0, number_of_formats*36+12+4+4);
        out_uint32_le(s, number_of_formats*36+12);
        out_uint32_le(s, 0x13);
        out_uint16_le(s, 2);
        out_uint16_le(s, 0);
        out_uint32_le(s, number_of_formats*36);
        
        //      out_uint32_le(s, 0xd); // FIXME: This is a rather bogus unicode text description..
        //      rdp_out_unistr(s, "", 16);
        //      out_uint8s(s, 32);


        out_uint32_le(s, 1); // FIXME: This is a rather bogus text description..
        out_uint8s(s, 32);

        out_uint32_le(s, 0); 

        s_mark_end(s);
        sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, 
                            clipboard_channelno); 
}


static void
cliprdr_send_empty_datapacket(void)
{
        STREAM out;
        out =  sec_init(encryption ? SEC_ENCRYPT : 0, 
                        20);
        out_uint32_le(out, 12);
        out_uint32_le(out, 0x13);
        out_uint16_le(out, 5);
        out_uint16_le(out, 1);
        out_uint32_le(out, 0);
        /* Insert null string here? */
        out_uint32_le(out, 0);
        s_mark_end(out);
        
        sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, 
                            clipboard_channelno); 
}


void 
cliprdr_handle_SelectionNotify(XSelectionEvent *event)
{

        unsigned char   *data, *datap;
        unsigned long   nitems, bytes_left;
        
        unsigned long bytes_left_to_transfer;
        int res, i;

        int format;
        Atom type_return;
        Atom best_target;
        Atom *supported_targets;

        STREAM out;
        
        DEBUG_CLIPBOARD(("cliprdr_handle_SelectionNotify\n"));

        if (None == event->property) {
                cliprdr_send_empty_datapacket();
                return; /* Selection failed */
        } 

        DEBUG_CLIPBOARD(("selection: %s, target: %s, property: %s\n",
                         XGetAtomName(display, event->selection),
                         XGetAtomName(display, event->target),
                         XGetAtomName(display, event->property)));

        if (targets_atom == event->target) {
                /* Response to TARGETS request. Let's find the target
                   we want and request that */
                res = XGetWindowProperty(display, wnd, 
                                         rdesktop_clipboard_target_atom,
                                         0L, 4096L, False, AnyPropertyType, 
                                         &type_return,
                                         &format, &nitems, &bytes_left, &data);

                if (Success != res) 
                {
                        DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n"));
                        cliprdr_send_empty_datapacket();
                        return;
                }

                if (None == type_return) 
                        /* The owner might no support TARGETS. Just try
                           STRING */
                        best_target = XA_STRING;
                else 
                {
                        /* FIXME: We should choose format here based
                           on what the server wanted */
                        supported_targets = (Atom *)data;
                        for (i=0;i<nitems;i++) 
                        {
                                DEBUG_CLIPBOARD(("Target %d: %s\n", 
                                                 i, XGetAtomName(display,
                                                                 supported_targets[i])));
                        }
                        best_target = XInternAtom(display, "TEXT", False);
                        
                        
                }

                XConvertSelection(display, primary_atom, 
                                  best_target,
                                  rdesktop_clipboard_target_atom, 
                                  wnd, event->time);

        } 
        else  /* Other clipboard data */
        {
                
                res = XGetWindowProperty(display, wnd, 
                                         rdesktop_clipboard_target_atom,
                                         0L, 0x1FFFFFF, 
                                         True, AnyPropertyType, 
                                         &type_return,
                                         &format, &nitems, &bytes_left, &data);


                /* FIXME: We need to handle INCR as well, 
                 this is a temporary solution. */

                if (incr_atom == type_return) 
                {
                        warning("We don't support INCR transfers at this time. Try cutting less data\n");
                        cliprdr_send_empty_datapacket();
                }


                if (Success != res) 
                {
                        DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n"));
                        cliprdr_send_empty_datapacket();
                        return;
                }

                DEBUG_CLIPBOARD(("Received %d bytes of clipboard data from X, there is %d remaining\n",
                                 nitems, bytes_left));
                DEBUG_CLIPBOARD(("type_return is %s\n", 
                                 XGetAtomName(display, type_return)));

                datap = data;

                if (nitems+1 <= MAX_CLIPRDR_STANDALONE_DATASIZE) 
                {
                        out =  sec_init(encryption ? SEC_ENCRYPT : 0, 
                                        20+nitems+1);
                        out_uint32_le(out, 12+nitems+1);
                        out_uint32_le(out, 0x13);
                        out_uint16_le(out, 5);
                        out_uint16_le(out, 1);
                        out_uint32_le(out, nitems+1);
                        out_uint8p(out, datap, nitems+1);
                        out_uint32_le(out, 0);
                        s_mark_end(out);
        
                        sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, 
                                            clipboard_channelno); 

                } 
                else
                {
                        DEBUG_CLIPBOARD(("Sending %d bytes of data\n",
                                         16+MAX_CLIPRDR_STANDALONE_DATASIZE));
                        out =  sec_init(encryption ? SEC_ENCRYPT : 0, 
                                        16+MAX_CLIPRDR_STANDALONE_DATASIZE);
                        out_uint32_le(out, nitems+12);
                        out_uint32_le(out, 0x11);
                        out_uint16_le(out, 5);
                        out_uint16_le(out, 1);
                        out_uint32_le(out, nitems);
                        out_uint8p(out, datap, 
                                   MAX_CLIPRDR_STANDALONE_DATASIZE);
                        s_mark_end(out);
        
                        sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, 
                                            clipboard_channelno); 

                        bytes_left_to_transfer = nitems - MAX_CLIPRDR_STANDALONE_DATASIZE;
                        datap+=MAX_CLIPRDR_STANDALONE_DATASIZE;

