frederik
/
xserver
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

(!1981) Xi: exevents: extra asserts on NULL pointers 

Even though shouldn't be practically hit, better have some asserts,
giving us an idea of the point of cause, instead of segfaulting,
just in case.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult 2025-05-07 14:19:45 +02:00
parent 77e55693e7
commit f461ccdfaf
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
Xi/exevents.c
View File

@ -490,6 +490,7 @@ DeepCopyKeyboardClasses(DeviceIntPtr from, DeviceIntPtr to)
if (!k->xkb_sli)
continue;
if (k->xkb_sli->flags & XkbSLI_IsDefault) {
assert(to->key);
k->xkb_sli->names = to->key->xkbInfo->desc->names->indicators;
k->xkb_sli->maps = to->key->xkbInfo->desc->indicators->maps;
}
@ -1043,6 +1044,7 @@ TouchClientWantsOwnershipEvents(ClientPtr client, DeviceIntPtr dev,
{
InputClients *iclient;
assert(wOtherInputMasks(win));
nt_list_for_each_entry(iclient, wOtherInputMasks(win)->inputClients, next) {
if (rClient(iclient) != client)
continue;
@ -1388,6 +1390,8 @@ RetrieveTouchDeliveryData(DeviceIntPtr dev, TouchPointInfoPtr ti,
else
evtype = GetXI2Type(ev->any.type);
assert(iclients);
assert(wOtherInputMasks(*win));
nt_list_for_each_entry(iclients,
wOtherInputMasks(*win)->inputClients, next)
if (xi2mask_isset(iclients->xi2mask, dev, evtype))
@ -1402,6 +1406,7 @@ RetrieveTouchDeliveryData(DeviceIntPtr dev, TouchPointInfoPtr ti,
int xi_type = GetXIType(TouchGetPointerEventType(ev));
Mask xi_filter = event_get_filter_from_type(dev, xi_type);
assert(wOtherInputMasks(*win));
nt_list_for_each_entry(iclients,
wOtherInputMasks(*win)->inputClients, next)
if (iclients->mask[dev->id] & xi_filter)
@ -2291,6 +2296,7 @@ RetrieveGestureDeliveryData(DeviceIntPtr dev, InternalEvent *ev, GestureListener
listener->type == GESTURE_LISTENER_REGULAR */
evtype = GetXI2Type(ev->any.type);
assert(wOtherInputMasks(*win));
nt_list_for_each_entry(iclients, wOtherInputMasks(*win)->inputClients, next)
if (xi2mask_isset(iclients->xi2mask, dev, evtype))
break;
@ -2680,6 +2686,7 @@ SelectForWindow(DeviceIntPtr dev, WindowPtr pWin, ClientPtr client,
return BadAccess;
}
}
assert(wOtherInputMasks(pWin));
for (others = wOtherInputMasks(pWin)->inputClients; others;
others = others->next) {
if (SameClient(others, client)) {
@ -3339,6 +3346,7 @@ XISetEventMask(DeviceIntPtr dev, WindowPtr win, ClientPtr client,
if (len && !others) {
if (AddExtensionClient(win, client, 0, 0) != Success)
return BadAlloc;
assert(wOtherInputMasks(win));
others = wOtherInputMasks(win)->inputClients;
}
@ -3348,6 +3356,7 @@ XISetEventMask(DeviceIntPtr dev, WindowPtr win, ClientPtr client,
}
if (len) {
assert(others);
xi2mask_set_one_mask(others->xi2mask, dev->id, mask, len);
}