void
_dbus_loop_remove_watch (DBusLoop *loop,
DBusWatch *watch,
DBusWatchFunction function,
void *data)
{
DBusList *link;
link = _dbus_list_get_first_link (&loop->callbacks);
while (link != NULL)
{
DBusList *next = _dbus_list_get_next_link (&loop->callbacks, link);
Callback *this = link->data;
if (this->type == CALLBACK_WATCH &&
WATCH_CALLBACK (this)->watch == watch &&
this->data == data &&
WATCH_CALLBACK (this)->function == function)
{
remove_callback (loop, link);
return;
}
link = next;
}
_dbus_warn ("could not find watch %p function %p data %p to remove\n",
watch, (void *)function, data);
}
dbus_bool_t
bus_service_list_queued_owners (BusService *service,
DBusList **return_list,
DBusError *error)
{
DBusList *link;
_dbus_assert (*return_list == NULL);
link = _dbus_list_get_first_link (&service->owners);
_dbus_assert (link != NULL);
while (link != NULL)
{
BusOwner *owner;
const char *uname;
owner = (BusOwner *) link->data;
uname = bus_connection_get_name (owner->conn);
if (!_dbus_list_append (return_list, (char *)uname))
goto oom;
link = _dbus_list_get_next_link (&service->owners, link);
}
return TRUE;
oom:
_dbus_list_clear (return_list);
BUS_SET_OOM (error);
return FALSE;
}
static int
do_expiration_with_monotonic_time (BusExpireList *list,
long tv_sec,
long tv_usec)
{
DBusList *link;
int next_interval, min_wait_time, items_to_expire;
next_interval = -1;
min_wait_time = 3600 * 1000; /* this is reset anyway if used */
items_to_expire = 0;
link = _dbus_list_get_first_link (&list->items);
while (link != NULL)
{
DBusList *next = _dbus_list_get_next_link (&list->items, link);
double elapsed;
BusExpireItem *item;
item = link->data;
elapsed = ELAPSED_MILLISECONDS_SINCE (item->added_tv_sec,
item->added_tv_usec,
tv_sec, tv_usec);
if (((item->added_tv_sec == 0) && (item->added_tv_usec == 0)) ||
((list->expire_after > 0) && (elapsed >= (double) list->expire_after)))
{
_dbus_verbose ("Expiring an item %p\n", item);
/* If the expire function fails, we just end up expiring
* this item next time we walk through the list. This would
* be an indeterminate time normally, so we set up the
* next_interval to be "shortly" (just enough to avoid
* a busy loop)
*/
if (!(* list->expire_func) (list, link, list->data))
{
next_interval = _dbus_get_oom_wait ();
break;
}
}
else if (list->expire_after > 0)
{
double to_wait;
items_to_expire = 1;
to_wait = (double) list->expire_after - elapsed;
if (min_wait_time > to_wait)
min_wait_time = to_wait;
}
link = next;
}
if (next_interval < 0 && items_to_expire)
next_interval = min_wait_time;
return next_interval;
}
void
_dbus_loop_remove_timeout (DBusLoop *loop,
DBusTimeout *timeout,
DBusTimeoutFunction function,
void *data)
{
DBusList *link;
link = _dbus_list_get_first_link (&loop->callbacks);
while (link != NULL)
{
DBusList *next = _dbus_list_get_next_link (&loop->callbacks, link);
Callback *this = link->data;
if (this->type == CALLBACK_TIMEOUT &&
TIMEOUT_CALLBACK (this)->timeout == timeout &&
this->data == data &&
TIMEOUT_CALLBACK (this)->function == function)
{
remove_callback (loop, link);
return;
}
link = next;
}
_dbus_warn ("could not find timeout %p function %p data %p to remove\n",
timeout, (void *)function, data);
}
static dbus_bool_t
add_list_to_client (DBusList **list,
BusClientPolicy *client)
{
DBusList *link;
link = _dbus_list_get_first_link (list);
while (link != NULL)
{
BusPolicyRule *rule = link->data;
link = _dbus_list_get_next_link (list, link);
switch (rule->type)
{
case BUS_POLICY_RULE_USER:
case BUS_POLICY_RULE_GROUP:
/* These aren't per-connection policies */
break;
case BUS_POLICY_RULE_OWN:
case BUS_POLICY_RULE_SEND:
case BUS_POLICY_RULE_RECEIVE:
/* These are per-connection */
if (!bus_client_policy_append_rule (client, rule))
return FALSE;
break;
}
}
return TRUE;
}
static dbus_bool_t
list_allows_user (dbus_bool_t def,
DBusList **list,
unsigned long uid,
const unsigned long *group_ids,
int n_group_ids)
{
DBusList *link;
dbus_bool_t allowed;
allowed = def;
link = _dbus_list_get_first_link (list);
while (link != NULL)
{
BusPolicyRule *rule = link->data;
link = _dbus_list_get_next_link (list, link);
if (rule->type == BUS_POLICY_RULE_USER)
{
_dbus_verbose ("List %p user rule uid="DBUS_UID_FORMAT"\n",
list, rule->d.user.uid);
if (rule->d.user.uid == DBUS_UID_UNSET)
; /* '*' wildcard */
else if (rule->d.user.uid != uid)
continue;
}
else if (rule->type == BUS_POLICY_RULE_GROUP)
{
_dbus_verbose ("List %p group rule uid="DBUS_UID_FORMAT"\n",
list, rule->d.user.uid);
if (rule->d.group.gid == DBUS_GID_UNSET)
; /* '*' wildcard */
else
{
int i;
i = 0;
while (i < n_group_ids)
{
if (rule->d.group.gid == group_ids[i])
break;
++i;
}
if (i == n_group_ids)
continue;
}
}
else
continue;
allowed = rule->allow;
}
return allowed;
}
static int
do_expiration_with_current_time (BusExpireList *list,
long tv_sec,
long tv_usec)
{
DBusList *link;
int next_interval;
next_interval = -1;
link = _dbus_list_get_first_link (&list->items);
while (link != NULL)
{
DBusList *next = _dbus_list_get_next_link (&list->items, link);
double elapsed;
BusExpireItem *item;
item = link->data;
elapsed = ELAPSED_MILLISECONDS_SINCE (item->added_tv_sec,
item->added_tv_usec,
tv_sec, tv_usec);
if (elapsed >= (double) list->expire_after)
{
_dbus_verbose ("Expiring an item %p\n", item);
/* If the expire function fails, we just end up expiring
* this item next time we walk through the list. This would
* be an indeterminate time normally, so we set up the
* next_interval to be "shortly" (just enough to avoid
* a busy loop)
*/
if (!(* list->expire_func) (list, link, list->data))
{
next_interval = _dbus_get_oom_wait ();
break;
}
}
else
{
/* We can end the loop, since the connections are in oldest-first order */
next_interval = ((double)list->expire_after) - elapsed;
_dbus_verbose ("Item %p expires in %d milliseconds\n",
item, next_interval);
break;
}
link = next;
}
return next_interval;
}
/**
* Sets all watches to the given enabled state, invoking the
* application's DBusWatchToggledFunction if appropriate.