                        while (bytes_left_to_transfer > MAX_CLIPRDR_STANDALONE_DATASIZE) 
                        {
                                DEBUG_CLIPBOARD(("Sending %d bytes of data\n",
                                         16+MAX_CLIPRDR_CONTINUATION_DATASIZE));
                                out =  sec_init(encryption ? SEC_ENCRYPT : 0, 
                                                8+MAX_CLIPRDR_CONTINUATION_DATASIZE);
                                out_uint32_le(out, nitems);
                                out_uint32_le(out, 0x10);
                                out_uint8p(out, datap, 
                                           MAX_CLIPRDR_CONTINUATION_DATASIZE);
                                s_mark_end(out);

                                sec_send_to_channel(out, 
                                                    encryption ? SEC_ENCRYPT : 0, 
                                                    clipboard_channelno);
                                bytes_left_to_transfer-= MAX_CLIPRDR_CONTINUATION_DATASIZE;
                                datap+=MAX_CLIPRDR_CONTINUATION_DATASIZE;
                                
                        }
                        DEBUG_CLIPBOARD(("Sending %d bytes of data\n", 
                                         12+bytes_left_to_transfer));
                        out =  sec_init(encryption ? SEC_ENCRYPT : 0, 
                                        12+bytes_left_to_transfer);
                        out_uint32_le(out, nitems);
                        out_uint32_le(out, 0x12);
                        out_uint8p(out, datap, 
                                   bytes_left_to_transfer);
                        out_uint32_le(out, 0x0);
                        s_mark_end(out);
        
                        sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0, 
                                            clipboard_channelno); 

                }


                XFree(data);
                cliprdr_send_format_announce();
                
        }
        
        
}

void
cliprdr_handle_SelectionClear(void)
{
        DEBUG_CLIPBOARD(("cliprdr_handle_SelectionClear\n"));
        cliprdr_send_format_announce();
}


static void
cliprdr_request_clipboard_data(uint32 formatcode) 
{
        STREAM s;
        s = sec_init(encryption ? SEC_ENCRYPT : 0, 24);
        out_uint32_le(s, 16);
        out_uint32_le(s, 0x13);
        out_uint16_le(s, 4);
        out_uint16_le(s, 0);
        out_uint32_le(s, 4); // Remaining length
        out_uint32_le(s, formatcode);
        out_uint32_le(s, 0); // Unknown. Garbage pad?

        s_mark_end(s);

        sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, 
                            clipboard_channelno); 
}


void
cliprdr_handle_SelectionRequest(XSelectionRequestEvent *xevent) 
{

        XSelectionEvent xev;
        DEBUG_CLIPBOARD(("cliprdr_handle_SelectionRequest\n"));
        DEBUG_CLIPBOARD(("Requestor window id 0x%x ", 
                         (unsigned)xevent->requestor));
        if (clipboard_atom == xevent->selection) {
                DEBUG_CLIPBOARD(("wants CLIPBOARD\n"));
        } 
        if (primary_atom == xevent->selection) {
                DEBUG_CLIPBOARD(("wants PRIMARY\n"));
        }  
        DEBUG_CLIPBOARD(("Target is %s (0x%x), property is %s (0x%x)\n", 
                         XGetAtomName(display, xevent->target), 
                         (unsigned)xevent->target, 
                         XGetAtomName(display, xevent->property), 
                         (unsigned)xevent->property));

        xev.type = SelectionNotify;
        xev.serial = 0;
        xev.send_event = True;
        xev.requestor = xevent->requestor;
        xev.selection = xevent->selection;
        xev.target = xevent->target;
        xev.property = xevent->property;
        xev.time = xevent->time;

        if (targets_atom == xevent->target) 
        {
                DEBUG_CLIPBOARD(("TARGETS requested, sending list..\n"));
                XChangeProperty(display, 
                                xevent->requestor,
                                xevent->property,
                                XA_ATOM,
                                32,
                                PropModeAppend,
                                (unsigned char *)&targets,
                                NUM_TARGETS);

                XSendEvent(display, 
                           xevent->requestor, 
                           False, 
                           NoEventMask,
                           (XEvent *)&xev);
                return;
        } else if (timestamp_atom == xevent->target) 
        {
                XChangeProperty(display, 
                                xevent->requestor,
                                xevent->property,
                                XA_INTEGER,
                                32,
                                PropModeAppend,
                                (unsigned char *)&last_gesturetime,
                                1);
                XSendEvent(display, 
                           xevent->requestor, 
                           False, 
                           NoEventMask,
                           (XEvent *)&xev);
        } else /* Some other target */
        {
                cliprdr_request_clipboard_data(CF_TEXT);
                memcpy(&selection_event, &xev, sizeof(xev));
                /* Return and wait for data, handled by 
                   cliprdr_handle_server_data */
        }
}


static void 
cliprdr_ack_format_list(void) 
{
        STREAM s;
        s = sec_init(encryption ? SEC_ENCRYPT : 0, 20);
        out_uint32_le(s, 12);
        out_uint32_le(s, 0x13);
        out_uint16_le(s, 3);
        out_uint16_le(s, 1);
        out_uint32_le(s, 0);
        out_uint32_le(s, 0x0000c0da);

        s_mark_end(s);

        sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0, 
                            clipboard_channelno); 
}

                
static void
cliprdr_register_server_formats(STREAM s) 
{
        uint32 remaining_length, pad;
        uint16 num_formats;
        cliprdr_dataformat *this, *next;

