[Spice-devel] [PATCH vdagent 1/2] vdagent-x11: remove clipboard handling

Victor Toso victortoso at redhat.com
Mon Feb 12 09:40:20 UTC 2018


Hi,

Follow up after the comment in the cover letter.

On Sun, Jan 21, 2018 at 09:03:13PM +0100, Jakub Janků wrote:
> From: Jakub Janků <jjanku at redhat.com>
> 
> The code will be replaced by GTK+ in the following patch.
> ---
>  src/vdagent/vdagent.c  |    7 -
>  src/vdagent/x11-priv.h |   91 ----
>  src/vdagent/x11.c      | 1074 +-----------------------------------------------
>  src/vdagent/x11.h      |   10 -
>  4 files changed, 1 insertion(+), 1181 deletions(-)
> 
> diff --git a/src/vdagent/vdagent.c b/src/vdagent/vdagent.c
> index d86ee25..92ffcf3 100644
> --- a/src/vdagent/vdagent.c
> +++ b/src/vdagent/vdagent.c
> @@ -164,18 +164,12 @@ static void daemon_read_complete(struct udscs_connection **connp,
>          vdagent_x11_set_monitor_config(agent->x11, (VDAgentMonitorsConfig *)data, 0);
>          break;
>      case VDAGENTD_CLIPBOARD_REQUEST:
> -        vdagent_x11_clipboard_request(agent->x11, header->arg1, header->arg2);
>          break;
>      case VDAGENTD_CLIPBOARD_GRAB:
> -        vdagent_x11_clipboard_grab(agent->x11, header->arg1, (uint32_t *)data,
> -                                   header->size / sizeof(uint32_t));
>          break;
>      case VDAGENTD_CLIPBOARD_DATA:
> -        vdagent_x11_clipboard_data(agent->x11, header->arg1, header->arg2,
> -                                   data, header->size);
>          break;
>      case VDAGENTD_CLIPBOARD_RELEASE:
> -        vdagent_x11_clipboard_release(agent->x11, header->arg1);
>          break;
>      case VDAGENTD_VERSION:
>          if (strcmp((char *)data, VERSION) != 0) {
> @@ -228,7 +222,6 @@ static void daemon_read_complete(struct udscs_connection **connp,
>          }
>          break;
>      case VDAGENTD_CLIENT_DISCONNECTED:
> -        vdagent_x11_client_disconnected(agent->x11);

So, instead of removing the vdagent_x11 calls, you could
introduce the clipboard.[ch] and use the renamed calls here that
will call the x11 code for now.

Reviewed-by: Victor Toso <victortoso at redhat.com>

        toso

>          if (vdagent_finalize_file_xfer(agent)) {
>              vdagent_init_file_xfer(agent);
>          }
> diff --git a/src/vdagent/x11-priv.h b/src/vdagent/x11-priv.h
> index 3776098..627e0ed 100644
> --- a/src/vdagent/x11-priv.h
> +++ b/src/vdagent/x11-priv.h
> @@ -1,118 +1,27 @@
>  #ifndef VDAGENT_X11_PRIV
>  #define VDAGENT_X11_PRIV
>  
> -#include <stdint.h>
> -#include <stdio.h>
> -
> -#include <spice/vd_agent.h>
> -
>  #include <X11/extensions/Xrandr.h>
>  
> -/* Macros to print a message to the logfile prefixed by the selection */
> -#define SELPRINTF(format, ...) \
> -    syslog(LOG_ERR, "%s: " format, \
> -            vdagent_x11_sel_to_str(selection), ##__VA_ARGS__)
> -
> -#define VSELPRINTF(format, ...) \
> -    do { \
> -        if (x11->debug) { \
> -            syslog(LOG_DEBUG, "%s: " format, \
> -                    vdagent_x11_sel_to_str(selection), ##__VA_ARGS__); \
> -        } \
> -    } while (0)
> -
>  #define MAX_SCREENS 16
>  /* Same as qxl_dev.h client_monitors_config.heads count */
>  #define MONITOR_SIZE_COUNT 64
>  
> -enum { owner_none, owner_guest, owner_client };
> -
> -/* X11 terminology is confusing a selection request is a request from an
> -   app to get clipboard data from us, so iow from the spice client through
> -   the vdagent channel. We handle these one at a time and queue any which
> -   come in while we are still handling the current one. */
> -struct vdagent_x11_selection_request {
> -    XEvent event;
> -    uint8_t selection;
> -    struct vdagent_x11_selection_request *next;
> -};
> -
> -/* A conversion request is X11 speak for asking another app to give its
> -   clipboard data to us, we do these on behalf of the spice client to copy
> -   data from the guest to the client. Like selection requests we process
> -   these one at a time. */
> -struct vdagent_x11_conversion_request {
> -    Atom target;
> -    uint8_t selection;
> -    struct vdagent_x11_conversion_request *next;
> -};
> -
> -struct clipboard_format_tmpl {
> -    uint32_t type;
> -    const char *atom_names[16];
> -};
> -
> -struct clipboard_format_info {
> -    uint32_t type;
> -    Atom atoms[16];
> -    int atom_count;
> -};
> -
>  struct monitor_size {
>      int width;
>      int height;
>  };
>  
> -static const struct clipboard_format_tmpl clipboard_format_templates[] = {
> -    { VD_AGENT_CLIPBOARD_UTF8_TEXT, { "UTF8_STRING", "text/plain;charset=UTF-8",
> -      "text/plain;charset=utf-8", "STRING", NULL }, },
> -    { VD_AGENT_CLIPBOARD_IMAGE_PNG, { "image/png", NULL }, },
> -    { VD_AGENT_CLIPBOARD_IMAGE_BMP, { "image/bmp", "image/x-bmp",
> -      "image/x-MS-bmp", "image/x-win-bitmap", NULL }, },
> -    { VD_AGENT_CLIPBOARD_IMAGE_TIFF, { "image/tiff", NULL }, },
> -    { VD_AGENT_CLIPBOARD_IMAGE_JPG, { "image/jpeg", NULL }, },
> -};
> -
> -#define clipboard_format_count (sizeof(clipboard_format_templates)/sizeof(clipboard_format_templates[0]))
> -
>  struct vdagent_x11 {
> -    struct clipboard_format_info clipboard_formats[clipboard_format_count];
>      Display *display;
> -    Atom clipboard_atom;
> -    Atom clipboard_primary_atom;
> -    Atom targets_atom;
> -    Atom incr_atom;
> -    Atom multiple_atom;
> -    Atom timestamp_atom;
>      Window root_window[MAX_SCREENS];
> -    Window selection_window;
>      struct udscs_connection *vdagentd;
>      int debug;
>      int fd;
>      int screen_count;
>      int width[MAX_SCREENS];
>      int height[MAX_SCREENS];
> -    int has_xfixes;
> -    int xfixes_event_base;
>      int xrandr_event_base;
> -    int max_prop_size;
> -    int expected_targets_notifies[256];
> -    int clipboard_owner[256];
> -    int clipboard_type_count[256];
> -    uint32_t clipboard_agent_types[256][256];
> -    Atom clipboard_x11_targets[256][256];
> -    /* Data for conversion_req which is currently being processed */
> -    struct vdagent_x11_conversion_request *conversion_req;
> -    int expect_property_notify;
> -    uint8_t *clipboard_data;
> -    uint32_t clipboard_data_size;
> -    uint32_t clipboard_data_space;
> -    /* Data for selection_req which is currently being processed */
> -    struct vdagent_x11_selection_request *selection_req;
> -    uint8_t *selection_req_data;
> -    uint32_t selection_req_data_pos;