*
* @param watch_list the watch list.
* @param enabled #TRUE to enable
*/
void
_dbus_watch_list_toggle_all_watches (DBusWatchList *watch_list,
dbus_bool_t enabled)
{
DBusList *link;
for (link = _dbus_list_get_first_link (&watch_list->watches);
link != NULL;
link = _dbus_list_get_next_link (&watch_list->watches, link))
{
_dbus_watch_list_toggle_watch (watch_list, link->data, enabled);
}
}
/**
* Removes the first link in the list and returns it. This is a
* constant-time operation.
*
* @param list address of the list head.
* @returns the first link in the list, or #NULL for an empty list.
*/
DBusList*
_dbus_list_pop_first_link (DBusList **list)
{
DBusList *link;
link = _dbus_list_get_first_link (list);
if (link == NULL)
return NULL;
_dbus_list_unlink (list, link);
return link;
}
dbus_bool_t
bus_service_get_allow_replacement (BusService *service)
{
BusOwner *owner;
DBusList *link;
_dbus_assert (service->owners != NULL);
link = _dbus_list_get_first_link (&service->owners);
owner = (BusOwner *) link->data;
return owner->allow_replacement;
}
static dbus_bool_t
add_restore_ownership_to_transaction (BusTransaction *transaction,
BusService *service,
BusOwner *owner)
{
OwnershipRestoreData *d;
DBusList *link;
d = dbus_new (OwnershipRestoreData, 1);
if (d == NULL)
return FALSE;
d->service = service;
d->owner = owner;
d->service_link = _dbus_list_alloc_link (service);
d->owner_link = _dbus_list_alloc_link (owner);
d->hash_entry = _dbus_hash_table_preallocate_entry (service->registry->service_hash);
bus_service_ref (d->service);
bus_owner_ref (d->owner);
dbus_connection_ref (d->owner->conn);
d->before_owner = NULL;
link = _dbus_list_get_first_link (&service->owners);
while (link != NULL)
{
if (link->data == owner)
{
link = _dbus_list_get_next_link (&service->owners, link);
if (link)
d->before_owner = link->data;
break;
}
link = _dbus_list_get_next_link (&service->owners, link);
}
if (d->service_link == NULL ||
d->owner_link == NULL ||
d->hash_entry == NULL ||
!bus_transaction_add_cancel_hook (transaction, restore_ownership, d,
free_ownership_restore_data))
{
free_ownership_restore_data (d);
return FALSE;
}
return TRUE;
}
static dbus_bool_t
lists_equal (DBusList **list1,
DBusList **list2)
{
DBusList *link1;
DBusList *link2;
link1 = _dbus_list_get_first_link (list1);
link2 = _dbus_list_get_first_link (list2);
while (link1 && link2)
{
if (link1->data != link2->data)
return FALSE;
link1 = _dbus_list_get_next_link (list1, link1);
link2 = _dbus_list_get_next_link (list2, link2);
}
if (link1 || link2)
return FALSE;
return TRUE;
}
/**
* Removes the first value in the list and returns it. This is a
* constant-time operation.
*
* @param list address of the list head.
* @returns the first data in the list, or #NULL for an empty list.
*/
void*
_dbus_list_pop_first (DBusList **list)
{
DBusList *link;
void *data;
link = _dbus_list_get_first_link (list);
if (link == NULL)
return NULL;
data = link->data;
_dbus_list_remove_link (list, link);
return data;
}
static void
restore_ownership (void *data)
{
OwnershipRestoreData *d = data;
DBusList *link;
_dbus_assert (d->service_link != NULL);
_dbus_assert (d->owner_link != NULL);
if (d->service->owners == NULL)
{
_dbus_assert (d->hash_entry != NULL);
bus_service_relink (d->service, d->hash_entry);
}
else
{
_dbus_assert (d->hash_entry == NULL);
}
/* We don't need to send messages notifying of these
* changes, since we're reverting something that was
* cancelled (effectively never really happened)
*/
link = _dbus_list_get_first_link (&d->service->owners);
while (link != NULL)
{
if (link->data == d->before_owner)
break;
link = _dbus_list_get_next_link (&d->service->owners, link);
}
_dbus_list_insert_before_link (&d->service->owners, link, d->owner_link);
/* Note that removing then restoring this changes the order in which
* ServiceDeleted messages are sent on destruction of the
* connection. This should be OK as the only guarantee there is
* that the base service is destroyed last, and we never even
* tentatively remove the base service.
