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dbus: guard against uninitialized D-Bus 

Before calling any D-Bus related methods we should first ensure that
they
were correctly loaded.

In the event where `LoadDBUSLibrary()` was not able to load the D-Bus
library, we should just return early, signalling with SDL_FALSE that we
were unable to inhibit the Screensaver.

Helps: https://github.com/ValveSoftware/steam-for-linux/issues/8815

Signed-off-by: Ludovico de Nittis <ludovico.denittis@collabora.com>
This commit is contained in:
Ludovico de Nittis 2022-09-28 10:25:24 +02:00 committed by Ryan C. Gordon
parent 57b5c9107e
commit 379d478055
1 changed files with 6 additions and 0 deletions
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6
src/core/linux/SDL_dbus.c
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@ -419,6 +419,12 @@ SDL_DBus_ScreensaverInhibit(SDL_bool inhibit)
return SDL_TRUE;
}
if (!dbus.session_conn) {
/* We either lost connection to the session bus or were not able to
* load the D-Bus library at all. */
return SDL_FALSE;
}
if (SDL_DetectSandbox() != SDL_SANDBOX_NONE) {
const char *bus_name = "org.freedesktop.portal.Desktop";
const char *path = "/org/freedesktop/portal/desktop";