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view: fix NULL string_prop crash

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...when app_id is NULL.

Make sure view_get_string_prop() never returns NULL because it is so easy
to misuse. Same for the respective xwayland/xdg impl methods in case
anyone decides to (incorrectly) call them directly in future.

Fixes: #2453
This commit is contained in:
Johan Malm 2024-12-27 22:37:35 +00:00 • committed by Johan Malm
parent bad788ccdd
commit 023427b4f4
3 changed files with 8 additions and 6 deletions
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4
src/view.c
View file

@ -2335,13 +2335,15 @@ view_has_strut_partial(struct view *view)
view->impl->has_strut_partial(view);
}
/* Note: It is safe to assume that this function never returns NULL */
const char *
view_get_string_prop(struct view *view, const char *prop)
{
assert(view);
assert(prop);
if (view->impl->get_string_prop) {
return view->impl->get_string_prop(view, prop);
const char *ret = view->impl->get_string_prop(view, prop);
return ret ? ret : "";
}
return "";
}