*/
bus_connection_add_owned_service_link (d->owner->conn, d->service_link);
d->hash_entry = NULL;
d->service_link = NULL;
d->owner_link = NULL;
}
static dbus_bool_t
all_odd_values (DBusList **list)
{
DBusList *link;
link = _dbus_list_get_first_link (list);
while (link != NULL)
{
int v = _DBUS_POINTER_TO_INT (link->data);
if ((v % 2) == 0)
return FALSE;
link = _dbus_list_get_next_link (list, link);
}
return TRUE;
}
void
bus_test_clients_foreach (BusConnectionForeachFunction function,
void *data)
{
DBusList *link;
link = _dbus_list_get_first_link (&clients);
while (link != NULL)
{
DBusConnection *connection = link->data;
DBusList *next = _dbus_list_get_next_link (&clients, link);
if (!(* function) (connection, data))
break;
link = next;
}
}
dbus_bool_t
bus_test_client_listed (DBusConnection *connection)
{
DBusList *link;
link = _dbus_list_get_first_link (&clients);
while (link != NULL)
{
DBusConnection *c = link->data;
DBusList *next = _dbus_list_get_next_link (&clients, link);
if (c == connection)
return TRUE;
link = next;
}
return FALSE;
}
static DBusList *
_bus_service_find_owner_link (BusService *service,
DBusConnection *connection)
{
DBusList *link;
link = _dbus_list_get_first_link (&service->owners);
while (link != NULL)
{
BusOwner *bus_owner;
bus_owner = (BusOwner *) link->data;
if (bus_owner->conn == connection)
break;
link = _dbus_list_get_next_link (&service->owners, link);
}
return link;
}
static dbus_bool_t
is_descending_sequence (DBusList **list)
{
DBusList *link;
int prev;
prev = _DBUS_INT_MAX;
link = _dbus_list_get_first_link (list);
while (link != NULL)
{
int v = _DBUS_POINTER_TO_INT (link->data);
if (v >= prev)
return FALSE;
prev = v;
link = _dbus_list_get_next_link (list, link);
}
return TRUE;
}
dbus_bool_t
bus_service_swap_owner (BusService *service,
DBusConnection *connection,
BusTransaction *transaction,
DBusError *error)
{
DBusList *swap_link;
BusOwner *primary_owner;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
/* We send out notifications before we do any work we
* might have to undo if the notification-sending failed
*/
/* Send service lost message */
primary_owner = bus_service_get_primary_owner (service);
if (primary_owner == NULL || primary_owner->conn != connection)
_dbus_assert_not_reached ("Tried to swap a non primary owner");
if (!bus_driver_send_service_lost (connection, service->name,
transaction, error))
return FALSE;
if (service->owners == NULL)
{
_dbus_assert_not_reached ("Tried to swap owner of a service that has no owners");
}
else if (_dbus_list_length_is_one (&service->owners))
{
_dbus_assert_not_reached ("Tried to swap owner of a service that has no other owners in the queue");
}
else
{
DBusList *link;
BusOwner *new_owner;
DBusConnection *new_owner_conn;
link = _dbus_list_get_first_link (&service->owners);
_dbus_assert (link != NULL);
link = _dbus_list_get_next_link (&service->owners, link);
_dbus_assert (link != NULL);
new_owner = (BusOwner *)link->data;
new_owner_conn = new_owner->conn;
if (!bus_driver_send_service_owner_changed (service->name,
bus_connection_get_name (connection),
bus_connection_get_name (new_owner_conn),
transaction, error))
return FALSE;
/* This will be our new owner */
if (!bus_driver_send_service_acquired (new_owner_conn,
service->name,
transaction,
error))
return FALSE;
}
if (!add_restore_ownership_to_transaction (transaction, service, primary_owner))
{
BUS_SET_OOM (error);
return FALSE;
}
/* unlink the primary and make it the second link */
swap_link = _dbus_list_get_first_link (&service->owners);
_dbus_list_unlink (&service->owners, swap_link);
_dbus_list_insert_after_link (&service->owners,
_dbus_list_get_first_link (&service->owners),
swap_link);
return TRUE;
}
void
bus_set_watched_dirs (BusContext *context, DBusList **directories)
{
int new_fds[MAX_DIRS_TO_WATCH];
char *new_dirs[MAX_DIRS_TO_WATCH];
DBusList *link;
int i, j, fd;
struct kevent ev;
#ifdef O_CLOEXEC
dbus_bool_t cloexec_done = 0;
#endif
if (!_init_kqueue (context))
goto out;
for (i = 0; i < MAX_DIRS_TO_WATCH; i++)
{
new_fds[i] = -1;
new_dirs[i] = NULL;
}
i = 0;
link = _dbus_list_get_first_link (directories);
while (link != NULL)
{
new_dirs[i++] = (char *)link->data;
link = _dbus_list_get_next_link (directories, link);
}
/* Look for directories in both the old and new sets, if
* we find one, move its data into the new set.
*/
for (i = 0; new_dirs[i]; i++)
{
for (j = 0; j < num_fds; j++)
{
if (dirs[j] && strcmp (new_dirs[i], dirs[j]) == 0)
{
new_fds[i] = fds[j];
new_dirs[i] = dirs[j];
fds[j] = -1;
dirs[j] = NULL;
break;
}
}
}
/* Any directory we find in "fds" with a nonzero fd must
* not be in the new set, so perform cleanup now.
*/
for (j = 0; j < num_fds; j++)
{
if (fds[j] != -1)
{
close (fds[j]);
dbus_free (dirs[j]);
fds[j] = -1;
dirs[j] = NULL;
}
}
for (i = 0; new_dirs[i]; i++)
{
if (new_fds[i] == -1)
{
/* FIXME - less lame error handling for failing to add a watch;
* we may need to sleep.
*/
#ifdef O_CLOEXEC
fd = open (new_dirs[i], O_RDONLY | O_CLOEXEC);
cloexec_done = (fd >= 0);
if (fd < 0 && errno == EINVAL)
#endif
{
fd = open (new_dirs[i], O_RDONLY);
}
if (fd < 0)
{
if (errno != ENOENT)
{
_dbus_warn ("Cannot open directory '%s'; error '%s'\n", new_dirs[i], _dbus_strerror (errno));
goto out;
}
else
{
new_fds[i] = -1;
new_dirs[i] = NULL;
continue;
}
}
#ifdef O_CLOEXEC
if (!cloexec_done)
#endif
{
_dbus_fd_set_close_on_exec (fd);
}
EV_SET (&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
NOTE_DELETE | NOTE_EXTEND | NOTE_WRITE | NOTE_RENAME, 0, 0);
if (kevent (kq, &ev, 1, NULL, 0, NULL) == -1)
{
_dbus_warn ("Cannot setup a kevent for '%s'; error '%s'\n", new_dirs[i], _dbus_strerror (errno));
close (fd);
goto out;
}
new_fds[i] = fd;
new_dirs[i] = _dbus_strdup (new_dirs[i]);
if (!new_dirs[i])
{
/* FIXME have less lame handling for OOM, we just silently fail to
* watch. (In reality though, the whole OOM handling in dbus is
* stupid but we won't go into that in this comment =) )
*/
close (fd);
new_fds[i] = -1;
}
}
}
num_fds = i;
for (i = 0; i < MAX_DIRS_TO_WATCH; i++)
{
fds[i] = new_fds[i];
dirs[i] = new_dirs[i];
}
out:
;
}
/**
* Sets the watch functions. This function is the "backend"
* for dbus_connection_set_watch_functions() and
* dbus_server_set_watch_functions().