> -    uint32_t selection_req_data_size;
> -    Atom selection_req_atom;
>      /* resolution change state */
>      struct {
>          XRRScreenResources *res;
> diff --git a/src/vdagent/x11.c b/src/vdagent/x11.c
> index 9700847..738eaa4 100644
> --- a/src/vdagent/x11.c
> +++ b/src/vdagent/x11.c
> @@ -31,21 +31,14 @@
>     Calling XPending when-ever we return to the mainloop also ensures any
>     pending writes are flushed. */
>  
> -#include <glib.h>
>  #include <gdk/gdk.h>
>  #ifdef GDK_WINDOWING_X11
>  #include <gdk/gdkx.h>
>  #endif
>  #include <stdlib.h>
> -#include <limits.h>
>  #include <string.h>
>  #include <syslog.h>
> -#include <assert.h>
> -#include <unistd.h>
> -#include <X11/Xatom.h>
>  #include <X11/Xlib.h>
> -#include <X11/extensions/Xfixes.h>
> -#include "vdagentd-proto.h"
>  #include "x11.h"
>  #include "x11-priv.h"
>  
> @@ -53,48 +46,12 @@
>  int (*vdagent_x11_prev_error_handler)(Display *, XErrorEvent *);
>  int vdagent_x11_caught_error;
>  
> -static void vdagent_x11_handle_selection_notify(struct vdagent_x11 *x11,
> -                                                XEvent *event, int incr);
> -static void vdagent_x11_handle_selection_request(struct vdagent_x11 *x11);
> -static void vdagent_x11_handle_targets_notify(struct vdagent_x11 *x11,
> -                                              XEvent *event);
> -static void vdagent_x11_handle_property_delete_notify(struct vdagent_x11 *x11,
> -                                                      XEvent *del_event);
> -static void vdagent_x11_send_selection_notify(struct vdagent_x11 *x11,
> -                Atom prop, struct vdagent_x11_selection_request *request);
> -static void vdagent_x11_set_clipboard_owner(struct vdagent_x11 *x11,
> -                                            uint8_t selection, int new_owner);
> -
> -static const char *vdagent_x11_sel_to_str(uint8_t selection) {
> -    switch (selection) {
> -    case VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD:
> -        return "clipboard";
> -    case VD_AGENT_CLIPBOARD_SELECTION_PRIMARY:
> -        return "primary";
> -    case VD_AGENT_CLIPBOARD_SELECTION_SECONDARY:
> -        return "secondary";
> -    default:
> -        return "unknown";
> -    }
> -}
> -
>  static int vdagent_x11_debug_error_handler(
>      Display *display, XErrorEvent *error)
>  {
>      abort();
>  }
>  
> -/* With the clipboard we're sometimes dealing with Properties on another apps
> -   Window. which can go away at any time. */
> -static int vdagent_x11_ignore_bad_window_handler(
> -    Display *display, XErrorEvent *error)
> -{
> -    if (error->error_code == BadWindow)
> -        return 0;
> -
> -    return vdagent_x11_prev_error_handler(display, error);
> -}
> -
>  void vdagent_x11_set_error_handler(struct vdagent_x11 *x11,
>      int (*handler)(Display *, XErrorEvent *))
>  {
> @@ -131,7 +88,7 @@ struct vdagent_x11 *vdagent_x11_create(struct udscs_connection *vdagentd,
>  {
>      struct vdagent_x11 *x11;
>      XWindowAttributes attrib;
> -    int i, j, major, minor;
> +    int i;
>      const gchar *net_wm_name;
>  
>      x11 = calloc(1, sizeof(*x11));
> @@ -167,57 +124,9 @@ struct vdagent_x11 *vdagent_x11_create(struct udscs_connection *vdagentd,
>      for (i = 0; i < x11->screen_count; i++)
>          x11->root_window[i] = RootWindow(x11->display, i);
>      x11->fd = ConnectionNumber(x11->display);
> -    x11->clipboard_atom = XInternAtom(x11->display, "CLIPBOARD", False);
> -    x11->clipboard_primary_atom = XInternAtom(x11->display, "PRIMARY", False);
> -    x11->targets_atom = XInternAtom(x11->display, "TARGETS", False);
> -    x11->incr_atom = XInternAtom(x11->display, "INCR", False);
> -    x11->multiple_atom = XInternAtom(x11->display, "MULTIPLE", False);
> -    x11->timestamp_atom = XInternAtom(x11->display, "TIMESTAMP", False);
> -    for(i = 0; i < clipboard_format_count; i++) {
> -        x11->clipboard_formats[i].type = clipboard_format_templates[i].type;
> -        for(j = 0; clipboard_format_templates[i].atom_names[j]; j++) {
> -            x11->clipboard_formats[i].atoms[j] =
> -                XInternAtom(x11->display,
> -                            clipboard_format_templates[i].atom_names[j],
> -                            False);
> -        }
> -        x11->clipboard_formats[i].atom_count = j;
> -    }
> -
> -    /* We should not store properties (for selections) on the root window */
> -    x11->selection_window = XCreateSimpleWindow(x11->display, x11->root_window[0],
> -                                                0, 0, 1, 1, 0, 0, 0);
> -    if (x11->debug)
> -        syslog(LOG_DEBUG, "Selection window: %u", (int)x11->selection_window);
>  
>      vdagent_x11_randr_init(x11);
>  
> -    if (XFixesQueryExtension(x11->display, &x11->xfixes_event_base, &i) &&
> -        XFixesQueryVersion(x11->display, &major, &minor) && major >= 1) {
> -        x11->has_xfixes = 1;
> -        XFixesSelectSelectionInput(x11->display, x11->root_window[0],
> -                                   x11->clipboard_atom,
> -                                   XFixesSetSelectionOwnerNotifyMask|
> -                                   XFixesSelectionWindowDestroyNotifyMask|
> -                                   XFixesSelectionClientCloseNotifyMask);
> -        XFixesSelectSelectionInput(x11->display, x11->root_window[0],
> -                                   x11->clipboard_primary_atom,
> -                                   XFixesSetSelectionOwnerNotifyMask|
> -                                   XFixesSelectionWindowDestroyNotifyMask|
> -                                   XFixesSelectionClientCloseNotifyMask);
> -    } else
> -        syslog(LOG_ERR, "no xfixes, no guest -> client copy paste support");
> -
> -    x11->max_prop_size = XExtendedMaxRequestSize(x11->display);
> -    if (x11->max_prop_size) {
> -        x11->max_prop_size -= 100;
> -    } else {
> -        x11->max_prop_size = XMaxRequestSize(x11->display) - 100;
> -    }
> -    /* Be a good X11 citizen and maximize the amount of data we send at once */
> -    if (x11->max_prop_size > 262144)
> -        x11->max_prop_size = 262144;
> -
>      for (i = 0; i < x11->screen_count; i++) {
>          /* Catch resolution changes */
>          XSelectInput(x11->display, x11->root_window[i], StructureNotifyMask);
> @@ -249,18 +158,12 @@ struct vdagent_x11 *vdagent_x11_create(struct udscs_connection *vdagentd,
>  
