_public_ int sd_bus_get_property_strv(
sd_bus *bus,
const char *destination,
const char *path,
const char *interface,
const char *member,
sd_bus_error *error,
char ***ret) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
int r;
assert_return(bus, -EINVAL);
assert_return(isempty(interface) || interface_name_is_valid(interface), -EINVAL);
assert_return(member_name_is_valid(member), -EINVAL);
assert_return(ret, -EINVAL);
assert_return(!bus_pid_changed(bus), -ECHILD);
if (!BUS_IS_OPEN(bus->state))
return -ENOTCONN;
r = sd_bus_call_method(bus, destination, path, "org.freedesktop.DBus.Properties", "Get", error, &reply, "ss", strempty(interface), member);
if (r < 0)
return r;
r = sd_bus_message_enter_container(reply, 'v', NULL);
if (r < 0)
return r;
r = sd_bus_message_read_strv(reply, ret);
if (r < 0)
return r;
return 0;
}
_public_ int sd_bus_match_signal_async(
sd_bus *bus,
sd_bus_slot **ret,
const char *sender,
const char *path,
const char *interface,
const char *member,
sd_bus_message_handler_t callback,
sd_bus_message_handler_t install_callback,
void *userdata) {
const char *expression;
assert_return(bus, -EINVAL);
assert_return(bus = bus_resolve(bus), -ENOPKG);
assert_return(!bus_pid_changed(bus), -ECHILD);
assert_return(!sender || service_name_is_valid(sender), -EINVAL);
assert_return(!path || object_path_is_valid(path), -EINVAL);
assert_return(!interface || interface_name_is_valid(interface), -EINVAL);
assert_return(!member || member_name_is_valid(member), -EINVAL);
expression = make_expression(sender, path, interface, member);
return sd_bus_add_match_async(bus, ret, expression, callback, install_callback, userdata);
}
_public_ int sd_bus_get_property_trivial(
sd_bus *bus,
const char *destination,
const char *path,
const char *interface,
const char *member,
sd_bus_error *error,
char type, void *ptr) {
_cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
int r;
assert_return(bus, -EINVAL);
assert_return(isempty(interface) || interface_name_is_valid(interface), -EINVAL);
assert_return(member_name_is_valid(member), -EINVAL);
assert_return(bus_type_is_trivial(type), -EINVAL);
assert_return(ptr, -EINVAL);
assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
r = sd_bus_call_method(bus, destination, path, "org.freedesktop.DBus.Properties", "Get", error, &reply, "ss", strempty(interface), member);
if (r < 0)
return r;
r = sd_bus_message_enter_container(reply, 'v', CHAR_TO_STR(type));
if (r < 0)
return r;
r = sd_bus_message_read_basic(reply, type, ptr);
if (r < 0)
return r;
return 0;
}
_public_ int sd_bus_get_property(
sd_bus *bus,
const char *destination,
const char *path,
const char *interface,
const char *member,
sd_bus_error *error,
sd_bus_message **reply,
const char *type) {
sd_bus_message *rep = NULL;
int r;
assert_return(bus, -EINVAL);
assert_return(isempty(interface) || interface_name_is_valid(interface), -EINVAL);
assert_return(member_name_is_valid(member), -EINVAL);
assert_return(reply, -EINVAL);
assert_return(signature_is_single(type, false), -EINVAL);
assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
assert_return(!bus_pid_changed(bus), -ECHILD);
r = sd_bus_call_method(bus, destination, path, "org.freedesktop.DBus.Properties", "Get", error, &rep, "ss", strempty(interface), member);
if (r < 0)
return r;
r = sd_bus_message_enter_container(rep, 'v', type);
if (r < 0) {
sd_bus_message_unref(rep);
return r;
}
*reply = rep;
return 0;
}
_public_ int sd_bus_set_property(
sd_bus *bus,
const char *destination,
const char *path,
const char *interface,
const char *member,
sd_bus_error *error,
const char *type, ...) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
va_list ap;
int r;
bus_assert_return(bus, -EINVAL, error);
bus_assert_return(isempty(interface) || interface_name_is_valid(interface), -EINVAL, error);
bus_assert_return(member_name_is_valid(member), -EINVAL, error);
bus_assert_return(signature_is_single(type, false), -EINVAL, error);
bus_assert_return(!bus_pid_changed(bus), -ECHILD, error);
if (!BUS_IS_OPEN(bus->state)) {
r = -ENOTCONN;
goto fail;
}
r = sd_bus_message_new_method_call(bus, &m, destination, path, "org.freedesktop.DBus.Properties", "Set");
if (r < 0)
goto fail;
r = sd_bus_message_append(m, "ss", strempty(interface), member);
if (r < 0)
goto fail;
r = sd_bus_message_open_container(m, 'v', type);
if (r < 0)
goto fail;
va_start(ap, type);
r = sd_bus_message_appendv(m, type, ap);
va_end(ap);
if (r < 0)
goto fail;
r = sd_bus_message_close_container(m);
if (r < 0)
goto fail;
return sd_bus_call(bus, m, 0, error, NULL);
fail:
return sd_bus_error_set_errno(error, r);
}
_public_ int sd_bus_get_property_string(
sd_bus *bus,
const char *destination,
const char *path,
const char *interface,
const char *member,
sd_bus_error *error,
char **ret) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *s;
char *n;
int r;
bus_assert_return(bus, -EINVAL, error);
bus_assert_return(isempty(interface) || interface_name_is_valid(interface), -EINVAL, error);
bus_assert_return(member_name_is_valid(member), -EINVAL, error);
bus_assert_return(ret, -EINVAL, error);
bus_assert_return(!bus_pid_changed(bus), -ECHILD, error);
if (!BUS_IS_OPEN(bus->state)) {
r = -ENOTCONN;
goto fail;
}
r = sd_bus_call_method(bus, destination, path, "org.freedesktop.DBus.Properties", "Get", error, &reply, "ss", strempty(interface), member);
if (r < 0)
return r;
r = sd_bus_message_enter_container(reply, 'v', "s");
if (r < 0)
goto fail;
r = sd_bus_message_read_basic(reply, 's', &s);
if (r < 0)
goto fail;
n = strdup(s);
if (!n) {
r = -ENOMEM;
goto fail;
}
*ret = n;
return 0;
fail:
return sd_bus_error_set_errno(error, r);
}