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core: Check environment variables before giving to GAppLaunchContext

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Depending on the type of session, one or the other might be NULL, which
is not meant to be handled by these functions. Check for both DISPLAY
envvars before setting them on the GAppLaunchContext.

Closes: https://gitlab.gnome.org/GNOME/mutter/issues/586
This commit is contained in:
Carlos Garnacho 2019-05-06 13:00:09 +02:00
parent 6a89e7969f
commit bf8bc65cc9
1 changed files with 15 additions and 4 deletions
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19
src/core/meta-launch-context.c
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@ -110,13 +110,24 @@ static void
meta_launch_context_constructed (GObject *object)
{
MetaLaunchContext *context = META_LAUNCH_CONTEXT (object);
const char *x11_display, *wayland_display;
G_OBJECT_CLASS (meta_launch_context_parent_class)->constructed (object);
g_app_launch_context_setenv (G_APP_LAUNCH_CONTEXT (context),
"DISPLAY", getenv ("DISPLAY"));
g_app_launch_context_setenv (G_APP_LAUNCH_CONTEXT (context),
"WAYLAND_DISPLAY", getenv ("WAYLAND_DISPLAY"));
x11_display = getenv ("DISPLAY");
wayland_display = getenv ("WAYLAND_DISPLAY");
if (x11_display)
{
g_app_launch_context_setenv (G_APP_LAUNCH_CONTEXT (context),
"DISPLAY", x11_display);
}
if (wayland_display)
{
g_app_launch_context_setenv (G_APP_LAUNCH_CONTEXT (context),
"WAYLAND_DISPLAY", wayland_display);
}
}
static gchar *