*
* @param watch_list the watch list.
* @param add_function the add watch function.
* @param remove_function the remove watch function.
* @param toggled_function function on toggling enabled flag, or #NULL
* @param data the data for those functions.
* @param free_data_function the function to free the data.
* @returns #FALSE if not enough memory
*
*/
dbus_bool_t
_dbus_watch_list_set_functions (DBusWatchList *watch_list,
DBusAddWatchFunction add_function,
DBusRemoveWatchFunction remove_function,
DBusWatchToggledFunction toggled_function,
void *data,
DBusFreeFunction free_data_function)
{
/* Add watches with the new watch function, failing on OOM */
if (add_function != NULL)
{
DBusList *link;
link = _dbus_list_get_first_link (&watch_list->watches);
while (link != NULL)
{
DBusList *next = _dbus_list_get_next_link (&watch_list->watches,
link);
#ifdef DBUS_ENABLE_VERBOSE_MODE
{
const char *watch_type;
int flags;
flags = dbus_watch_get_flags (link->data);
if ((flags & DBUS_WATCH_READABLE) &&
(flags & DBUS_WATCH_WRITABLE))
watch_type = "readwrite";
else if (flags & DBUS_WATCH_READABLE)
watch_type = "read";
else if (flags & DBUS_WATCH_WRITABLE)
watch_type = "write";
else
watch_type = "not read or write";
_dbus_verbose ("Adding a %s watch on fd %d using newly-set add watch function\n",
watch_type,
dbus_watch_get_socket (link->data));
}
#endif /* DBUS_ENABLE_VERBOSE_MODE */
if (!(* add_function) (link->data, data))
{
/* remove it all again and return FALSE */
DBusList *link2;
link2 = _dbus_list_get_first_link (&watch_list->watches);
while (link2 != link)
{
DBusList *next = _dbus_list_get_next_link (&watch_list->watches,
link2);
_dbus_verbose ("Removing watch on fd %d using newly-set remove function because initial add failed\n",
dbus_watch_get_socket (link2->data));
(* remove_function) (link2->data, data);
link2 = next;
}
return FALSE;
}
link = next;
}
}
/* Remove all current watches from previous watch handlers */
if (watch_list->remove_watch_function != NULL)
{
_dbus_verbose ("Removing all pre-existing watches\n");
_dbus_list_foreach (&watch_list->watches,
(DBusForeachFunction) watch_list->remove_watch_function,
watch_list->watch_data);
}
if (watch_list->watch_free_data_function != NULL)
(* watch_list->watch_free_data_function) (watch_list->watch_data);
watch_list->add_watch_function = add_function;
watch_list->remove_watch_function = remove_function;
watch_list->watch_toggled_function = toggled_function;
watch_list->watch_data = data;
watch_list->watch_free_data_function = free_data_function;
return TRUE;
}
/* this function is self-cancelling if you cancel the transaction */
dbus_bool_t
bus_service_add_owner (BusService *service,
DBusConnection *connection,
dbus_uint32_t flags,
BusTransaction *transaction,
DBusError *error)
{
BusOwner *bus_owner;
DBusList *bus_owner_link;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
/* Send service acquired message first, OOM will result
* in cancelling the transaction
*/
if (service->owners == NULL)
{
if (!bus_driver_send_service_acquired (connection, service->name, transaction, error))
return FALSE;
}
bus_owner_link = _bus_service_find_owner_link (service, connection);
if (bus_owner_link == NULL)
{
bus_owner = bus_owner_new (service, connection, flags);
if (bus_owner == NULL)
{
BUS_SET_OOM (error);
return FALSE;
}
bus_owner_set_flags (bus_owner, flags);
if (!(flags & DBUS_NAME_FLAG_REPLACE_EXISTING) || service->owners == NULL)
{
if (!_dbus_list_append (&service->owners,
bus_owner))
{
bus_owner_unref (bus_owner);
BUS_SET_OOM (error);
return FALSE;
}
}
else
{
if (!_dbus_list_insert_after (&service->owners,
_dbus_list_get_first_link (&service->owners),
bus_owner))
{
bus_owner_unref (bus_owner);
BUS_SET_OOM (error);
return FALSE;
}
}
}
else
{
/* Update the link since we are already in the queue
* No need for operations that can produce OOM
*/
bus_owner = (BusOwner *) bus_owner_link->data;
if (flags & DBUS_NAME_FLAG_REPLACE_EXISTING)
{
DBusList *link;
_dbus_list_unlink (&service->owners, bus_owner_link);
link = _dbus_list_get_first_link (&service->owners);
_dbus_assert (link != NULL);
_dbus_list_insert_after_link (&service->owners, link, bus_owner_link);
}
bus_owner_set_flags (bus_owner, flags);
return TRUE;
}
if (!add_cancel_ownership_to_transaction (transaction,
service,
bus_owner))
{
bus_service_unlink_owner (service, bus_owner);
BUS_SET_OOM (error);
return FALSE;
}
return TRUE;
}
static dbus_bool_t
test_command_line (const char *arg1, ...)
