int
ProcGetSelectionOwner(ClientPtr client)
{
int rc;
Selection *pSel;
xGetSelectionOwnerReply reply;
REQUEST(xResourceReq);
REQUEST_SIZE_MATCH(xResourceReq);
if (!ValidAtom(stuff->id)) {
client->errorValue = stuff->id;
return BadAtom;
}
memset(&reply, 0, sizeof(xGetSelectionOwnerReply));
reply.type = X_Reply;
reply.length = 0;
reply.sequenceNumber = client->sequence;
rc = dixLookupSelection(&pSel, stuff->id, client, DixGetAttrAccess);
if (rc == Success)
reply.owner = pSel->window;
else if (rc == BadMatch)
reply.owner = None;
else
return rc;
WriteReplyToClient(client, sizeof(xGetSelectionOwnerReply), &reply);
return client->noClientException;
}
int
ProcConvertSelection(ClientPtr client)
{
Bool paramsOkay;
xEvent event;
WindowPtr pWin;
Selection *pSel;
int rc;
REQUEST(xConvertSelectionReq);
REQUEST_SIZE_MATCH(xConvertSelectionReq);
rc = dixLookupWindow(&pWin, stuff->requestor, client, DixSetAttrAccess);
if (rc != Success)
return rc;
paramsOkay = ValidAtom(stuff->selection) && ValidAtom(stuff->target);
paramsOkay &= (stuff->property == None) || ValidAtom(stuff->property);
if (!paramsOkay) {
client->errorValue = stuff->property;
return BadAtom;
}
rc = dixLookupSelection(&pSel, stuff->selection, client, DixReadAccess);
memset(&event, 0, sizeof(xEvent));
if (rc != Success && rc != BadMatch)
return rc;
else if (rc == Success && pSel->window != None) {
event.u.u.type = SelectionRequest;
event.u.selectionRequest.owner = pSel->window;
event.u.selectionRequest.time = stuff->time;
event.u.selectionRequest.requestor = stuff->requestor;
event.u.selectionRequest.selection = stuff->selection;
event.u.selectionRequest.target = stuff->target;
event.u.selectionRequest.property = stuff->property;
if (pSel->client && pSel->client != serverClient &&
!pSel->client->clientGone) {
WriteEventsToClient(pSel->client, 1, &event);
return Success;
}
}
event.u.u.type = SelectionNotify;
event.u.selectionNotify.time = stuff->time;
event.u.selectionNotify.requestor = stuff->requestor;
event.u.selectionNotify.selection = stuff->selection;
event.u.selectionNotify.target = stuff->target;
event.u.selectionNotify.property = None;
WriteEventsToClient(client, 1, &event);
return Success;
}
int
ProcSetSelectionOwner(ClientPtr client)
{
WindowPtr pWin = NULL;
TimeStamp time;
Selection *pSel;
int rc;
REQUEST(xSetSelectionOwnerReq);
REQUEST_SIZE_MATCH(xSetSelectionOwnerReq);
UpdateCurrentTime();
time = ClientTimeToServerTime(stuff->time);
/* If the client's time stamp is in the future relative to the server's
time stamp, do not set the selection, just return success. */
if (CompareTimeStamps(time, currentTime) == LATER)
return Success;
if (stuff->window != None) {
rc = dixLookupWindow(&pWin, stuff->window, client, DixSetAttrAccess);
if (rc != Success)
return rc;
}
if (!ValidAtom(stuff->selection)) {
client->errorValue = stuff->selection;
return BadAtom;
}
/*
* First, see if the selection is already set...
