sd-bus: properly match ID changes
If the caller does not specify arg1 for NameOwnerChanged matches, we really must take the ID from arg2 or arg3, if provided. They are guaranteed to be identical to arg1 if either is supplied, but there is no strict requiredment that arg1 is supplied. Hence, make sure to always take the more restrictive match. Otherwise, we install rather wide matches without anyone requiring them.
This commit is contained in:
parent
1af5f746d5
commit
1845880757
|
@ -1187,6 +1187,8 @@ static int add_name_change_match(sd_bus *bus,
|
|||
* match against added ids */
|
||||
if (!old_owner || old_owner[0] == 0) {
|
||||
item->type = KDBUS_ITEM_ID_ADD;
|
||||
if (!isempty(new_owner))
|
||||
item->id_change.id = new_owner_id;
|
||||
|
||||
r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
|
||||
if (r < 0)
|
||||
|
@ -1197,6 +1199,8 @@ static int add_name_change_match(sd_bus *bus,
|
|||
* match against removed ids */
|
||||
if (!new_owner || new_owner[0] == 0) {
|
||||
item->type = KDBUS_ITEM_ID_REMOVE;
|
||||
if (!isempty(old_owner))
|
||||
item->id_change.id = old_owner_id;
|
||||
|
||||
r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
|
||||
if (r < 0)
|
||||
|
|
Loading…
Reference in a new issue