        DEBUG_CLIPBOARD(("cliprdr_register_server_formats\n"));
        in_uint32_le(s, remaining_length);

        num_formats = remaining_length / 36;
        if (NULL != server_formats) {
                this = server_formats;
                next = this->next;
                while (NULL != next) {
                        xfree(this);
                        this = NULL;
                        this = next;
                        next = this->next;
                }
        } 
        this = xmalloc(sizeof(cliprdr_dataformat));
        this->next = NULL;
        server_formats = this;
        num_server_formats = num_formats;
        while (1 < num_formats) {
                in_uint32_le(s, this->identifier);
                in_uint8a(s, this->textual_description, 32);
                DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", 
                                 this->identifier));
                this-> next = xmalloc(sizeof(cliprdr_dataformat));
                this = this->next;
                num_formats--;
        }
        in_uint32_le(s, this->identifier);
        DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", this->identifier));
        in_uint8a(s, this->textual_description, 32);
        this -> next = NULL;
        in_uint32_le(s, pad);
        cliprdr_print_server_formats();
}

static void
cliprdr_select_X_clipboards(void) 
{
        XSetSelectionOwner(display, primary_atom, wnd, last_gesturetime);
        if (wnd != XGetSelectionOwner(display, primary_atom))
        {
                warning("Failed to aquire ownership of PRIMARY clipboard\n");
        }
        XSetSelectionOwner(display, clipboard_atom, wnd, last_gesturetime);
        if (wnd != XGetSelectionOwner(display, clipboard_atom)) 
        {
                warning("Failed to aquire ownership of CLIPBOARD clipboard\n");
        }               
        
}

        
static void 
cliprdr_handle_first_handshake(STREAM s)
{
        uint32 remaining_length, pad;
        in_uint32_le(s, remaining_length);
        in_uint32_le(s, pad);
        DEBUG_CLIPBOARD(("Remaining length in first handshake frm server is %d, pad is %d\n", 
                         remaining_length, pad));
        cliprdr_send_format_announce();
}

void cliprdr_handle_server_data(uint32 length, uint32 flags, STREAM s) 
{
        static uint32 remaining_length;
        static char *data, *datap;
        static uint32 bytes_left_to_read;
        DEBUG_CLIPBOARD(("In cliprdr_handle_server_data, flags is %d\n", 
                         flags));
        if (3 == flags)  /* One-op write, no packets follows */
        {
                in_uint32_le(s, remaining_length);
                data = s->p;
        } else if (1 == flags) /* First of several packets */
        {       
                in_uint32_le(s, remaining_length);
                DEBUG_CLIPBOARD(("Remaining length is %d\n", 
                                 remaining_length));
                data = xmalloc(remaining_length);
                datap = data;
                DEBUG_CLIPBOARD(("Copying first %d bytes\n", 
                                 MAX_CLIPRDR_STANDALONE_DATASIZE));
                memcpy(datap, s->p, MAX_CLIPRDR_STANDALONE_DATASIZE);

                datap+=MAX_CLIPRDR_STANDALONE_DATASIZE;
                bytes_left_to_read = remaining_length-MAX_CLIPRDR_STANDALONE_DATASIZE;
                return;
        } else if (0 == flags) 
        {
                DEBUG_CLIPBOARD(("Copying %d middle bytes",
                                 MAX_CLIPRDR_CONTINUATION_DATASIZE));
                memcpy(datap, s->p, MAX_CLIPRDR_CONTINUATION_DATASIZE);

                datap+=MAX_CLIPRDR_CONTINUATION_DATASIZE;
                bytes_left_to_read-=MAX_CLIPRDR_CONTINUATION_DATASIZE;
                return;
        } else if (2 == flags)
        {
                DEBUG_CLIPBOARD(("Copying last %d bytes\n", 
                                 bytes_left_to_read));
                memcpy(datap, s->p, bytes_left_to_read);
        }
        XChangeProperty(display, 
                        selection_event.requestor,
                        selection_event.property,
                        XInternAtom(display, "STRING", False),
                        8,
                        PropModeAppend,
                        data,
                        remaining_length-1);

        XSendEvent(display, 
                   selection_event.requestor, 
                   False, 
                   NoEventMask,
                   (XEvent *)&selection_event);

        if (flags & 0x12)
                xfree(data);

}

void cliprdr_handle_server_data_request(STREAM s) 
{
        Window selectionowner;
        uint32 remaining_length;
        uint32 wanted_formatcode, pad;

        in_uint32_le(s, remaining_length);
        in_uint32_le(s, wanted_formatcode);
        in_uint32_le(s, pad);

        /* FIXME: Check that we support this formatcode */

        DEBUG_CLIPBOARD(("Request from server for format %d\n", 
                         wanted_formatcode));

        selectionowner = XGetSelectionOwner(display, primary_atom);

        if (None != selectionowner) 
        {
        
                /* FIXME: Perhaps we should check if we are the owner? */

                XConvertSelection(display, primary_atom, 
                                  targets_atom,
                                  rdesktop_clipboard_target_atom, 
                                  wnd, CurrentTime);

                /* The rest of the transfer is handled in 
                   cliprdr_handle_SelectionNotify */

        } else 
        {
                DEBUG_CLIPBOARD(("There were no owner for PRIMARY, sending empty string\n")); // FIXME: Should we always send an empty string?

                cliprdr_send_empty_datapacket();
        }


}
        

void cliprdr_callback(STREAM s, uint16 channelno) 
{
        static int failed_clipboard_acks = 0;
        struct timeval timeval;
        uint32 length, flags;
        uint16 ptype0, ptype1;
        clipboard_channelno = channelno;
        DEBUG_CLIPBOARD(("cliprdr_callback called with channelno %d, clipboard data:\n", channelno));
#ifdef WITH_DEBUG_CLIPBOARD
        //      hexdump(s->p, s->end - s->p);
#endif
        in_uint32_le(s, length);
        in_uint32_le(s, flags);

        DEBUG_CLIPBOARD(("length is %d, flags are %d\n", length, flags));

        if (3 == flags || 1 == flags) /* Single-write op or first-packet-of-several op */
        {
                in_uint16_le(s, ptype0);
                in_uint16_le(s, ptype1);
                DEBUG_CLIPBOARD(("ptype0 is %d, ptype1 is %d\n", ptype0, ptype1));
                if (1 == ptype0 && 0 == ptype1) {
                        cliprdr_handle_first_handshake(s);
                        return;
                } else if (3 == ptype0 && 1 == ptype1) 
                {
                        // Acknowledgment on our format announce. Do we care? Not right now.
                        // There is a strange pad in this packet that we might need some time,
                        // but probably not.
                        DEBUG_CLIPBOARD(("Received format announce ACK\n"));
                        failed_clipboard_acks = 0;
                        return;