>  void vdagent_x11_destroy(struct vdagent_x11 *x11, int vdagentd_disconnected)
>  {
> -    uint8_t sel;
> -
>      if (!x11)
>          return;
>  
>      if (vdagentd_disconnected)
>          x11->vdagentd = NULL;
>  
> -    for (sel = 0; sel < VD_AGENT_CLIPBOARD_SELECTION_SECONDARY; ++sel) {
> -        vdagent_x11_set_clipboard_owner(x11, sel, owner_none);
> -    }
> -
>      XCloseDisplay(x11->display);
>      free(x11->randr.failed_conf);
>      free(x11);
> @@ -271,190 +174,9 @@ int vdagent_x11_get_fd(struct vdagent_x11 *x11)
>      return x11->fd;
>  }
>  
> -static void vdagent_x11_next_selection_request(struct vdagent_x11 *x11)
> -{
> -    struct vdagent_x11_selection_request *selection_request;
> -    selection_request = x11->selection_req;
> -    x11->selection_req = selection_request->next;
> -    free(selection_request);
> -}
> -
> -static void vdagent_x11_next_conversion_request(struct vdagent_x11 *x11)
> -{
> -    struct vdagent_x11_conversion_request *conversion_req;
> -    conversion_req = x11->conversion_req;
> -    x11->conversion_req = conversion_req->next;
> -    free(conversion_req);
> -}
> -
> -static void vdagent_x11_set_clipboard_owner(struct vdagent_x11 *x11,
> -    uint8_t selection, int new_owner)
> -{
> -    struct vdagent_x11_selection_request *prev_sel, *curr_sel, *next_sel;
> -    struct vdagent_x11_conversion_request *prev_conv, *curr_conv, *next_conv;
> -    int once;
> -
> -    /* Clear pending requests and clipboard data */
> -    once = 1;
> -    prev_sel = NULL;
> -    next_sel = x11->selection_req;
> -    while (next_sel) {
> -        curr_sel = next_sel;
> -        next_sel = curr_sel->next;
> -        if (curr_sel->selection == selection) {
> -            if (once) {
> -                SELPRINTF("selection requests pending on clipboard ownership "
> -                          "change, clearing");
> -                once = 0;
> -            }
> -            vdagent_x11_send_selection_notify(x11, None, curr_sel);
> -            if (curr_sel == x11->selection_req) {
> -                x11->selection_req = next_sel;
> -                free(x11->selection_req_data);
> -                x11->selection_req_data = NULL;
> -                x11->selection_req_data_pos = 0;
> -                x11->selection_req_data_size = 0;
> -                x11->selection_req_atom = None;
> -            } else {
> -                prev_sel->next = next_sel;
> -            }
> -            free(curr_sel);
> -        } else {
> -            prev_sel = curr_sel;
> -        }
> -    }
> -
> -    once = 1;
> -    prev_conv = NULL;
> -    next_conv = x11->conversion_req;
> -    while (next_conv) {
> -        curr_conv = next_conv;
> -        next_conv = curr_conv->next;
> -        if (curr_conv->selection == selection) {
> -            if (once) {
> -                SELPRINTF("client clipboard request pending on clipboard "
> -                          "ownership change, clearing");
> -                once = 0;
> -            }
> -            if (x11->vdagentd)
> -                udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_DATA, selection,
> -                            VD_AGENT_CLIPBOARD_NONE, NULL, 0);
> -            if (curr_conv == x11->conversion_req) {
> -                x11->conversion_req = next_conv;
> -                x11->clipboard_data_size = 0;
> -                x11->expect_property_notify = 0;
> -            } else {
> -                prev_conv->next = next_conv;
> -            }
> -            free(curr_conv);
> -        } else {
> -            prev_conv = curr_conv;
> -        }
> -    }
> -
> -    if (new_owner == owner_none) {
> -        /* When going from owner_guest to owner_none we need to send a
> -           clipboard release message to the client */
> -        if (x11->clipboard_owner[selection] == owner_guest && x11->vdagentd) {
> -            udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_RELEASE, selection,
> -                        0, NULL, 0);
> -        }
> -        x11->clipboard_type_count[selection] = 0;
> -    }
> -    x11->clipboard_owner[selection] = new_owner;
> -}
> -
> -static int vdagent_x11_get_clipboard_atom(struct vdagent_x11 *x11, uint8_t selection, Atom* clipboard)
> -{
> -    if (selection == VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD) {
> -        *clipboard = x11->clipboard_atom;
> -    } else if (selection == VD_AGENT_CLIPBOARD_SELECTION_PRIMARY) {
> -        *clipboard = x11->clipboard_primary_atom;
> -    } else {
> -        syslog(LOG_ERR, "get_clipboard_atom: unknown selection");
> -        return -1;
> -    }
> -
> -    return 0;
> -}
> -
> -static int vdagent_x11_get_clipboard_selection(struct vdagent_x11 *x11,
> -    XEvent *event, uint8_t *selection)
> -{
> -    Atom atom;
> -
> -    if (event->type == x11->xfixes_event_base) {
> -        XFixesSelectionNotifyEvent *xfev = (XFixesSelectionNotifyEvent *)event;
> -        atom = xfev->selection;
> -    } else if (event->type == SelectionNotify) {
> -        atom = event->xselection.selection;
> -    } else if (event->type == SelectionRequest) {
> -        atom = event->xselectionrequest.selection;
> -    } else {
> -        syslog(LOG_ERR, "get_clipboard_selection: unknown event type");
> -        return -1;
> -    }
> -
> -    if (atom == x11->clipboard_atom) {
> -        *selection = VD_AGENT_CLIPBOARD_SELECTION_CLIPBOARD;
> -    } else if (atom == x11->clipboard_primary_atom) {
> -        *selection = VD_AGENT_CLIPBOARD_SELECTION_PRIMARY;
> -    } else {
> -        syslog(LOG_ERR, "get_clipboard_selection: unknown selection");
> -        return -1;
> -    }
> -
> -    return 0;
> -}
> -
>  static void vdagent_x11_handle_event(struct vdagent_x11 *x11, XEvent event)
>  {
>      int i, handled = 0;
> -    uint8_t selection;
> -
> -    if (event.type == x11->xfixes_event_base) {
> -        union {
> -            XEvent ev;
> -            XFixesSelectionNotifyEvent xfev;
> -        } ev;
> -
> -        if (vdagent_x11_get_clipboard_selection(x11, &event, &selection)) {
> -            return;
> -        }
> -
> -        ev.ev = event;
> -        switch (ev.xfev.subtype) {
> -        case XFixesSetSelectionOwnerNotify:
> -            break;
> -        /* Treat ... as a SelectionOwnerNotify None */
> -        case XFixesSelectionWindowDestroyNotify:
> -        case XFixesSelectionClientCloseNotify:
> -            ev.xfev.owner = None;
> -            break;
> -        default:
> -            VSELPRINTF("unexpected xfix event subtype %d window %d",
> -                       (int)ev.xfev.subtype, (int)event.xany.window);
> -            return;
> -        }
> -        VSELPRINTF("New selection owner: %u", (unsigned int)ev.xfev.owner);
> -
> -        /* Ignore becoming the owner ourselves */
> -        if (ev.xfev.owner == x11->selection_window)
> -            return;
> -
> -        /* If the clipboard owner is changed we no longer own it */
> -        vdagent_x11_set_clipboard_owner(x11, selection, owner_none);
> -
> -        if (ev.xfev.owner == None)
> -            return;
> -
> -        /* Request the supported targets from the new owner */
> -        XConvertSelection(x11->display, ev.xfev.selection, x11->targets_atom,
> -                          x11->targets_atom, x11->selection_window,
> -                          CurrentTime);
> -        x11->expected_targets_notifies[selection]++;
> -        return;
> -    }
>  
>      if (vdagent_x11_randr_handle_event(x11, event))
>          return;
> @@ -475,65 +197,6 @@ static void vdagent_x11_handle_event(struct vdagent_x11 *x11, XEvent event)
>          /* These are uninteresting */
>          handled = 1;
>          break;
> -    case SelectionNotify:
> -        if (event.xselection.target == x11->targets_atom)
> -            vdagent_x11_handle_targets_notify(x11, &event);
> -        else
> -            vdagent_x11_handle_selection_notify(x11, &event, 0);
> -
> -        handled = 1;
> -        break;
> -    case PropertyNotify:
> -        if (x11->expect_property_notify &&
> -                                event.xproperty.state == PropertyNewValue) {
> -            vdagent_x11_handle_selection_notify(x11, &event, 1);
> -        }
> -        if (x11->selection_req_data &&
> -                                 event.xproperty.state == PropertyDelete) {
> -            vdagent_x11_handle_property_delete_notify(x11, &event);
> -        }
> -        /* Always mark as handled, since we cannot unselect input for property
> -           notifications once we are done with handling the incr transfer. */
> -        handled = 1;
> -        break;
> -    case SelectionClear:
> -        /* Do nothing the clipboard ownership will get updated through
> -           the XFixesSetSelectionOwnerNotify event */
> -        handled = 1;
> -        break;
> -    case SelectionRequest: {
> -        struct vdagent_x11_selection_request *req, *new_req;
> -
> -        if (vdagent_x11_get_clipboard_selection(x11, &event, &selection)) {
> -            return;
> -        }
> -
> -        new_req = malloc(sizeof(*new_req));
> -        if (!new_req) {
> -            SELPRINTF("out of memory on SelectionRequest, ignoring.");
> -            break;
> -        }
> -
> -        handled = 1;
> -
> -        new_req->event = event;
> -        new_req->selection = selection;
> -        new_req->next = NULL;
> -
> -        if (!x11->selection_req) {
> -            x11->selection_req = new_req;
> -            vdagent_x11_handle_selection_request(x11);
> -            break;
> -        }
> -
> -        /* maybe we should limit the selection_request stack depth ? */
> -        req = x11->selection_req;
> -        while (req->next)
> -            req = req->next;
> -
> -        req->next = new_req;
> -        break;
> -    }
>      }
>      if (!handled && x11->debug)
>          syslog(LOG_DEBUG, "unhandled x11 event, type %d, window %d",
> @@ -550,741 +213,6 @@ void vdagent_x11_do_read(struct vdagent_x11 *x11)
>      }
>  }
>  
> -static const char *vdagent_x11_get_atom_name(struct vdagent_x11 *x11, Atom a)
> -{
> -    if (a == None)
> -        return "None";
> -
> -    return XGetAtomName(x11->display, a);
> -}
> -
> -static int vdagent_x11_get_selection(struct vdagent_x11 *x11, XEvent *event,
> -    uint8_t selection, Atom type, Atom prop, int format,
> -    unsigned char **data_ret, int incr)
> -{
> -    Bool del = incr ? True: False;
> -    Atom type_ret;
> -    int format_ret, ret_val = -1;
> -    unsigned long len, remain;
> -    unsigned char *data = NULL;
> -
> -    *data_ret = NULL;
> -
> -    if (!incr) {
> -        if (event->xselection.property == None) {
> -            VSELPRINTF("XConvertSelection refused by clipboard owner");
> -            goto exit;
> -        }
> -
> -        if (event->xselection.requestor != x11->selection_window ||
> -            event->xselection.property != prop) {
> -            SELPRINTF("SelectionNotify parameters mismatch");
> -            goto exit;
> -        }
> -    }
> -
> -    if (XGetWindowProperty(x11->display, x11->selection_window, prop, 0,
> -                           LONG_MAX, del, type, &type_ret, &format_ret, &len,
> -                           &remain, &data) != Success) {
> -        SELPRINTF("XGetWindowProperty failed");
> -        goto exit;
> -    }
> -
> -    if (!incr && prop != x11->targets_atom) {
> -        if (type_ret == x11->incr_atom) {
> -            int prop_min_size = *(uint32_t*)data;
> -
> -            if (x11->expect_property_notify) {
> -                SELPRINTF("received an incr SelectionNotify while "
> -                          "still reading another incr property");
> -                goto exit;
> -            }
> -
> -            if (x11->clipboard_data_space < prop_min_size) {
> -                free(x11->clipboard_data);
> -                x11->clipboard_data = malloc(prop_min_size);
> -                if (!x11->clipboard_data) {
> -                    SELPRINTF("out of memory allocating clipboard buffer");
> -                    x11->clipboard_data_space = 0;
> -                    goto exit;
> -                }
> -                x11->clipboard_data_space = prop_min_size;
> -            }
> -            x11->expect_property_notify = 1;
> -            XSelectInput(x11->display, x11->selection_window,
> -                         PropertyChangeMask);
> -            XDeleteProperty(x11->display, x11->selection_window, prop);
> -            XFree(data);
> -            return 0; /* Wait for more data */
> -        }
> -        XDeleteProperty(x11->display, x11->selection_window, prop);
> -    }
> -
> -    if (type_ret != type) {
> -        SELPRINTF("expected property type: %s, got: %s",
> -                  vdagent_x11_get_atom_name(x11, type),
> -                  vdagent_x11_get_atom_name(x11, type_ret));
> -        goto exit;
> -    }
> -
> -    if (format_ret != format) {
