+static int cat(sd_bus *bus, char **args) {
+ _cleanup_free_ char *unit = NULL, *n = NULL;
+ int r = 0;
+ char **name;
+
+ assert(bus);
+ assert(args);
+
+ pager_open_if_enabled();
+
+ STRV_FOREACH(name, args+1) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_strv_free_ char **dropin_paths = NULL;
+ _cleanup_free_ char *fragment_path = NULL;
+ char **path;
+
+ n = unit_name_mangle(*name);
+ if (!n)
+ return log_oom();
+
+ unit = unit_dbus_path_from_name(n);
+ if (!unit)
+ return log_oom();
+
+ if (need_daemon_reload(bus, n) > 0)
+ log_warning("Unit file of %s changed on disk. Run 'systemctl%s daemon-reload'.",
+ n, arg_scope == UNIT_FILE_SYSTEM ? "" : " --user");
+
+ r = sd_bus_get_property_string(
+ bus,
+ "org.freedesktop.systemd1",
+ unit,
+ "org.freedesktop.systemd1.Unit",
+ "FragmentPath",
+ &error,
+ &fragment_path);
+ if (r < 0) {
+ log_warning("Failed to get FragmentPath: %s", bus_error_message(&error, r));
+ continue;
+ }
+
+ r = sd_bus_get_property_strv(
+ bus,
+ "org.freedesktop.systemd1",
+ unit,
+ "org.freedesktop.systemd1.Unit",
+ "DropInPaths",
+ &error,
+ &dropin_paths);
+ if (r < 0) {
+ log_warning("Failed to get DropInPaths: %s", bus_error_message(&error, r));
+ continue;
+ }
+
+ if (!isempty(fragment_path)) {
+ fprintf(stdout, "%s# %s%s\n",
+ ansi_highlight_blue(),
+ fragment_path,
+ ansi_highlight_off());
+ fflush(stdout);
+
+ r = sendfile_full(STDOUT_FILENO, fragment_path);
+ if (r < 0) {
+ log_warning("Failed to cat %s: %s", fragment_path, strerror(-r));
+ continue;
+ }
+ }
+
+ STRV_FOREACH(path, dropin_paths) {
+ fprintf(stdout, "%s# %s\n",
+ isempty(fragment_path) && path == dropin_paths ? "" : "\n",
+ *path);
+ fflush(stdout);
+
+ r = sendfile_full(STDOUT_FILENO, *path);
+ if (r < 0) {
+ log_warning("Failed to cat %s: %s", *path, strerror(-r));
+ continue;
+ }
+ }
+ }
+
+ return r < 0 ? r : 0;
+}
+