                } else if (3 == ptype0 && 2 == ptype1) 
                {
                        DEBUG_CLIPBOARD(("Received failed clipboard format announce ACK, retrying\n"));

                        /* This is a fairly portable way to sleep 1/10 of
                           a second.. */
                        timeval.tv_sec = 0;
                        timeval.tv_usec = 100;
                        select(0, NULL, NULL, NULL, &timeval);
                        if (failed_clipboard_acks < 3)
                        {
                                
                                cliprdr_send_format_announce();
                                /* Make sure we don't get stuck in this loop */
                                failed_clipboard_acks++;
                        } 
                        else
                        {
                                warning("Reached maximum number of clipboard format announce attempts. Pasting in Windows probably won't work well now.\n");
                        }
                } else if (2 == ptype0 && 0 == ptype1) 
                {
                        cliprdr_register_server_formats(s);
                        cliprdr_select_X_clipboards();
                        cliprdr_ack_format_list();
                        return;
                } else if (5 == ptype0 && 1 == ptype1) 
                {
                        cliprdr_handle_server_data(length, flags, s);
                } else if (4 == ptype0 && 0 == ptype1) 
                {
                        cliprdr_handle_server_data_request(s);
                }

                
        } 
        else 
        {
                DEBUG_CLIPBOARD(("Handling middle or last packet\n"));
                cliprdr_handle_server_data(length, flags, s);
        }
}


void cliprdr_init(void) 
{
        primary_atom = XInternAtom(display, "PRIMARY", False);
        clipboard_atom = XInternAtom(display, "CLIPBOARD", False);
        targets_atom = XInternAtom(display, "TARGETS", False);
        timestamp_atom = XInternAtom(display, "TIMESTAMP", False);
        rdesktop_clipboard_target_atom = XInternAtom(display, "_RDESKTOP_CLIPBOARD_TARGET", False);
        incr_atom = XInternAtom(display, "INCR", False);
        targets[0] = targets_atom;
        targets[1] = XInternAtom(display, "TEXT", False);
        targets[2] = XInternAtom(display, "UTF8_STRING", False);
        targets[3] = XInternAtom(display, "text/unicode", False);
        targets[4] = XInternAtom(display, "TIMESTAMP", False);
        targets[5] = XInternAtom(display, "STRING", False);