{
int i, original_argc, shell_argc;
char **shell_argv;
char **original_argv;
char *command_line, *tmp;
DBusString str;
DBusList *list = NULL, *node;
va_list var_args;
DBusError error;
va_start (var_args, arg1);
_dbus_list_append (&list, (char *)arg1);
do
{
tmp = va_arg (var_args, char *);
if (!tmp)
break;
_dbus_list_append (&list, tmp);
} while (tmp);
va_end (var_args);
original_argc = _dbus_list_get_length (&list);
original_argv = dbus_new (char *, original_argc);
_dbus_string_init (&str);
for (i = 0, node = _dbus_list_get_first_link (&list); i < original_argc && node;
i++, node = _dbus_list_get_next_link (&list, node))
{
original_argv[i] = node->data;
if (i > 0)
_dbus_string_append_byte (&str, ' ');
_dbus_string_append (&str, original_argv[i]);
}
_dbus_list_clear (&list);
command_line = _dbus_string_get_data (&str);
printf ("\n\nTesting command line '%s'\n", command_line);
dbus_error_init (&error);
if (!_dbus_shell_parse_argv (command_line, &shell_argc, &shell_argv, &error))
{
fprintf (stderr, "Error parsing command line: %s\n", error.message ? error.message : "");
return FALSE;
}
else
{
if (shell_argc != original_argc)
{
printf ("Number of arguments returned (%d) don't match original (%d)\n",
shell_argc, original_argc);
return FALSE;
}
printf ("Number of arguments: %d\n", shell_argc);
for (i = 0; i < shell_argc; i++)
{
char *unquoted;
unquoted = _dbus_shell_unquote (original_argv[i]);
if (strcmp (unquoted ? unquoted : "",
shell_argv[i] ? shell_argv[i] : ""))
{
printf ("Position %d, returned argument (%s) does not match original (%s)\n",
i, shell_argv[i], unquoted);
dbus_free (unquoted);
return FALSE;
}
dbus_free (unquoted);
if (shell_argv[i])
printf ("Argument %d = %s\n", i, shell_argv[i]);
}
dbus_free_string_array (shell_argv);
}
_dbus_string_free (&str);
return TRUE;
}
static BusDesktopFile *
desktop_file_for_name (BusConfigParser *parser,
const char *name,
DBusError *error)
{
BusDesktopFile *desktop_file;
DBusList **service_dirs;
DBusList *link;
DBusError tmp_error;
DBusString full_path;
DBusString filename;
const char *dir;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
desktop_file = NULL;
if (!_dbus_string_init (&filename))
{
BUS_SET_OOM (error);
goto out_all;
}
if (!_dbus_string_init (&full_path))
{
BUS_SET_OOM (error);
goto out_filename;
}
if (!_dbus_string_append (&filename, name) ||
!_dbus_string_append (&filename, ".service"))
{
BUS_SET_OOM (error);
goto out;
}
service_dirs = bus_config_parser_get_service_dirs (parser);
for (link = _dbus_list_get_first_link (service_dirs);
link != NULL;
link = _dbus_list_get_next_link (service_dirs, link))
{
dir = link->data;
_dbus_verbose ("Looking at '%s'\n", dir);
dbus_error_init (&tmp_error);
/* clear the path from last time */
_dbus_string_set_length (&full_path, 0);
/* build the full path */
if (!_dbus_string_append (&full_path, dir) ||
!_dbus_concat_dir_and_file (&full_path, &filename))
{
BUS_SET_OOM (error);
goto out;
}
_dbus_verbose ("Trying to load file '%s'\n", _dbus_string_get_data (&full_path));
desktop_file = bus_desktop_file_load (&full_path, &tmp_error);
if (desktop_file == NULL)
{
_DBUS_ASSERT_ERROR_IS_SET (&tmp_error);
_dbus_verbose ("Could not load %s: %s: %s\n",
_dbus_string_get_const_data (&full_path),
tmp_error.name, tmp_error.message);
/* we may have failed if the file is not found; this is not fatal */
if (dbus_error_has_name (&tmp_error, DBUS_ERROR_NO_MEMORY))
{
dbus_move_error (&tmp_error, error);
/* we only bail out on OOM */
goto out;
}
dbus_error_free (&tmp_error);
}
/* did we find the desktop file we want? */
if (desktop_file != NULL)
break;
}
/* Didn't find desktop file; set error */
if (desktop_file == NULL)
{
dbus_set_error (error, DBUS_ERROR_SPAWN_SERVICE_NOT_FOUND,
"The name %s was not provided by any .service files",
name);
}
out:
_dbus_string_free (&full_path);
out_filename:
_dbus_string_free (&filename);
out_all:
return desktop_file;
}
/**
* @ingroup DBusListInternals
* Unit test for DBusList
* @returns #TRUE on success.
*/
dbus_bool_t
_dbus_list_test (void)
{
DBusList *list1;
DBusList *list2;
DBusList *link1;
DBusList *link2;
DBusList *copy1;
DBusList *copy2;
int i;
list1 = NULL;
list2 = NULL;
/* Test append and prepend */
i = 0;
while (i < 10)
{
if (!_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i)))
_dbus_assert_not_reached ("could not allocate for append");
if (!_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i)))
_dbus_assert_not_reached ("count not allocate for prepend");
++i;
verify_list (&list1);
verify_list (&list2);
_dbus_assert (_dbus_list_get_length (&list1) == i);
_dbus_assert (_dbus_list_get_length (&list2) == i);
}
_dbus_assert (is_ascending_sequence (&list1));
_dbus_assert (is_descending_sequence (&list2));
/* Test list clear */
_dbus_list_clear (&list1);
_dbus_list_clear (&list2);
verify_list (&list1);
verify_list (&list2);
/* Test get_first, get_last, pop_first, pop_last */
i = 0;
while (i < 10)
{
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i));
_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i));
++i;
}
--i;
while (i >= 0)
{
void *got_data1;
void *got_data2;
void *data1;
void *data2;
got_data1 = _dbus_list_get_last (&list1);
got_data2 = _dbus_list_get_first (&list2);
data1 = _dbus_list_pop_last (&list1);
data2 = _dbus_list_pop_first (&list2);
_dbus_assert (got_data1 == data1);
_dbus_assert (got_data2 == data2);
_dbus_assert (_DBUS_POINTER_TO_INT (data1) == i);
_dbus_assert (_DBUS_POINTER_TO_INT (data2) == i);
verify_list (&list1);
verify_list (&list2);
_dbus_assert (is_ascending_sequence (&list1));
_dbus_assert (is_descending_sequence (&list2));
--i;
}
_dbus_assert (list1 == NULL);
_dbus_assert (list2 == NULL);
/* Test get_first_link, get_last_link, pop_first_link, pop_last_link */
i = 0;
while (i < 10)
{
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i));
_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i));
++i;
}
--i;
while (i >= 0)
{
DBusList *got_link1;
DBusList *got_link2;
DBusList *link1;
DBusList *link2;
void *data1;
void *data2;
got_link1 = _dbus_list_get_last_link (&list1);
got_link2 = _dbus_list_get_first_link (&list2);
link1 = _dbus_list_pop_last_link (&list1);
link2 = _dbus_list_pop_first_link (&list2);
_dbus_assert (got_link1 == link1);
_dbus_assert (got_link2 == link2);
data1 = link1->data;
data2 = link2->data;
_dbus_list_free_link (link1);
_dbus_list_free_link (link2);
_dbus_assert (_DBUS_POINTER_TO_INT (data1) == i);
_dbus_assert (_DBUS_POINTER_TO_INT (data2) == i);
verify_list (&list1);
verify_list (&list2);
_dbus_assert (is_ascending_sequence (&list1));
_dbus_assert (is_descending_sequence (&list2));