> -        SELPRINTF("expected %d bit format, got %d bits", format, format_ret);
> -        goto exit;
> -    }
> -
> -    /* Convert len to bytes */
> -    switch(format) {
> -    case 8:
> -        break;
> -    case 16:
> -        len *= sizeof(short);
> -        break;
> -    case 32:
> -        len *= sizeof(long);
> -        break;
> -    }
> -
> -    if (incr) {
> -        if (len) {
> -            if (x11->clipboard_data_size + len > x11->clipboard_data_space) {
> -                void *old_clipboard_data = x11->clipboard_data;
> -
> -                x11->clipboard_data_space = x11->clipboard_data_size + len;
> -                x11->clipboard_data = realloc(x11->clipboard_data,
> -                                              x11->clipboard_data_space);
> -                if (!x11->clipboard_data) {
> -                    SELPRINTF("out of memory allocating clipboard buffer");
> -                    x11->clipboard_data_space = 0;
> -                    free(old_clipboard_data);
> -                    goto exit;
> -                }
> -            }
> -            memcpy(x11->clipboard_data + x11->clipboard_data_size, data, len);
> -            x11->clipboard_data_size += len;
> -            VSELPRINTF("Appended %ld bytes to buffer", len);
> -            XFree(data);
> -            return 0; /* Wait for more data */
> -        }
> -        len = x11->clipboard_data_size;
> -        *data_ret = x11->clipboard_data;
> -    } else
> -        *data_ret = data;
> -
> -    if (len > 0) {
> -        ret_val = len;
> -    } else {
> -        SELPRINTF("property contains no data (zero length)");
> -        *data_ret = NULL;
> -    }
> -
> -exit:
> -    if ((incr || ret_val == -1) && data)
> -        XFree(data);
> -
> -    if (incr) {
> -        x11->clipboard_data_size = 0;
> -        x11->expect_property_notify = 0;
> -    }
> -
> -    return ret_val;
> -}
> -
> -static void vdagent_x11_get_selection_free(struct vdagent_x11 *x11,
> -    unsigned char *data, int incr)
> -{
> -    if (incr) {
> -        /* If the clipboard has grown large return the memory to the system */
> -        if (x11->clipboard_data_space > 512 * 1024) {
> -            free(x11->clipboard_data);
> -            x11->clipboard_data = NULL;
> -            x11->clipboard_data_space = 0;
> -        }
> -    } else if (data)
> -        XFree(data);
> -}
> -
> -static uint32_t vdagent_x11_target_to_type(struct vdagent_x11 *x11,
> -    uint8_t selection, Atom target)
> -{
> -    int i, j;
> -
> -    for (i = 0; i < clipboard_format_count; i++) {
> -        for (j = 0; j < x11->clipboard_formats[i].atom_count; j++) {
> -            if (x11->clipboard_formats[i].atoms[j] == target) {
> -                return x11->clipboard_formats[i].type;
> -            }
> -        }
> -    }
> -
> -    VSELPRINTF("unexpected selection type %s",
> -               vdagent_x11_get_atom_name(x11, target));
> -    return VD_AGENT_CLIPBOARD_NONE;
> -}
> -
> -static Atom vdagent_x11_type_to_target(struct vdagent_x11 *x11,
> -                                       uint8_t selection, uint32_t type)
> -{
> -    int i;
> -
> -    for (i = 0; i < x11->clipboard_type_count[selection]; i++) {
> -        if (x11->clipboard_agent_types[selection][i] == type) {
> -            return x11->clipboard_x11_targets[selection][i];
> -        }
> -    }
> -    SELPRINTF("client requested unavailable type %u", type);
> -    return None;
> -}
> -
> -static void vdagent_x11_handle_conversion_request(struct vdagent_x11 *x11)
> -{
> -    Atom clip = None;
> -
> -    if (!x11->conversion_req) {
> -        return;
> -    }
> -
> -    vdagent_x11_get_clipboard_atom(x11, x11->conversion_req->selection, &clip);
> -    XConvertSelection(x11->display, clip, x11->conversion_req->target,
> -                      clip, x11->selection_window, CurrentTime);
> -}
> -
> -static void vdagent_x11_handle_selection_notify(struct vdagent_x11 *x11,
> -                                                XEvent *event, int incr)
> -{
> -    int len = 0;
> -    unsigned char *data = NULL;
> -    uint32_t type;
> -    uint8_t selection = -1;
> -    Atom clip = None;
> -
> -    if (!x11->conversion_req) {
> -        syslog(LOG_ERR, "SelectionNotify received without a target");
> -        return;
> -    }
> -    vdagent_x11_get_clipboard_atom(x11, x11->conversion_req->selection, &clip);
> -
> -    if (incr) {
> -        if (event->xproperty.atom != clip ||
> -                event->xproperty.window != x11->selection_window) {
> -            return;
> -        }
> -    } else {
> -        if (vdagent_x11_get_clipboard_selection(x11, event, &selection)) {
> -            len = -1;
> -        } else if (selection != x11->conversion_req->selection) {
> -            SELPRINTF("Requested data for selection %d got %d",
> -                      (int)x11->conversion_req->selection, (int)selection);
> -            len = -1;
> -        }
> -        if (event->xselection.target != x11->conversion_req->target &&
> -                event->xselection.target != x11->incr_atom) {
> -            SELPRINTF("Requested %s target got %s",
> -                vdagent_x11_get_atom_name(x11, x11->conversion_req->target),
> -                vdagent_x11_get_atom_name(x11, event->xselection.target));
> -            len = -1;
> -        }
> -    }
> -
> -    selection = x11->conversion_req->selection;
> -    type = vdagent_x11_target_to_type(x11, selection,
> -                                      x11->conversion_req->target);
> -    if (type == VD_AGENT_CLIPBOARD_NONE)
> -        SELPRINTF("internal error conversion_req has bad target %s",
> -                  vdagent_x11_get_atom_name(x11, x11->conversion_req->target));
> -    if (len == 0) { /* No errors so far */
> -        len = vdagent_x11_get_selection(x11, event, selection,
> -                                        x11->conversion_req->target,
> -                                        clip, 8, &data, incr);
> -        if (len == 0) { /* waiting for more data? */
> -            return;
> -        }
> -    }
> -    if (len == -1) {
> -        type = VD_AGENT_CLIPBOARD_NONE;
> -        len = 0;
> -    }
> -
> -    udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_DATA, selection, type,
> -                data, len);
> -    vdagent_x11_get_selection_free(x11, data, incr);
> -
> -    vdagent_x11_next_conversion_request(x11);
> -    vdagent_x11_handle_conversion_request(x11);
> -}
> -
> -static Atom atom_lists_overlap(Atom *atoms1, Atom *atoms2, int l1, int l2)
