+
+_public_ int sd_bus_get_scope(sd_bus *bus, const char **scope) {
+ int r;
+
+ assert_return(bus, -EINVAL);
+ assert_return(scope, -EINVAL);
+ assert_return(!bus_pid_changed(bus), -ECHILD);
+
+ if (bus->is_kernel) {
+ _cleanup_free_ char *n = NULL;
+ const char *dash;
+
+ r = bus_kernel_get_bus_name(bus, &n);
+ if (r < 0)
+ return r;
+
+ if (streq(n, "0-system")) {
+ *scope = "system";
+ return 1;
+ }
+
+ dash = strchr(n, '-');
+ if (streq(dash, "-user")) {
+ *scope = "user";
+ return 1;
+ }
+ }
+
+ if (bus->is_user) {
+ *scope = "user";
+ return 1;
+ }
+
+ if (bus->is_system) {
+ *scope = "system";
+ return 1;
+ }
+
+ return -ENODATA;
+}