*/
rc = dixLookupSelection(&pSel, stuff->selection, client, DixSetAttrAccess);
if (rc == Success) {
/* If the timestamp in client's request is in the past relative
to the time stamp indicating the last time the owner of the
selection was set, do not set the selection, just return
success. */
if (CompareTimeStamps(time, pSel->lastTimeChanged) == EARLIER)
return Success;
if (pSel->client && (!pWin || (pSel->client != client))) {
xEvent event = {
.u.selectionClear.time = time.milliseconds,
.u.selectionClear.window = pSel->window,
.u.selectionClear.atom = pSel->selection
};
event.u.u.type = SelectionClear;
WriteEventsToClient(pSel->client, 1, &event);
}
}
else if (rc == BadMatch) {
int
ProcConvertSelection(ClientPtr client)
{
Bool paramsOkay;
xEvent event;
WindowPtr pWin;
Selection *pSel;
int rc;
REQUEST(xConvertSelectionReq);
REQUEST_SIZE_MATCH(xConvertSelectionReq);
rc = dixLookupWindow(&pWin, stuff->requestor, client, DixSetAttrAccess);
if (rc != Success)
return rc;
paramsOkay = ValidAtom(stuff->selection) && ValidAtom(stuff->target);
paramsOkay &= (stuff->property == None) || ValidAtom(stuff->property);
if (!paramsOkay) {
client->errorValue = stuff->property;
return BadAtom;
}
rc = dixLookupSelection(&pSel, stuff->selection, client, DixReadAccess);
memset(&event, 0, sizeof(xEvent));
if (rc != Success && rc != BadMatch)
return rc;
else if (rc == Success && pSel->window != None) {
event.u.u.type = SelectionRequest;
event.u.selectionRequest.owner = pSel->window;
event.u.selectionRequest.time = stuff->time;
event.u.selectionRequest.requestor = stuff->requestor;
event.u.selectionRequest.selection = stuff->selection;
event.u.selectionRequest.target = stuff->target;
event.u.selectionRequest.property = stuff->property;
if (TryClientEvents(pSel->client, NULL, &event, 1, NoEventMask,
NoEventMask /* CantBeFiltered */, NullGrab))
return client->noClientException;
}
event.u.u.type = SelectionNotify;
event.u.selectionNotify.time = stuff->time;
event.u.selectionNotify.requestor = stuff->requestor;
event.u.selectionNotify.selection = stuff->selection;
event.u.selectionNotify.target = stuff->target;
event.u.selectionNotify.property = None;
TryClientEvents(client, NULL, &event, 1, NoEventMask,
NoEventMask /* CantBeFiltered */, NullGrab);
return client->noClientException;
}
static int
ProcSELinuxGetSelectionContext(ClientPtr client, pointer privKey)
{
Selection *pSel;
SELinuxObjectRec *obj;
int rc;
REQUEST(SELinuxGetContextReq);
REQUEST_SIZE_MATCH(SELinuxGetContextReq);
rc = dixLookupSelection(&pSel, stuff->id, client, DixGetAttrAccess);
if (rc != Success)
return rc;
obj = dixLookupPrivate(&pSel->devPrivates, privKey);
return SELinuxSendContextReply(client, obj->sid);
}
static int vncOwnSelection(Atom selection)
{
Selection *pSel;
int rc;
SelectionInfoRec info;
rc = vncCreateSelectionWindow();
if (rc != Success)
return rc;
rc = dixLookupSelection(&pSel, selection, serverClient, DixSetAttrAccess);
if (rc == Success) {
if (pSel->client && (pSel->client != serverClient)) {
xEvent event = {
.u.selectionClear.time = currentTime.milliseconds,
.u.selectionClear.window = pSel->window,
.u.selectionClear.atom = pSel->selection
};
event.u.u.type = SelectionClear;
WriteEventsToClient(pSel->client, 1, &event);
}
} else if (rc == BadMatch) {
int
ProcSetSelectionOwner(ClientPtr client)
{
WindowPtr pWin = NULL;
TimeStamp time;
Selection *pSel;
int rc;
REQUEST(xSetSelectionOwnerReq);
REQUEST_SIZE_MATCH(xSetSelectionOwnerReq);
UpdateCurrentTime();
time = ClientTimeToServerTime(stuff->time);
/* If the client's time stamp is in the future relative to the server's
time stamp, do not set the selection, just return success. */
if (CompareTimeStamps(time, currentTime) == LATER)
return Success;
if (stuff->window != None) {
rc = dixLookupWindow(&pWin, stuff->window, client, DixSetAttrAccess);
if (rc != Success)
return rc;
}
if (!ValidAtom(stuff->selection)) {
client->errorValue = stuff->selection;
return BadAtom;
}
/*
* First, see if the selection is already set...
*/
rc = dixLookupSelection(&pSel, stuff->selection, client, DixSetAttrAccess);
if (rc == Success) {
xEvent event;
/* If the timestamp in client's request is in the past relative
to the time stamp indicating the last time the owner of the
selection was set, do not set the selection, just return
success. */
if (CompareTimeStamps(time, pSel->lastTimeChanged) == EARLIER)
return Success;
if (pSel->client && (!pWin || (pSel->client != client)))
{
event.u.u.type = SelectionClear;
event.u.selectionClear.time = time.milliseconds;
event.u.selectionClear.window = pSel->window;
event.u.selectionClear.atom = pSel->selection;
TryClientEvents(pSel->client, NULL, &event, 1, NoEventMask,
NoEventMask /* CantBeFiltered */, NullGrab);
}
}
else if (rc == BadMatch)
{
/*
* It doesn't exist, so add it...
*/
pSel = xalloc(sizeof(Selection));
if (!pSel)
return BadAlloc;
pSel->selection = stuff->selection;
pSel->devPrivates = NULL;
/* security creation/labeling check */
rc = XaceHookSelectionAccess(client, &pSel,
DixCreateAccess|DixSetAttrAccess);
if (rc != Success) {
xfree(pSel);
return rc;
}
pSel->next = CurrentSelections;
CurrentSelections = pSel;
}
else
return rc;
pSel->lastTimeChanged = time;
pSel->window = stuff->window;
pSel->pWin = pWin;
pSel->client = (pWin ? client : NullClient);
CallSelectionCallback(pSel, client, SelectionSetOwner);
return client->noClientException;
}