> -{
> -    int i, j;
> -
> -    for (i = 0; i < l1; i++)
> -        for (j = 0; j < l2; j++)
> -            if (atoms1[i] == atoms2[j])
> -                return atoms1[i];
> -
> -    return 0;
> -}
> -
> -static void vdagent_x11_print_targets(struct vdagent_x11 *x11,
> -    uint8_t selection, const char *action, Atom *atoms, int c)
> -{
> -    int i;
> -    VSELPRINTF("%s %d targets:", action, c);
> -    for (i = 0; i < c; i++)
> -        VSELPRINTF("%s", vdagent_x11_get_atom_name(x11, atoms[i]));
> -}
> -
> -static void vdagent_x11_handle_targets_notify(struct vdagent_x11 *x11,
> -                                              XEvent *event)
> -{
> -    int i, len;
> -    Atom atom, *atoms = NULL;
> -    uint8_t selection;
> -    int *type_count;
> -
> -    if (vdagent_x11_get_clipboard_selection(x11, event, &selection)) {
> -        return;
> -    }
> -
> -    if (!x11->expected_targets_notifies[selection]) {
> -        SELPRINTF("unexpected selection notify TARGETS");
> -        return;
> -    }
> -
> -    x11->expected_targets_notifies[selection]--;
> -
> -    /* If we have more targets_notifies pending, ignore this one, we
> -       are only interested in the targets list of the current owner
> -       (which is the last one we've requested a targets list from) */
> -    if (x11->expected_targets_notifies[selection]) {
> -        return;
> -    }
> -
> -    len = vdagent_x11_get_selection(x11, event, selection,
> -                                    XA_ATOM, x11->targets_atom, 32,
> -                                    (unsigned char **)&atoms, 0);
> -    if (len == 0 || len == -1) /* waiting for more data or error? */
> -        return;
> -
> -    /* bytes -> atoms */
> -    len /= sizeof(Atom);
> -    vdagent_x11_print_targets(x11, selection, "received", atoms, len);
> -
> -    type_count = &x11->clipboard_type_count[selection];
> -    *type_count = 0;
> -    for (i = 0; i < clipboard_format_count; i++) {
> -        atom = atom_lists_overlap(x11->clipboard_formats[i].atoms, atoms,
> -                                  x11->clipboard_formats[i].atom_count, len);
> -        if (atom) {
> -            x11->clipboard_agent_types[selection][*type_count] =
> -                x11->clipboard_formats[i].type;
> -            x11->clipboard_x11_targets[selection][*type_count] = atom;
> -            (*type_count)++;
> -            if (*type_count ==
> -                    sizeof(x11->clipboard_agent_types[0])/sizeof(uint32_t)) {
> -                SELPRINTF("handle_targets_notify: too many types");
> -                break;
> -            }
> -        }
> -    }
> -
> -    if (*type_count) {
> -        udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_GRAB, selection, 0,
> -                    (uint8_t *)x11->clipboard_agent_types[selection],
> -                    *type_count * sizeof(uint32_t));
> -        vdagent_x11_set_clipboard_owner(x11, selection, owner_guest);
> -    }
> -
> -    vdagent_x11_get_selection_free(x11, (unsigned char *)atoms, 0);
> -}
> -
> -static void vdagent_x11_send_selection_notify(struct vdagent_x11 *x11,
> -    Atom prop, struct vdagent_x11_selection_request *request)
> -{
> -    XEvent res, *event;
> -
> -    if (request) {
> -        event = &request->event;
> -    } else {
> -        event = &x11->selection_req->event;
> -    }
> -
> -    res.xselection.property = prop;
> -    res.xselection.type = SelectionNotify;
> -    res.xselection.display = event->xselectionrequest.display;
> -    res.xselection.requestor = event->xselectionrequest.requestor;
> -    res.xselection.selection = event->xselectionrequest.selection;
> -    res.xselection.target = event->xselectionrequest.target;
> -    res.xselection.time = event->xselectionrequest.time;
> -
> -    vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
> -    XSendEvent(x11->display, event->xselectionrequest.requestor, 0, 0, &res);
> -    vdagent_x11_restore_error_handler(x11);
> -
> -    if (!request) {
> -        vdagent_x11_next_selection_request(x11);
> -        vdagent_x11_handle_selection_request(x11);
> -    }
> -}
> -
> -static void vdagent_x11_send_targets(struct vdagent_x11 *x11,
> -    uint8_t selection, XEvent *event)
> -{
> -    Atom prop, targets[256] = { x11->targets_atom, };
> -    int i, j, k, target_count = 1;
> -
> -    for (i = 0; i < x11->clipboard_type_count[selection]; i++) {
> -        for (j = 0; j < clipboard_format_count; j++) {
> -            if (x11->clipboard_formats[j].type !=
> -                    x11->clipboard_agent_types[selection][i])
> -                continue;
> -
> -            for (k = 0; k < x11->clipboard_formats[j].atom_count; k++) {
> -                targets[target_count] = x11->clipboard_formats[j].atoms[k];
> -                target_count++;
> -                if (target_count == sizeof(targets)/sizeof(Atom)) {
> -                    SELPRINTF("send_targets: too many targets");
> -                    goto exit_loop;
> -                }
> -            }
> -        }
> -    }
> -exit_loop:
> -
> -    prop = event->xselectionrequest.property;
> -    if (prop == None)
> -        prop = event->xselectionrequest.target;
> -
> -    vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
> -    XChangeProperty(x11->display, event->xselectionrequest.requestor, prop,
> -                    XA_ATOM, 32, PropModeReplace, (unsigned char *)&targets,
> -                    target_count);
> -    if (vdagent_x11_restore_error_handler(x11) == 0) {
> -        vdagent_x11_print_targets(x11, selection, "sent",
> -                                  targets, target_count);
> -        vdagent_x11_send_selection_notify(x11, prop, NULL);
> -    } else
> -        SELPRINTF("send_targets: Failed to sent, requestor window gone");
> -}
> -
> -static void vdagent_x11_handle_selection_request(struct vdagent_x11 *x11)
> -{
> -    XEvent *event;
> -    uint32_t type = VD_AGENT_CLIPBOARD_NONE;
> -    uint8_t selection;
> -
> -    if (!x11->selection_req)
> -        return;
> -
> -    event = &x11->selection_req->event;
> -    selection = x11->selection_req->selection;
> -
> -    if (x11->clipboard_owner[selection] != owner_client) {
> -        SELPRINTF("received selection request event for target %s, "
> -                  "while not owning client clipboard",
> -            vdagent_x11_get_atom_name(x11, event->xselectionrequest.target));
> -        vdagent_x11_send_selection_notify(x11, None, NULL);
