+static int interrupt_signal_handler(sd_event_source *s, const struct signalfd_siginfo *si, void *userdata) {
+ log_notice("Transfer aborted.");
+ sd_event_exit(sd_event_source_get_event(s), EINTR);
+ return 0;
+}
+
+static void on_tar_finished(TarImport *import, int error, void *userdata) {
+ sd_event *event = userdata;
+ assert(import);
+
+ if (error == 0)
+ log_info("Operation completed successfully.");
+
+ sd_event_exit(event, abs(error));
+}
+
+static int pull_tar(int argc, char *argv[], void *userdata) {
+ _cleanup_(tar_import_unrefp) TarImport *import = NULL;
+ _cleanup_event_unref_ sd_event *event = NULL;
+ const char *url, *local;
+ _cleanup_free_ char *l = NULL, *ll = NULL;
+ int r;
+
+ url = argv[1];
+ if (!http_url_is_valid(url)) {
+ log_error("URL '%s' is not valid.", url);
+ return -EINVAL;
+ }
+
+ if (argc >= 3)
+ local = argv[2];
+ else {
+ r = import_url_last_component(url, &l);
+ if (r < 0)
+ return log_error_errno(r, "Failed get final component of URL: %m");
+
+ local = l;
+ }
+
+ if (isempty(local) || streq(local, "-"))
+ local = NULL;
+
+ if (local) {
+ r = tar_strip_suffixes(local, &ll);
+ if (r < 0)
+ return log_oom();
+
+ local = ll;
+
+ if (!machine_name_is_valid(local)) {
+ log_error("Local image name '%s' is not valid.", local);
+ return -EINVAL;
+ }
+
+ if (!arg_force) {
+ r = image_find(local, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
+ else if (r > 0) {
+ log_error_errno(EEXIST, "Image '%s' already exists.", local);
+ return -EEXIST;
+ }
+ }
+
+ log_info("Pulling '%s', saving as '%s'.", url, local);
+ } else
+ log_info("Pulling '%s'.", url);
+
+ r = sd_event_default(&event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate event loop: %m");
+
+ assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
+ sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
+ sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
+
+ r = tar_import_new(&import, event, arg_image_root, on_tar_finished, event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate importer: %m");
+
+ r = tar_import_pull(import, url, local, arg_force, arg_verify);
+ if (r < 0)
+ return log_error_errno(r, "Failed to pull image: %m");
+
+ r = sd_event_loop(event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to run event loop: %m");
+
+ log_info("Exiting.");
+ return -r;
+}
+
+static void on_raw_finished(RawImport *import, int error, void *userdata) {
+ sd_event *event = userdata;
+ assert(import);
+
+ if (error == 0)
+ log_info("Operation completed successfully.");
+
+ sd_event_exit(event, abs(error));
+}
+
+static int pull_raw(int argc, char *argv[], void *userdata) {
+ _cleanup_(raw_import_unrefp) RawImport *import = NULL;
+ _cleanup_event_unref_ sd_event *event = NULL;
+ const char *url, *local;
+ _cleanup_free_ char *l = NULL, *ll = NULL;
+ int r;
+
+ url = argv[1];
+ if (!http_url_is_valid(url)) {
+ log_error("URL '%s' is not valid.", url);
+ return -EINVAL;
+ }
+
+ if (argc >= 3)
+ local = argv[2];
+ else {
+ r = import_url_last_component(url, &l);
+ if (r < 0)
+ return log_error_errno(r, "Failed get final component of URL: %m");
+
+ local = l;
+ }
+
+ if (isempty(local) || streq(local, "-"))
+ local = NULL;
+
+ if (local) {
+ r = raw_strip_suffixes(local, &ll);
+ if (r < 0)
+ return log_oom();
+
+ local = ll;
+
+ if (!machine_name_is_valid(local)) {
+ log_error("Local image name '%s' is not valid.", local);
+ return -EINVAL;
+ }
+
+ if (!arg_force) {
+ r = image_find(local, NULL);
+ if (r < 0)
+ return log_error_errno(r, "Failed to check whether image '%s' exists: %m", local);
+ else if (r > 0) {
+ log_error_errno(EEXIST, "Image '%s' already exists.", local);
+ return -EEXIST;
+ }
+ }
+
+ log_info("Pulling '%s', saving as '%s'.", url, local);
+ } else
+ log_info("Pulling '%s'.", url);
+
+ r = sd_event_default(&event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate event loop: %m");
+
+ assert_se(sigprocmask_many(SIG_BLOCK, SIGTERM, SIGINT, -1) == 0);
+ sd_event_add_signal(event, NULL, SIGTERM, interrupt_signal_handler, NULL);
+ sd_event_add_signal(event, NULL, SIGINT, interrupt_signal_handler, NULL);
+
+ r = raw_import_new(&import, event, arg_image_root, on_raw_finished, event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to allocate importer: %m");
+
+ r = raw_import_pull(import, url, local, arg_force, arg_verify);
+ if (r < 0)
+ return log_error_errno(r, "Failed to pull image: %m");
+
+ r = sd_event_loop(event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to run event loop: %m");
+
+ log_info("Exiting.");
+ return -r;
+}
+
+static void on_dkr_finished(DkrImport *import, int error, void *userdata) {