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Message #02788
[Merge] lp:~ted/dbusmenu/builder-crash into lp:dbusmenu
Ted Gould has proposed merging lp:~ted/dbusmenu/builder-crash into lp:dbusmenu.
Requested reviews:
DBus Menu Team (dbusmenu-team)
Related bugs:
#703039 libdbusmenu-glib crashes nm-applet due to new GVariantBuilder code
https://bugs.launchpad.net/bugs/703039
For more details, see:
https://code.launchpad.net/~ted/dbusmenu/builder-crash/+merge/46638
Fix on builder where there are no items. Warn when there is issues.
--
https://code.launchpad.net/~ted/dbusmenu/builder-crash/+merge/46638
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=== modified file 'libdbusmenu-glib/server.c'
--- libdbusmenu-glib/server.c 2011-01-14 15:56:07 +0000
+++ libdbusmenu-glib/server.c 2011-01-18 17:36:07 +0000
@@ -894,20 +894,31 @@
g_variant_iter_init(&ids, g_variant_get_child_value(params, 0));
GVariantBuilder builder;
- g_variant_builder_init(&builder, G_VARIANT_TYPE_ARRAY);
+ gboolean builder_init = FALSE;
gint id;
while (g_variant_iter_next(&ids, "i", &id)) {
DbusmenuMenuitem * mi = dbusmenu_menuitem_find_id(priv->root, id);
if (mi == NULL) continue;
+ if (!builder_init) {
+ g_variant_builder_init(&builder, G_VARIANT_TYPE_ARRAY);
+ builder_init = TRUE;
+ }
+
GVariantBuilder wbuilder;
g_variant_builder_init(&wbuilder, G_VARIANT_TYPE_TUPLE);
g_variant_builder_add(&wbuilder, "i", id);
GVariant * props = dbusmenu_menuitem_properties_variant(mi);
if (props == NULL) {
- props = g_variant_parse(g_variant_type_new("a{sv}"), "{}", NULL, NULL, NULL);
+ GError * error = NULL;
+ props = g_variant_parse(g_variant_type_new("a{sv}"), "{}", NULL, NULL, &error);
+ if (error != NULL) {
+ g_warning("Unable to parse '{}' as a 'a{sv}': %s", error->message);
+ g_error_free(error);
+ props = NULL;
+ }
}
g_variant_builder_add_value(&wbuilder, props);
@@ -916,11 +927,28 @@
g_variant_builder_add_value(&builder, mi_data);
}
- GVariant * ret = g_variant_builder_end(&builder);
+ GVariant * ret = NULL;
+
+ if (builder_init) {
+ ret = g_variant_builder_end(&builder);
+ } else {
+ GError * error = NULL;
+ ret = g_variant_parse(g_variant_type_new("a(ia(sv))"), "[]", NULL, NULL, NULL);
+ if (error != NULL) {
+ g_warning("Unable to parse '[]' as a 'a(ia(sv))': %s", error->message);
+ g_error_free(error);
+ ret = NULL;
+ }
+ }
- g_variant_builder_init(&builder, G_VARIANT_TYPE_TUPLE);
- g_variant_builder_add_value(&builder, ret);
- GVariant * final = g_variant_builder_end(&builder);
+ GVariant * final = NULL;
+ if (ret != NULL) {
+ g_variant_builder_init(&builder, G_VARIANT_TYPE_TUPLE);
+ g_variant_builder_add_value(&builder, ret);
+ final = g_variant_builder_end(&builder);
+ } else {
+ g_warning("Error building property list, final variant is NULL");
+ }
g_dbus_method_invocation_return_value(invocation, final);
@@ -981,7 +1009,13 @@
ret = g_variant_new("(a(ia{svg}))", g_variant_builder_end(&builder));
} else {
- ret = g_variant_parse(g_variant_type_new("(a(ia{sv}))"), "([(0, {})],)", NULL, NULL, NULL);
+ GError * error = NULL;
+ ret = g_variant_parse(g_variant_type_new("(a(ia{sv}))"), "([(0, {})],)", NULL, NULL, &error);
+ if (error != NULL) {
+ g_warning("Unable to parse '([(0, {})],)' as a '(a(ia{sv}))': %s", error->message);
+ g_error_free(error);
+ ret = NULL;
+ }
}
g_dbus_method_invocation_return_value(invocation, ret);
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