> -        return;
> -    }
> -
> -    if (event->xselectionrequest.target == x11->multiple_atom) {
> -        SELPRINTF("multiple target not supported");
> -        vdagent_x11_send_selection_notify(x11, None, NULL);
> -        return;
> -    }
> -
> -    if (event->xselectionrequest.target == x11->timestamp_atom) {
> -        /* TODO: use more accurate selection time */
> -        guint32 timestamp = event->xselectionrequest.time;
> -
> -        XChangeProperty(x11->display, event->xselectionrequest.requestor,
> -                       event->xselectionrequest.property,
> -                        event->xselectionrequest.target, 32, PropModeReplace,
> -                        (guint8*)&timestamp, 1);
> -        vdagent_x11_send_selection_notify(x11,
> -                       event->xselectionrequest.property, NULL);
> -       return;
> -    }
> -
> -
> -    if (event->xselectionrequest.target == x11->targets_atom) {
> -        vdagent_x11_send_targets(x11, selection, event);
> -        return;
> -    }
> -
> -    type = vdagent_x11_target_to_type(x11, selection,
> -                                      event->xselectionrequest.target);
> -    if (type == VD_AGENT_CLIPBOARD_NONE) {
> -        VSELPRINTF("guest app requested a non-advertised target");
> -        vdagent_x11_send_selection_notify(x11, None, NULL);
> -        return;
> -    }
> -
> -    udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_REQUEST, selection, type,
> -                NULL, 0);
> -}
> -
> -static void vdagent_x11_handle_property_delete_notify(struct vdagent_x11 *x11,
> -                                                      XEvent *del_event)
> -{
> -    XEvent *sel_event;
> -    int len;
> -    uint8_t selection;
> -
> -    assert(x11->selection_req);
> -    sel_event = &x11->selection_req->event;
> -    selection = x11->selection_req->selection;
> -    if (del_event->xproperty.window != sel_event->xselectionrequest.requestor
> -            || del_event->xproperty.atom != x11->selection_req_atom) {
> -        return;
> -    }
> -
> -    len = x11->selection_req_data_size - x11->selection_req_data_pos;
> -    if (len > x11->max_prop_size) {
> -        len = x11->max_prop_size;
> -    }
> -
> -    if (len) {
> -        VSELPRINTF("Sending %d-%d/%d bytes of clipboard data",
> -                x11->selection_req_data_pos,
> -                x11->selection_req_data_pos + len - 1,
> -                x11->selection_req_data_size);
> -    } else {
> -        VSELPRINTF("Ending incr send of clipboard data");
> -    }
> -    vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
> -    XChangeProperty(x11->display, sel_event->xselectionrequest.requestor,
> -                    x11->selection_req_atom,
> -                    sel_event->xselectionrequest.target, 8, PropModeReplace,
> -                    x11->selection_req_data + x11->selection_req_data_pos,
> -                    len);
> -    if (vdagent_x11_restore_error_handler(x11)) {
> -        SELPRINTF("incr sent failed, requestor window gone");
> -        len = 0;
> -    }
> -
> -    x11->selection_req_data_pos += len;
> -
> -    /* Note we must explicitly send a 0 sized XChangeProperty to signal the
> -       incr transfer is done. Hence we do not check if we've send all data
> -       but instead check we've send the final 0 sized XChangeProperty. */
> -    if (len == 0) {
> -        free(x11->selection_req_data);
> -        x11->selection_req_data = NULL;
> -        x11->selection_req_data_pos = 0;
> -        x11->selection_req_data_size = 0;
> -        x11->selection_req_atom = None;
> -        vdagent_x11_next_selection_request(x11);
> -        vdagent_x11_handle_selection_request(x11);
> -    }
> -}
> -
> -void vdagent_x11_clipboard_request(struct vdagent_x11 *x11,
> -        uint8_t selection, uint32_t type)
> -{
> -    Atom target, clip;
> -    struct vdagent_x11_conversion_request *req, *new_req;
> -
> -    /* We don't use clip here, but we call get_clipboard_atom to verify
> -       selection is valid */
> -    if (vdagent_x11_get_clipboard_atom(x11, selection, &clip)) {
> -        goto none;
> -    }
> -
> -    if (x11->clipboard_owner[selection] != owner_guest) {
> -        SELPRINTF("received clipboard req while not owning guest clipboard");
> -        goto none;
> -    }
> -
> -    target = vdagent_x11_type_to_target(x11, selection, type);
> -    if (target == None) {
> -        goto none;
> -    }
> -
> -    new_req = malloc(sizeof(*new_req));
> -    if (!new_req) {
> -        SELPRINTF("out of memory on client clipboard request, ignoring.");
> -        return;
> -    }
> -
> -    new_req->target = target;
> -    new_req->selection = selection;
> -    new_req->next = NULL;
> -
> -    if (!x11->conversion_req) {
> -        x11->conversion_req = new_req;
> -        vdagent_x11_handle_conversion_request(x11);
> -        /* Flush output buffers and consume any pending events */
> -        vdagent_x11_do_read(x11);
> -        return;
> -    }
> -
> -    /* maybe we should limit the conversion_request stack depth ? */
> -    req = x11->conversion_req;
> -    while (req->next)
> -        req = req->next;
> -
> -    req->next = new_req;
> -    return;
> -
> -none:
> -    udscs_write(x11->vdagentd, VDAGENTD_CLIPBOARD_DATA,
> -                selection, VD_AGENT_CLIPBOARD_NONE, NULL, 0);
> -}
> -
> -void vdagent_x11_clipboard_grab(struct vdagent_x11 *x11, uint8_t selection,
> -    uint32_t *types, uint32_t type_count)
> -{
> -    Atom clip = None;
> -
> -    if (vdagent_x11_get_clipboard_atom(x11, selection, &clip)) {
> -        return;
> -    }
> -
> -    if (type_count > sizeof(x11->clipboard_agent_types[0])/sizeof(uint32_t)) {
> -        SELPRINTF("x11_clipboard_grab: too many types");
> -        type_count = sizeof(x11->clipboard_agent_types[0])/sizeof(uint32_t);
> -    }
> -
> -    memcpy(x11->clipboard_agent_types[selection], types,
> -           type_count * sizeof(uint32_t));
> -    x11->clipboard_type_count[selection] = type_count;
> -
> -    XSetSelectionOwner(x11->display, clip,
> -                       x11->selection_window, CurrentTime);
> -    vdagent_x11_set_clipboard_owner(x11, selection, owner_client);
> -
> -    /* Flush output buffers and consume any pending events */
> -    vdagent_x11_do_read(x11);
> -}
> -
> -void vdagent_x11_clipboard_data(struct vdagent_x11 *x11, uint8_t selection,
> -    uint32_t type, uint8_t *data, uint32_t size)