}
1	forsberg	383	/* -- c-basic-offset: 8 --
2			rdesktop: A Remote Desktop Protocol client.
3			Protocol services - Clipboard functions
4			Copyright (C) Erik Forsberg <forsberg@cendio.se> 2003
5
6			This program is free software; you can redistribute it and/or modify
7			it under the terms of the GNU General Public License as published by
8			the Free Software Foundation; either version 2 of the License, or
9			(at your option) any later version.
10
11			This program is distributed in the hope that it will be useful,
12			but WITHOUT ANY WARRANTY; without even the implied warranty of
13			MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			GNU General Public License for more details.
15
16			You should have received a copy of the GNU General Public License
17			along with this program; if not, write to the Free Software
18			Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19			*/
20
21			#include <X11/Xlib.h>
22			#include <X11/Xatom.h>
23			#include "rdesktop.h"
24
25			extern BOOL encryption;
26			extern Display *display;
27			extern Window wnd;
28	forsberg	388	extern Time last_gesturetime;
29	forsberg	383
30	forsberg	388	// static Time selection_timestamp;
31	forsberg	383	static Atom clipboard_atom, primary_atom, targets_atom, timestamp_atom;
32	forsberg	391	static Atom rdesktop_clipboard_target_atom, incr_atom;
33	forsberg	383	static cliprdr_dataformat *server_formats = NULL;
34			static uint16 num_server_formats = 0;
35	forsberg	384	static XSelectionEvent selection_event;
36	forsberg	390	static uint16 clipboard_channelno;
37	forsberg	391	static Atom targets[NUM_TARGETS];
38	forsberg	383
39			static void
40			cliprdr_print_server_formats(void)
41			{
42			#ifdef WITH_DEBUG_CLIPBOARD
43			cliprdr_dataformat *this;
44			uint16 i = 0;
45			this = server_formats;
46			DEBUG_CLIPBOARD(("There should be %d server formats.\n", num_server_formats));
47			while (NULL != this)
48			{
49			DEBUG_CLIPBOARD(("Format code %d\n", this->identifier));
50			i++;
51			this = this->next;
52			}
53	forsberg	384	DEBUG_CLIPBOARD(("There were %d server formats.\n", i));
54	forsberg	383	#endif
55			}
56	forsberg	388	/*
57			static void
58			cliprdr_set_selection_timestamp(void)
59			{
60			XEvent xev;
61			DEBUG_CLIPBOARD(("Changing a property in order to get a timestamp\n"));
62			fflush(stdout);
63			XChangeProperty(display, wnd, rdesktop_clipboard_target_atom,
64			XA_ATOM, 32, PropModeAppend, 0, 0);
65			DEBUG_CLIPBOARD(("Waiting for PropertyChange on wnd\n"));
66			fflush(stdout);
67			XWindowEvent(display, wnd,
68			PropertyChangeMask, &xev);
69			DEBUG_CLIPBOARD(("Setting selection_timestamp\n"));
70			fflush(stdout);
71			selection_timestamp = xev.xproperty.time;
72			}
73			*/
74	forsberg	383
75	forsberg	386	static void
76	forsberg	387	cliprdr_send_format_announce(void)
77			{
78	forsberg	388	DEBUG_CLIPBOARD(("Sending format announce\n"));
79
80	forsberg	387	STREAM s;
81			int number_of_formats = 1;
82			s = sec_init(encryption ? SEC_ENCRYPT : 0, number_of_formats*36+12+4+4);
83			out_uint32_le(s, number_of_formats*36+12);
84			out_uint32_le(s, 0x13);
85			out_uint16_le(s, 2);
86			out_uint16_le(s, 0);
87			out_uint32_le(s, number_of_formats*36);
88
89			// out_uint32_le(s, 0xd); // FIXME: This is a rather bogus unicode text description..
90			// rdp_out_unistr(s, "", 16);
91			// out_uint8s(s, 32);
92
93
94			out_uint32_le(s, 1); // FIXME: This is a rather bogus text description..
95			out_uint8s(s, 32);
96
97			out_uint32_le(s, 0);
98
99			s_mark_end(s);
100	forsberg	390	sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0,
101			clipboard_channelno);
102	forsberg	387	}
103
104
105			static void
106	forsberg	386	cliprdr_send_empty_datapacket(void)
107			{
108			STREAM out;
109			out = sec_init(encryption ? SEC_ENCRYPT : 0,
110			20);
111			out_uint32_le(out, 12);
112			out_uint32_le(out, 0x13);
113			out_uint16_le(out, 5);
114			out_uint16_le(out, 1);
115			out_uint32_le(out, 0);
116			/* Insert null string here? */
117			out_uint32_le(out, 0);
118			s_mark_end(out);
119
120	forsberg	390	sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0,
121			clipboard_channelno);
122	forsberg	386	}
123
124
125	forsberg	383	void
126	forsberg	386	cliprdr_handle_SelectionNotify(XSelectionEvent *event)
127	forsberg	383	{
128	forsberg	386
129	forsberg	391	unsigned char data, datap;
130	forsberg	386	unsigned long nitems, bytes_left;
131	forsberg	391
132			unsigned long bytes_left_to_transfer;
133			int res, i;
134	forsberg	386
135			int format;
136			Atom type_return;
137			Atom best_target;
138	forsberg	391	Atom *supported_targets;
139	forsberg	386
140			STREAM out;
141
142	forsberg	383	DEBUG_CLIPBOARD(("cliprdr_handle_SelectionNotify\n"));
143	forsberg	386
144			if (None == event->property) {
145			cliprdr_send_empty_datapacket();
146			return; /* Selection failed */
147			}
148
149			DEBUG_CLIPBOARD(("selection: %s, target: %s, property: %s\n",
150			XGetAtomName(display, event->selection),
151			XGetAtomName(display, event->target),
152			XGetAtomName(display, event->property)));
153
154			if (targets_atom == event->target) {
155			/* Response to TARGETS request. Let's find the target
156			we want and request that */
157			res = XGetWindowProperty(display, wnd,
158			rdesktop_clipboard_target_atom,
159			0L, 4096L, False, AnyPropertyType,
160			&type_return,
161			&format, &nitems, &bytes_left, &data);
162
163			if (Success != res)
164			{
165			DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n"));
166			cliprdr_send_empty_datapacket();
167			return;
168			}
169