--i;
}
_dbus_assert (list1 == NULL);
_dbus_assert (list2 == NULL);
/* Test iteration */
i = 0;
while (i < 10)
{
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i));
_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i));
++i;
verify_list (&list1);
verify_list (&list2);
_dbus_assert (_dbus_list_get_length (&list1) == i);
_dbus_assert (_dbus_list_get_length (&list2) == i);
}
_dbus_assert (is_ascending_sequence (&list1));
_dbus_assert (is_descending_sequence (&list2));
--i;
link2 = _dbus_list_get_first_link (&list2);
while (link2 != NULL)
{
verify_list (&link2); /* pretend this link is the head */
_dbus_assert (_DBUS_POINTER_TO_INT (link2->data) == i);
link2 = _dbus_list_get_next_link (&list2, link2);
--i;
}
i = 0;
link1 = _dbus_list_get_first_link (&list1);
while (link1 != NULL)
{
verify_list (&link1); /* pretend this link is the head */
_dbus_assert (_DBUS_POINTER_TO_INT (link1->data) == i);
link1 = _dbus_list_get_next_link (&list1, link1);
++i;
}
--i;
link1 = _dbus_list_get_last_link (&list1);
while (link1 != NULL)
{
verify_list (&link1); /* pretend this link is the head */
_dbus_assert (_DBUS_POINTER_TO_INT (link1->data) == i);
link1 = _dbus_list_get_prev_link (&list1, link1);
--i;
}
_dbus_list_clear (&list1);
_dbus_list_clear (&list2);
/* Test remove */
i = 0;
while (i < 10)
{
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i));
_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i));
++i;
}
--i;
while (i >= 0)
{
if ((i % 2) == 0)
{
if (!_dbus_list_remove (&list1, _DBUS_INT_TO_POINTER (i)))
_dbus_assert_not_reached ("element should have been in list");
if (!_dbus_list_remove (&list2, _DBUS_INT_TO_POINTER (i)))
_dbus_assert_not_reached ("element should have been in list");
verify_list (&list1);
verify_list (&list2);
}
--i;
}
_dbus_assert (all_odd_values (&list1));
_dbus_assert (all_odd_values (&list2));
_dbus_list_clear (&list1);
_dbus_list_clear (&list2);
/* test removing the other half of the elements */
i = 0;
while (i < 10)
{
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i));
_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i));
++i;
}
--i;
while (i >= 0)
{
if ((i % 2) != 0)
{
if (!_dbus_list_remove (&list1, _DBUS_INT_TO_POINTER (i)))
_dbus_assert_not_reached ("element should have been in list");
if (!_dbus_list_remove (&list2, _DBUS_INT_TO_POINTER (i)))
_dbus_assert_not_reached ("element should have been in list");
verify_list (&list1);
verify_list (&list2);
}
--i;
}
_dbus_assert (all_even_values (&list1));
_dbus_assert (all_even_values (&list2));
/* clear list using remove_link */
while (list1 != NULL)
{
_dbus_list_remove_link (&list1, list1);
verify_list (&list1);
}
while (list2 != NULL)
{
_dbus_list_remove_link (&list2, list2);
verify_list (&list2);
}
/* Test remove link more generally */
i = 0;
while (i < 10)
{
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i));
_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i));
++i;
}
--i;
link2 = _dbus_list_get_first_link (&list2);
while (link2 != NULL)
{
DBusList *next = _dbus_list_get_next_link (&list2, link2);
_dbus_assert (_DBUS_POINTER_TO_INT (link2->data) == i);
if ((i % 2) == 0)
_dbus_list_remove_link (&list2, link2);
verify_list (&list2);
link2 = next;
--i;
}
_dbus_assert (all_odd_values (&list2));
_dbus_list_clear (&list2);
i = 0;
link1 = _dbus_list_get_first_link (&list1);
while (link1 != NULL)
{
DBusList *next = _dbus_list_get_next_link (&list1, link1);
_dbus_assert (_DBUS_POINTER_TO_INT (link1->data) == i);
if ((i % 2) != 0)
_dbus_list_remove_link (&list1, link1);
verify_list (&list1);
link1 = next;
++i;
}
_dbus_assert (all_even_values (&list1));
_dbus_list_clear (&list1);
/* Test copying a list */
i = 0;
while (i < 10)
{
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (i));
_dbus_list_prepend (&list2, _DBUS_INT_TO_POINTER (i));
++i;
}
/* bad pointers, because they are allowed in the copy dest */
copy1 = _DBUS_INT_TO_POINTER (0x342234);
copy2 = _DBUS_INT_TO_POINTER (23);
_dbus_list_copy (&list1, ©1);
verify_list (&list1);
verify_list (©1);
_dbus_assert (lists_equal (&list1, ©1));
_dbus_list_copy (&list2, ©2);
verify_list (&list2);
verify_list (©2);
_dbus_assert (lists_equal (&list2, ©2));
/* Now test copying empty lists */
_dbus_list_clear (&list1);
_dbus_list_clear (&list2);
_dbus_list_clear (©1);
_dbus_list_clear (©2);
/* bad pointers, because they are allowed in the copy dest */
copy1 = _DBUS_INT_TO_POINTER (0x342234);
copy2 = _DBUS_INT_TO_POINTER (23);
_dbus_list_copy (&list1, ©1);
verify_list (&list1);
verify_list (©1);
_dbus_assert (lists_equal (&list1, ©1));
_dbus_list_copy (&list2, ©2);
verify_list (&list2);
verify_list (©2);
_dbus_assert (lists_equal (&list2, ©2));
_dbus_list_clear (&list1);
_dbus_list_clear (&list2);
/* insert_before on empty list */
_dbus_list_insert_before (&list1, NULL,
_DBUS_INT_TO_POINTER (0));
verify_list (&list1);
/* inserting before first element */
_dbus_list_insert_before (&list1, list1,
_DBUS_INT_TO_POINTER (2));
verify_list (&list1);
_dbus_assert (is_descending_sequence (&list1));
/* inserting in the middle */
_dbus_list_insert_before (&list1, list1->next,
_DBUS_INT_TO_POINTER (1));
verify_list (&list1);
_dbus_assert (is_descending_sequence (&list1));
/* using insert_before to append */
_dbus_list_insert_before (&list1, NULL,
_DBUS_INT_TO_POINTER (-1));
verify_list (&list1);
_dbus_assert (is_descending_sequence (&list1));
_dbus_list_clear (&list1);
/* insert_after on empty list */
_dbus_list_insert_after (&list1, NULL,
_DBUS_INT_TO_POINTER (0));
verify_list (&list1);
/* inserting after first element */
_dbus_list_insert_after (&list1, list1,
_DBUS_INT_TO_POINTER (1));
verify_list (&list1);
_dbus_assert (is_ascending_sequence (&list1));
/* inserting at the end */
_dbus_list_insert_after (&list1, list1->next,
_DBUS_INT_TO_POINTER (2));
verify_list (&list1);
_dbus_assert (is_ascending_sequence (&list1));
/* using insert_after to prepend */
_dbus_list_insert_after (&list1, NULL,
_DBUS_INT_TO_POINTER (-1));
verify_list (&list1);
_dbus_assert (is_ascending_sequence (&list1));
_dbus_list_clear (&list1);
/* using remove_last */
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (2));
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (1));
_dbus_list_append (&list1, _DBUS_INT_TO_POINTER (3));
_dbus_list_remove_last (&list1, _DBUS_INT_TO_POINTER (2));
verify_list (&list1);
_dbus_assert (is_ascending_sequence (&list1));
_dbus_list_clear (&list1);
return TRUE;
}
/* This code only gets executed the first time the
* config files are parsed. It is not executed
* when config files are reloaded.