> -{
> -    Atom prop;
> -    XEvent *event;
> -    uint32_t type_from_event;
> -
> -    if (x11->selection_req_data) {
> -        if (type || size) {
> -            SELPRINTF("received clipboard data while still sending"
> -                      " data from previous request, ignoring");
> -        }
> -        return;
> -    }
> -
> -    if (!x11->selection_req) {
> -        if (type || size) {
> -            SELPRINTF("received clipboard data without an "
> -                      "outstanding selection request, ignoring");
> -        }
> -        return;
> -    }
> -
> -    event = &x11->selection_req->event;
> -    type_from_event = vdagent_x11_target_to_type(x11,
> -                                             x11->selection_req->selection,
> -                                             event->xselectionrequest.target);
> -    if (type_from_event != type ||
> -            selection != x11->selection_req->selection) {
> -        if (selection != x11->selection_req->selection) {
> -            SELPRINTF("expecting data for selection %d got %d",
> -                      (int)x11->selection_req->selection, (int)selection);
> -        }
> -        if (type_from_event != type) {
> -            SELPRINTF("expecting type %u clipboard data got %u",
> -                      type_from_event, type);
> -        }
> -        vdagent_x11_send_selection_notify(x11, None, NULL);
> -
> -        /* Flush output buffers and consume any pending events */
> -        vdagent_x11_do_read(x11);
> -        return;
> -    }
> -
> -    prop = event->xselectionrequest.property;
> -    if (prop == None)
> -        prop = event->xselectionrequest.target;
> -
> -    if (size > x11->max_prop_size) {
> -        unsigned long len = size;
> -        VSELPRINTF("Starting incr send of clipboard data");
> -
> -        vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
> -        XSelectInput(x11->display, event->xselectionrequest.requestor,
> -                     PropertyChangeMask);
> -        XChangeProperty(x11->display, event->xselectionrequest.requestor, prop,
> -                        x11->incr_atom, 32, PropModeReplace,
> -                        (unsigned char*)&len, 1);
> -        if (vdagent_x11_restore_error_handler(x11) == 0) {
> -            /* duplicate data */
> -            x11->selection_req_data = malloc(size);
> -            if (x11->selection_req_data != NULL) {
> -                memcpy(x11->selection_req_data, data, size);
> -                x11->selection_req_data_pos = 0;
> -                x11->selection_req_data_size = size;
> -                x11->selection_req_atom = prop;
> -                vdagent_x11_send_selection_notify(x11, prop, x11->selection_req);
> -            } else {
> -                SELPRINTF("out of memory allocating selection buffer");
> -            }
> -        } else {
> -            SELPRINTF("clipboard data sent failed, requestor window gone");
> -        }
> -    } else {
> -        vdagent_x11_set_error_handler(x11, vdagent_x11_ignore_bad_window_handler);
> -        XChangeProperty(x11->display, event->xselectionrequest.requestor, prop,
> -                        event->xselectionrequest.target, 8, PropModeReplace,
> -                        data, size);
> -        if (vdagent_x11_restore_error_handler(x11) == 0)
> -            vdagent_x11_send_selection_notify(x11, prop, NULL);
> -        else
> -            SELPRINTF("clipboard data sent failed, requestor window gone");
> -    }
> -
> -    /* Flush output buffers and consume any pending events */
> -    vdagent_x11_do_read(x11);
> -}
> -
> -void vdagent_x11_clipboard_release(struct vdagent_x11 *x11, uint8_t selection)
> -{
> -    XEvent event;
> -    Atom clip = None;
> -
> -    if (vdagent_x11_get_clipboard_atom(x11, selection, &clip)) {
> -        return;
> -    }
> -
> -    if (x11->clipboard_owner[selection] != owner_client) {
> -        VSELPRINTF("received release while not owning client clipboard");
> -        return;
> -    }
> -
> -    XSetSelectionOwner(x11->display, clip, None, CurrentTime);
> -    /* Make sure we process the XFixesSetSelectionOwnerNotify event caused
> -       by this, so we don't end up changing the clipboard owner to none, after
> -       it has already been re-owned because this event is still pending. */
> -    XSync(x11->display, False);
> -    while (XCheckTypedEvent(x11->display, x11->xfixes_event_base,
> -                            &event))
> -        vdagent_x11_handle_event(x11, event);
> -
> -    /* Note no need to do a set_clipboard_owner(owner_none) here, as that is
> -       already done by processing the XFixesSetSelectionOwnerNotify event. */
> -
> -    /* Flush output buffers and consume any pending events */
> -    vdagent_x11_do_read(x11);
> -}
> -
> -void vdagent_x11_client_disconnected(struct vdagent_x11 *x11)
> -{
> -    int sel;
> -
> -    for (sel = 0; sel < VD_AGENT_CLIPBOARD_SELECTION_SECONDARY; sel++) {
> -        if (x11->clipboard_owner[sel] == owner_client)
> -            vdagent_x11_clipboard_release(x11, sel);
> -    }
> -}
> -
>  /* Function used to determine the default location to save file-xfers,
>     xdg desktop dir or xdg download dir. We err on the safe side and use a
>     whitelist approach, so any unknown desktop will end up with saving
> diff --git a/src/vdagent/x11.h b/src/vdagent/x11.h
> index a8ceb08..6ad09c2 100644
> --- a/src/vdagent/x11.h
> +++ b/src/vdagent/x11.h
> @@ -38,16 +38,6 @@ void vdagent_x11_do_read(struct vdagent_x11 *x11);
>  void vdagent_x11_set_monitor_config(struct vdagent_x11 *x11,
>      VDAgentMonitorsConfig *mon_config, int fallback);
>  
> -void vdagent_x11_clipboard_grab(struct vdagent_x11 *x11, uint8_t selection,
> -    uint32_t *types, uint32_t type_count);
> -void vdagent_x11_clipboard_request(struct vdagent_x11 *x11,
> -    uint8_t selection, uint32_t type);
> -void vdagent_x11_clipboard_data(struct vdagent_x11 *x11, uint8_t selection,
> -    uint32_t type, uint8_t *data, uint32_t size);
> -void vdagent_x11_clipboard_release(struct vdagent_x11 *x11, uint8_t selection);
> -
> -void vdagent_x11_client_disconnected(struct vdagent_x11 *x11);
> -
>  int vdagent_x11_has_icons_on_desktop();
>  
>  #endif
> -- 
> 2.14.3
> 
> _______________________________________________
> Spice-devel mailing list
> Spice-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/spice-devel
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