170			if (None == type_return)
171			/* The owner might no support TARGETS. Just try
172			STRING */
173			best_target = XA_STRING;
174			else
175			{
176			/* FIXME: We should choose format here based
177			on what the server wanted */
178	forsberg	391	supported_targets = (Atom *)data;
179			for (i=0;i<nitems;i++)
180			{
181			DEBUG_CLIPBOARD(("Target %d: %s\n",
182			i, XGetAtomName(display,
183			supported_targets[i])));
184			}
185	forsberg	386	best_target = XInternAtom(display, "TEXT", False);
186
187
188			}
189
190			XConvertSelection(display, primary_atom,
191			best_target,
192			rdesktop_clipboard_target_atom,
193			wnd, event->time);
194
195			}
196			else /* Other clipboard data */
197			{
198
199			res = XGetWindowProperty(display, wnd,
200			rdesktop_clipboard_target_atom,
201	forsberg	391	0L, 0x1FFFFFF,
202			True, AnyPropertyType,
203	forsberg	386	&type_return,
204			&format, &nitems, &bytes_left, &data);
205
206	forsberg	391
207			/* FIXME: We need to handle INCR as well,
208			this is a temporary solution. */
209
210			if (incr_atom == type_return)
211			{
212			warning("We don't support INCR transfers at this time. Try cutting less data\n");
213			cliprdr_send_empty_datapacket();
214			}
215
216
217	forsberg	386	if (Success != res)
218			{
219			DEBUG_CLIPBOARD(("XGetWindowProperty failed!\n"));
220			cliprdr_send_empty_datapacket();
221			return;
222			}
223
224	forsberg	391	DEBUG_CLIPBOARD(("Received %d bytes of clipboard data from X, there is %d remaining\n",
225			nitems, bytes_left));
226			DEBUG_CLIPBOARD(("type_return is %s\n",
227			XGetAtomName(display, type_return)));
228	forsberg	386
229	forsberg	391	datap = data;
230
231			if (nitems+1 <= MAX_CLIPRDR_STANDALONE_DATASIZE)
232			{
233			out = sec_init(encryption ? SEC_ENCRYPT : 0,
234			20+nitems+1);
235			out_uint32_le(out, 12+nitems+1);
236			out_uint32_le(out, 0x13);
237			out_uint16_le(out, 5);
238			out_uint16_le(out, 1);
239			out_uint32_le(out, nitems+1);
240			out_uint8p(out, datap, nitems+1);
241			out_uint32_le(out, 0);
242			s_mark_end(out);
243	forsberg	386
244	forsberg	391	sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0,
245			clipboard_channelno);
246	forsberg	388
247	forsberg	391	}
248			else
249			{
250			DEBUG_CLIPBOARD(("Sending %d bytes of data\n",
251			16+MAX_CLIPRDR_STANDALONE_DATASIZE));
252			out = sec_init(encryption ? SEC_ENCRYPT : 0,
253			16+MAX_CLIPRDR_STANDALONE_DATASIZE);
254			out_uint32_le(out, nitems+12);
255			out_uint32_le(out, 0x11);
256			out_uint16_le(out, 5);
257			out_uint16_le(out, 1);
258			out_uint32_le(out, nitems);
259			out_uint8p(out, datap,
260			MAX_CLIPRDR_STANDALONE_DATASIZE);
261			s_mark_end(out);
262
263			sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0,
264			clipboard_channelno);
265
266			bytes_left_to_transfer = nitems - MAX_CLIPRDR_STANDALONE_DATASIZE;
267			datap+=MAX_CLIPRDR_STANDALONE_DATASIZE;
268
269			while (bytes_left_to_transfer > MAX_CLIPRDR_STANDALONE_DATASIZE)
270			{
271			DEBUG_CLIPBOARD(("Sending %d bytes of data\n",
272			16+MAX_CLIPRDR_CONTINUATION_DATASIZE));
273			out = sec_init(encryption ? SEC_ENCRYPT : 0,
274			8+MAX_CLIPRDR_CONTINUATION_DATASIZE);
275			out_uint32_le(out, nitems);
276			out_uint32_le(out, 0x10);
277			out_uint8p(out, datap,
278			MAX_CLIPRDR_CONTINUATION_DATASIZE);
279			s_mark_end(out);
280
281			sec_send_to_channel(out,
282			encryption ? SEC_ENCRYPT : 0,
283			clipboard_channelno);
284			bytes_left_to_transfer-= MAX_CLIPRDR_CONTINUATION_DATASIZE;
285			datap+=MAX_CLIPRDR_CONTINUATION_DATASIZE;
286
287			}
288			DEBUG_CLIPBOARD(("Sending %d bytes of data\n",
289			12+bytes_left_to_transfer));
290			out = sec_init(encryption ? SEC_ENCRYPT : 0,
291			12+bytes_left_to_transfer);
292			out_uint32_le(out, nitems);
293			out_uint32_le(out, 0x12);
294			out_uint8p(out, datap,
295			bytes_left_to_transfer);
296			out_uint32_le(out, 0x0);
297			s_mark_end(out);
298
299			sec_send_to_channel(out, encryption ? SEC_ENCRYPT : 0,
300			clipboard_channelno);
301
302			}
303
304
305			XFree(data);
306	forsberg	388	cliprdr_send_format_announce();
307	forsberg	386
308			}
309
310
311	forsberg	383	}
312
313			void
314			cliprdr_handle_SelectionClear(void)
315			{
316			DEBUG_CLIPBOARD(("cliprdr_handle_SelectionClear\n"));
317	forsberg	387	cliprdr_send_format_announce();
318	forsberg	383	}
319
320
321	forsberg	384	static void
322			cliprdr_request_clipboard_data(uint32 formatcode)
323			{
324			STREAM s;
325			s = sec_init(encryption ? SEC_ENCRYPT : 0, 24);
326			out_uint32_le(s, 16);
327			out_uint32_le(s, 0x13);
328			out_uint16_le(s, 4);
329			out_uint16_le(s, 0);
330			out_uint32_le(s, 4); // Remaining length
331			out_uint32_le(s, formatcode);
332			out_uint32_le(s, 0); // Unknown. Garbage pad?
333
334			s_mark_end(s);
335
336	forsberg	390	sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0,
337			clipboard_channelno);
338	forsberg	384	}
339
340
341	forsberg	383	void
342			cliprdr_handle_SelectionRequest(XSelectionRequestEvent *xevent)
343			{
344
345			XSelectionEvent xev;
346			DEBUG_CLIPBOARD(("cliprdr_handle_SelectionRequest\n"));
347	forsberg	384	DEBUG_CLIPBOARD(("Requestor window id 0x%x ",
348			(unsigned)xevent->requestor));
349	forsberg	383	if (clipboard_atom == xevent->selection) {
350			DEBUG_CLIPBOARD(("wants CLIPBOARD\n"));
351			}
352			if (primary_atom == xevent->selection) {
353			DEBUG_CLIPBOARD(("wants PRIMARY\n"));
354			}
355			DEBUG_CLIPBOARD(("Target is %s (0x%x), property is %s (0x%x)\n",
356			XGetAtomName(display, xevent->target),