*/
static dbus_bool_t
process_config_first_time_only (BusContext *context,
BusConfigParser *parser,
const DBusString *address,
BusContextFlags flags,
DBusError *error)
{
DBusString log_prefix;
DBusList *link;
DBusList **addresses;
const char *user, *pidfile;
char **auth_mechanisms;
DBusList **auth_mechanisms_list;
int len;
dbus_bool_t retval;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
retval = FALSE;
auth_mechanisms = NULL;
pidfile = NULL;
_dbus_init_system_log (TRUE);
if (flags & BUS_CONTEXT_FLAG_SYSTEMD_ACTIVATION)
context->systemd_activation = TRUE;
else
context->systemd_activation = FALSE;
/* Check for an existing pid file. Of course this is a race;
* we'd have to use fcntl() locks on the pid file to
* avoid that. But we want to check for the pid file
* before overwriting any existing sockets, etc.
*/
if (flags & BUS_CONTEXT_FLAG_WRITE_PID_FILE)
pidfile = bus_config_parser_get_pidfile (parser);
if (pidfile != NULL)
{
DBusString u;
DBusStat stbuf;
_dbus_string_init_const (&u, pidfile);
if (_dbus_stat (&u, &stbuf, NULL))
{
#ifdef DBUS_CYGWIN
DBusString p;
long /* int */ pid;
_dbus_string_init (&p);
_dbus_file_get_contents(&p, &u, NULL);
_dbus_string_parse_int(&p, 0, &pid, NULL);
_dbus_string_free(&p);
if ((kill((int)pid, 0))) {
dbus_set_error(NULL, DBUS_ERROR_FILE_EXISTS,
"pid %ld not running, removing stale pid file\n",
pid);
_dbus_delete_file(&u, NULL);
} else {
#endif
dbus_set_error (error, DBUS_ERROR_FAILED,
"The pid file \"%s\" exists, if the message bus is not running, remove this file",
pidfile);
goto failed;
#ifdef DBUS_CYGWIN
}
#endif
}
}
/* keep around the pid filename so we can delete it later */
context->pidfile = _dbus_strdup (pidfile);
/* note that type may be NULL */
context->type = _dbus_strdup (bus_config_parser_get_type (parser));
if (bus_config_parser_get_type (parser) != NULL && context->type == NULL)
goto oom;
user = bus_config_parser_get_user (parser);
if (user != NULL)
{
context->user = _dbus_strdup (user);
if (context->user == NULL)
goto oom;
}
/* Set up the prefix for syslog messages */
if (!_dbus_string_init (&log_prefix))
goto oom;
if (context->type && !strcmp (context->type, "system"))
{
if (!_dbus_string_append (&log_prefix, "[system] "))
goto oom;
}
else if (context->type && !strcmp (context->type, "session"))
{
DBusCredentials *credentials;
credentials = _dbus_credentials_new_from_current_process ();
if (!credentials)
goto oom;
if (!_dbus_string_append (&log_prefix, "[session "))
{
_dbus_credentials_unref (credentials);
goto oom;
}
if (!_dbus_credentials_to_string_append (credentials, &log_prefix))
{
_dbus_credentials_unref (credentials);
goto oom;
}
if (!_dbus_string_append (&log_prefix, "] "))
{
_dbus_credentials_unref (credentials);
goto oom;
}
_dbus_credentials_unref (credentials);
}
if (!_dbus_string_steal_data (&log_prefix, &context->log_prefix))
goto oom;
_dbus_string_free (&log_prefix);
/* Build an array of auth mechanisms */
auth_mechanisms_list = bus_config_parser_get_mechanisms (parser);
len = _dbus_list_get_length (auth_mechanisms_list);
if (len > 0)
{
int i;
auth_mechanisms = dbus_new0 (char*, len + 1);
if (auth_mechanisms == NULL)
goto oom;
i = 0;
link = _dbus_list_get_first_link (auth_mechanisms_list);
while (link != NULL)
{
auth_mechanisms[i] = _dbus_strdup (link->data);
if (auth_mechanisms[i] == NULL)
goto oom;
link = _dbus_list_get_next_link (auth_mechanisms_list, link);
i += 1;
}
}
static dbus_bool_t
bus_driver_handle_list_queued_owners (DBusConnection *connection,
BusTransaction *transaction,
DBusMessage *message,
DBusError *error)
{
const char *text;
DBusList *base_names;
DBusList *link;
DBusString str;
BusRegistry *registry;
BusService *service;
DBusMessage *reply;
DBusMessageIter iter, array_iter;
char *dbus_service_name = DBUS_SERVICE_DBUS;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
registry = bus_connection_get_registry (connection);
base_names = NULL;
text = NULL;
reply = NULL;
if (! dbus_message_get_args (message, error,
DBUS_TYPE_STRING, &text,
DBUS_TYPE_INVALID))
goto failed;
_dbus_string_init_const (&str, text);
service = bus_registry_lookup (registry, &str);
if (service == NULL &&
_dbus_string_equal_c_str (&str, DBUS_SERVICE_DBUS))
{
/* ORG_FREEDESKTOP_DBUS owns itself */
if (! _dbus_list_append (&base_names, dbus_service_name))
goto oom;
}
else if (service == NULL)
{
dbus_set_error (error,
DBUS_ERROR_NAME_HAS_NO_OWNER,
"Could not get owners of name '%s': no such name", text);
goto failed;
}
else
{
if (!bus_service_list_queued_owners (service,
&base_names,
error))
goto failed;
}
_dbus_assert (base_names != NULL);
reply = dbus_message_new_method_return (message);
if (reply == NULL)
goto oom;
dbus_message_iter_init_append (reply, &iter);
if (!dbus_message_iter_open_container (&iter,
DBUS_TYPE_ARRAY,
DBUS_TYPE_STRING_AS_STRING,
&array_iter))
