andreacavalli/xserver-multidpi
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mieqEnqueue: Don't try to update the time for GenericEvents.

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Doing so may overwrite the event's length field and cause havoc. Also check if
realloc'd memory did actually return valid pointer.
This commit is contained in:
Peter Hutterer 2007-07-16 18:01:00 +09:30
parent ffdf8f3e45
commit 9eddede039
1 changed files with 10 additions and 2 deletions
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12
mi/mieq.c
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@ -184,6 +184,11 @@ mieqEnqueue(DeviceIntPtr pDev, xEvent *e)
{ {
evt->evlen = evlen; evt->evlen = evlen;
evt->event = xrealloc(evt->event, evt->evlen); evt->event = xrealloc(evt->event, evt->evlen);
if (!evt->event)
{
ErrorF("Running out of memory. Tossing event.\n");
return;
}
} }
memcpy(evt->event, e, evlen); memcpy(evt->event, e, evlen);
@ -191,8 +196,9 @@ mieqEnqueue(DeviceIntPtr pDev, xEvent *e)
/* Make sure that event times don't go backwards - this /* Make sure that event times don't go backwards - this
* is "unnecessary", but very useful. */ * is "unnecessary", but very useful. */
if (e->u.keyButtonPointer.time < miEventQueue.lastEventTime && if (e->u.u.type != GenericEvent &&
miEventQueue.lastEventTime - e->u.keyButtonPointer.time < 10000) e->u.keyButtonPointer.time < miEventQueue.lastEventTime &&
miEventQueue.lastEventTime - e->u.keyButtonPointer.time < 10000)
evt->event->u.keyButtonPointer.time = miEventQueue.lastEventTime; evt->event->u.keyButtonPointer.time = miEventQueue.lastEventTime;
miEventQueue.lastEventTime = evt->event->u.keyButtonPointer.time; miEventQueue.lastEventTime = evt->event->u.keyButtonPointer.time;
@ -293,7 +299,9 @@ mieqProcessInputEvents(void)
memcpy(&event[i], e->events[i].event, sizeof(xEvent)); memcpy(&event[i], e->events[i].event, sizeof(xEvent));
} }
else else
{
event = e->events->event; event = e->events->event;
}
/* MPX devices send both core and Xi events. /* MPX devices send both core and Xi events.
* Use dev to get the correct processing function but supply * Use dev to get the correct processing function but supply