357	forsberg	384	(unsigned)xevent->target,
358	forsberg	383	XGetAtomName(display, xevent->property),
359	forsberg	384	(unsigned)xevent->property));
360	forsberg	383
361			xev.type = SelectionNotify;
362			xev.serial = 0;
363			xev.send_event = True;
364			xev.requestor = xevent->requestor;
365			xev.selection = xevent->selection;
366			xev.target = xevent->target;
367			xev.property = xevent->property;
368			xev.time = xevent->time;
369
370			if (targets_atom == xevent->target)
371			{
372			DEBUG_CLIPBOARD(("TARGETS requested, sending list..\n"));
373	forsberg	391	XChangeProperty(display,
374			xevent->requestor,
375			xevent->property,
376			XA_ATOM,
377			32,
378			PropModeAppend,
379			(unsigned char *)&targets,
380			NUM_TARGETS);
381	forsberg	383
382	forsberg	391	XSendEvent(display,
383			xevent->requestor,
384			False,
385			NoEventMask,
386			(XEvent *)&xev);
387	forsberg	383	return;
388			} else if (timestamp_atom == xevent->target)
389			{
390	forsberg	391	XChangeProperty(display,
391			xevent->requestor,
392			xevent->property,
393			XA_INTEGER,
394			32,
395			PropModeAppend,
396			(unsigned char *)&last_gesturetime,
397			1);
398			XSendEvent(display,
399			xevent->requestor,
400			False,
401			NoEventMask,
402			(XEvent *)&xev);
403	forsberg	383	} else /* Some other target */
404			{
405	forsberg	384	cliprdr_request_clipboard_data(CF_TEXT);
406			memcpy(&selection_event, &xev, sizeof(xev));
407			/* Return and wait for data, handled by
408			cliprdr_handle_server_data */
409			}
410			}
411	forsberg	383
412
413	forsberg	384	static void
414			cliprdr_ack_format_list(void)
415			{
416			STREAM s;
417			s = sec_init(encryption ? SEC_ENCRYPT : 0, 20);
418			out_uint32_le(s, 12);
419			out_uint32_le(s, 0x13);
420			out_uint16_le(s, 3);
421			out_uint16_le(s, 1);
422			out_uint32_le(s, 0);
423			out_uint32_le(s, 0x0000c0da);
424
425			s_mark_end(s);
426
427	forsberg	390	sec_send_to_channel(s, encryption ? SEC_ENCRYPT : 0,
428			clipboard_channelno);
429	forsberg	383	}
430
431	forsberg	384
432	forsberg	383
433	forsberg	384
434
435	forsberg	383	static void
436			cliprdr_register_server_formats(STREAM s)
437			{
438			uint32 remaining_length, pad;
439			uint16 num_formats;
440			cliprdr_dataformat this, next;
441
442			DEBUG_CLIPBOARD(("cliprdr_register_server_formats\n"));
443			in_uint32_le(s, remaining_length);
444
445			num_formats = remaining_length / 36;
446			if (NULL != server_formats) {
447			this = server_formats;
448			next = this->next;
449			while (NULL != next) {
450			xfree(this);
451			this = NULL;
452			this = next;
453			next = this->next;
454			}
455			}
456			this = xmalloc(sizeof(cliprdr_dataformat));
457			this->next = NULL;
458			server_formats = this;
459			num_server_formats = num_formats;
460			while (1 < num_formats) {
461			in_uint32_le(s, this->identifier);
462			in_uint8a(s, this->textual_description, 32);
463	forsberg	384	DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n",
464			this->identifier));
465	forsberg	383	this-> next = xmalloc(sizeof(cliprdr_dataformat));
466			this = this->next;
467			num_formats--;
468			}
469			in_uint32_le(s, this->identifier);
470			DEBUG_CLIPBOARD(("Stored format description with numeric id %d\n", this->identifier));
471			in_uint8a(s, this->textual_description, 32);
472			this -> next = NULL;
473			in_uint32_le(s, pad);
474			cliprdr_print_server_formats();
475			}
476
477			static void
478			cliprdr_select_X_clipboards(void)
479			{
480	forsberg	388	XSetSelectionOwner(display, primary_atom, wnd, last_gesturetime);
481	forsberg	383	if (wnd != XGetSelectionOwner(display, primary_atom))
482			{
483			warning("Failed to aquire ownership of PRIMARY clipboard\n");
484			}
485	forsberg	388	XSetSelectionOwner(display, clipboard_atom, wnd, last_gesturetime);
486	forsberg	383	if (wnd != XGetSelectionOwner(display, clipboard_atom))
487			{
488			warning("Failed to aquire ownership of CLIPBOARD clipboard\n");
489			}
490
491			}
492
493	forsberg	384
494
495	forsberg	385
496
497	forsberg	383	static void
498			cliprdr_handle_first_handshake(STREAM s)
499			{
500			uint32 remaining_length, pad;
501			in_uint32_le(s, remaining_length);
502			in_uint32_le(s, pad);
503			DEBUG_CLIPBOARD(("Remaining length in first handshake frm server is %d, pad is %d\n",
504			remaining_length, pad));
505			cliprdr_send_format_announce();
506			}
507
508	forsberg	392	void cliprdr_handle_server_data(uint32 length, uint32 flags, STREAM s)
509	forsberg	384	{
510	forsberg	392	static uint32 remaining_length;
511			static char data, datap;
512			static uint32 bytes_left_to_read;
513			DEBUG_CLIPBOARD(("In cliprdr_handle_server_data, flags is %d\n",
514			flags));
515			if (3 == flags) /* One-op write, no packets follows */
516			{
517			in_uint32_le(s, remaining_length);
518			data = s->p;
519			} else if (1 == flags) /* First of several packets */
520			{
521			in_uint32_le(s, remaining_length);
522			DEBUG_CLIPBOARD(("Remaining length is %d\n",
523			remaining_length));
524			data = xmalloc(remaining_length);
525			datap = data;
526			DEBUG_CLIPBOARD(("Copying first %d bytes\n",
527			MAX_CLIPRDR_STANDALONE_DATASIZE));
528			memcpy(datap, s->p, MAX_CLIPRDR_STANDALONE_DATASIZE);
529
530			datap+=MAX_CLIPRDR_STANDALONE_DATASIZE;
531			bytes_left_to_read = remaining_length-MAX_CLIPRDR_STANDALONE_DATASIZE;
532			return;
533			} else if (0 == flags)
534			{
535			DEBUG_CLIPBOARD(("Copying %d middle bytes",
536			MAX_CLIPRDR_CONTINUATION_DATASIZE));
537			memcpy(datap, s->p, MAX_CLIPRDR_CONTINUATION_DATASIZE);
538
539			datap+=MAX_CLIPRDR_CONTINUATION_DATASIZE;