goto oom;
link = _dbus_list_get_first_link (&base_names);
while (link != NULL)
{
char *uname;
_dbus_assert (link->data != NULL);
uname = (char *)link->data;
if (!dbus_message_iter_append_basic (&array_iter,
DBUS_TYPE_STRING,
&uname))
goto oom;
link = _dbus_list_get_next_link (&base_names, link);
}
if (! dbus_message_iter_close_container (&iter, &array_iter))
goto oom;
if (! bus_transaction_send_from_driver (transaction, connection, reply))
goto oom;
dbus_message_unref (reply);
return TRUE;
oom:
BUS_SET_OOM (error);
failed:
_DBUS_ASSERT_ERROR_IS_SET (error);
if (reply)
dbus_message_unref (reply);
if (base_names)
_dbus_list_clear (&base_names);
return FALSE;
}
/**
* Sets the timeout functions. This function is the "backend"
* for dbus_connection_set_timeout_functions().
*
* @param timeout_list the timeout list
* @param add_function the add timeout function.
* @param remove_function the remove timeout function.
* @param toggled_function toggle notify function, or #NULL
* @param data the data for those functions.
* @param free_data_function the function to free the data.
* @returns #FALSE if no memory
*
*/
dbus_bool_t
_dbus_timeout_list_set_functions (DBusTimeoutList *timeout_list,
DBusAddTimeoutFunction add_function,
DBusRemoveTimeoutFunction remove_function,
DBusTimeoutToggledFunction toggled_function,
void *data,
DBusFreeFunction free_data_function)
{
/* Add timeouts with the new function, failing on OOM */
if (add_function != NULL)
{
DBusList *link;
link = _dbus_list_get_first_link (&timeout_list->timeouts);
while (link != NULL)
{
DBusList *next = _dbus_list_get_next_link (&timeout_list->timeouts,
link);
if (!(* add_function) (link->data, data))
{
/* remove it all again and return FALSE */
DBusList *link2;
link2 = _dbus_list_get_first_link (&timeout_list->timeouts);
while (link2 != link)
{
DBusList *next = _dbus_list_get_next_link (&timeout_list->timeouts,
link2);
(* remove_function) (link2->data, data);
link2 = next;
}
return FALSE;
}
link = next;
}
}
/* Remove all current timeouts from previous timeout handlers */
if (timeout_list->remove_timeout_function != NULL)
{
_dbus_list_foreach (&timeout_list->timeouts,
(DBusForeachFunction) timeout_list->remove_timeout_function,
timeout_list->timeout_data);
}
if (timeout_list->timeout_free_data_function != NULL)
(* timeout_list->timeout_free_data_function) (timeout_list->timeout_data);
timeout_list->add_timeout_function = add_function;
timeout_list->remove_timeout_function = remove_function;
timeout_list->timeout_toggled_function = toggled_function;
timeout_list->timeout_data = data;
timeout_list->timeout_free_data_function = free_data_function;
return TRUE;
}
/* this function is self-cancelling if you cancel the transaction */
dbus_bool_t
bus_service_remove_owner (BusService *service,
DBusConnection *connection,
BusTransaction *transaction,
DBusError *error)
{
BusOwner *primary_owner;
_DBUS_ASSERT_ERROR_IS_CLEAR (error);
/* We send out notifications before we do any work we
* might have to undo if the notification-sending failed
*/
/* Send service lost message */
primary_owner = bus_service_get_primary_owner (service);
if (primary_owner != NULL && primary_owner->conn == connection)
{
if (!bus_driver_send_service_lost (connection, service->name,
transaction, error))
return FALSE;
}
else
{
/* if we are not the primary owner then just remove us from the queue */
DBusList *link;
BusOwner *temp_owner;
link = _bus_service_find_owner_link (service, connection);
_dbus_list_unlink (&service->owners, link);
temp_owner = (BusOwner *)link->data;
bus_owner_unref (temp_owner);
_dbus_list_free_link (link);
return TRUE;
}
if (service->owners == NULL)
{
_dbus_assert_not_reached ("Tried to remove owner of a service that has no owners");
}
else if (_dbus_list_length_is_one (&service->owners))
{
if (!bus_driver_send_service_owner_changed (service->name,
bus_connection_get_name (connection),
NULL,
transaction, error))
return FALSE;
}
else
{
DBusList *link;
BusOwner *new_owner;
DBusConnection *new_owner_conn;
link = _dbus_list_get_first_link (&service->owners);
_dbus_assert (link != NULL);
link = _dbus_list_get_next_link (&service->owners, link);
_dbus_assert (link != NULL);
new_owner = (BusOwner *)link->data;
new_owner_conn = new_owner->conn;
if (!bus_driver_send_service_owner_changed (service->name,
bus_connection_get_name (connection),
bus_connection_get_name (new_owner_conn),
transaction, error))
return FALSE;
/* This will be our new owner */
if (!bus_driver_send_service_acquired (new_owner_conn,
service->name,
transaction,
error))
return FALSE;
}
if (!add_restore_ownership_to_transaction (transaction, service, primary_owner))
{
BUS_SET_OOM (error);
return FALSE;
}
bus_service_unlink_owner (service, primary_owner);
if (service->owners == NULL)
bus_service_unlink (service);
return TRUE;
}