540			bytes_left_to_read-=MAX_CLIPRDR_CONTINUATION_DATASIZE;
541			return;
542			} else if (2 == flags)
543			{
544			DEBUG_CLIPBOARD(("Copying last %d bytes\n",
545			bytes_left_to_read));
546			memcpy(datap, s->p, bytes_left_to_read);
547			}
548	forsberg	388	XChangeProperty(display,
549			selection_event.requestor,
550			selection_event.property,
551			XInternAtom(display, "STRING", False),
552			8,
553			PropModeAppend,
554			data,
555	forsberg	392	remaining_length-1);
556	forsberg	384
557	forsberg	388	XSendEvent(display,
558			selection_event.requestor,
559			False,
560			NoEventMask,
561			(XEvent *)&selection_event);
562	forsberg	384
563	forsberg	392	if (flags & 0x12)
564			xfree(data);
565
566	forsberg	384	}
567
568	forsberg	385	void cliprdr_handle_server_data_request(STREAM s)
569			{
570	forsberg	386	Window selectionowner;
571	forsberg	385	uint32 remaining_length;
572			uint32 wanted_formatcode, pad;
573
574			in_uint32_le(s, remaining_length);
575			in_uint32_le(s, wanted_formatcode);
576			in_uint32_le(s, pad);
577
578			/* FIXME: Check that we support this formatcode */
579
580			DEBUG_CLIPBOARD(("Request from server for format %d\n",
581			wanted_formatcode));
582
583	forsberg	386	selectionowner = XGetSelectionOwner(display, primary_atom);
584	forsberg	385
585	forsberg	386	if (None != selectionowner)
586			{
587	forsberg	385
588	forsberg	386	/* FIXME: Perhaps we should check if we are the owner? */
589	forsberg	385
590	forsberg	386	XConvertSelection(display, primary_atom,
591			targets_atom,
592			rdesktop_clipboard_target_atom,
593			wnd, CurrentTime);
594
595			/* The rest of the transfer is handled in
596			cliprdr_handle_SelectionNotify */
597
598			} else
599	forsberg	385	{
600	forsberg	386	DEBUG_CLIPBOARD(("There were no owner for PRIMARY, sending empty string\n")); // FIXME: Should we always send an empty string?
601
602			cliprdr_send_empty_datapacket();
603	forsberg	385	}
604	forsberg	386
605
606	forsberg	385	}
607
608
609	forsberg	390	void cliprdr_callback(STREAM s, uint16 channelno)
610	forsberg	383	{
611	forsberg	389	static int failed_clipboard_acks = 0;
612			struct timeval timeval;
613	forsberg	383	uint32 length, flags;
614			uint16 ptype0, ptype1;
615	forsberg	390	clipboard_channelno = channelno;
616			DEBUG_CLIPBOARD(("cliprdr_callback called with channelno %d, clipboard data:\n", channelno));
617	forsberg	383	#ifdef WITH_DEBUG_CLIPBOARD
618	forsberg	392	// hexdump(s->p, s->end - s->p);
619	forsberg	383	#endif
620			in_uint32_le(s, length);
621			in_uint32_le(s, flags);
622
623			DEBUG_CLIPBOARD(("length is %d, flags are %d\n", length, flags));
624
625	forsberg	392	if (3 == flags \|\| 1 == flags) /* Single-write op or first-packet-of-several op */
626	forsberg	383	{
627			in_uint16_le(s, ptype0);
628			in_uint16_le(s, ptype1);
629			DEBUG_CLIPBOARD(("ptype0 is %d, ptype1 is %d\n", ptype0, ptype1));
630			if (1 == ptype0 && 0 == ptype1) {
631			cliprdr_handle_first_handshake(s);
632			return;
633			} else if (3 == ptype0 && 1 == ptype1)
634			{
635			// Acknowledgment on our format announce. Do we care? Not right now.
636			// There is a strange pad in this packet that we might need some time,
637			// but probably not.
638			DEBUG_CLIPBOARD(("Received format announce ACK\n"));
639	forsberg	389	failed_clipboard_acks = 0;
640	forsberg	383	return;
641	forsberg	384
642	forsberg	389	} else if (3 == ptype0 && 2 == ptype1)
643			{
644			DEBUG_CLIPBOARD(("Received failed clipboard format announce ACK, retrying\n"));
645
646			/* This is a fairly portable way to sleep 1/10 of
647			a second.. */
648			timeval.tv_sec = 0;
649			timeval.tv_usec = 100;
650			select(0, NULL, NULL, NULL, &timeval);
651			if (failed_clipboard_acks < 3)
652			{
653
654			cliprdr_send_format_announce();
655			/* Make sure we don't get stuck in this loop */
656			failed_clipboard_acks++;
657			}
658			else
659			{
660			warning("Reached maximum number of clipboard format announce attempts. Pasting in Windows probably won't work well now.\n");
661			}
662	forsberg	383	} else if (2 == ptype0 && 0 == ptype1)
663			{
664			cliprdr_register_server_formats(s);
665			cliprdr_select_X_clipboards();
666	forsberg	384	cliprdr_ack_format_list();
667	forsberg	383	return;
668	forsberg	384	} else if (5 == ptype0 && 1 == ptype1)
669			{
670	forsberg	392	cliprdr_handle_server_data(length, flags, s);
671	forsberg	385	} else if (4 == ptype0 && 0 == ptype1)
672			{
673			cliprdr_handle_server_data_request(s);
674	forsberg	383	}
675	forsberg	385
676	forsberg	383
677	forsberg	392	}
678			else
679			{
680			DEBUG_CLIPBOARD(("Handling middle or last packet\n"));
681			cliprdr_handle_server_data(length, flags, s);
682	forsberg	383	}
683			}
684
685	forsberg	384
686	forsberg	383	void cliprdr_init(void)
687			{
688			primary_atom = XInternAtom(display, "PRIMARY", False);
689			clipboard_atom = XInternAtom(display, "CLIPBOARD", False);
690	forsberg	386	targets_atom = XInternAtom(display, "TARGETS", False);
691			timestamp_atom = XInternAtom(display, "TIMESTAMP", False);
692			rdesktop_clipboard_target_atom = XInternAtom(display, "_RDESKTOP_CLIPBOARD_TARGET", False);
693	forsberg	391	incr_atom = XInternAtom(display, "INCR", False);
694			targets[0] = targets_atom;
695			targets[1] = XInternAtom(display, "TEXT", False);
696			targets[2] = XInternAtom(display, "UTF8_STRING", False);
697			targets[3] = XInternAtom(display, "text/unicode", False);
698			targets[4] = XInternAtom(display, "TIMESTAMP", False);
699			targets[5] = XInternAtom(display, "STRING", False);
700
701	forsberg	383	}