+ return 0;
+}
+
+struct socket_info {
+ const char* id;
+
+ char* type;
+ char* path;
+
+ /* Note: triggered is a list here, although it almost certainly
+ * will always be one unit. Nevertheless, dbus API allows for multiple
+ * values, so let's follow that.*/
+ char** triggered;
+
+ /* The strv above is shared. free is set only in the first one. */
+ bool own_triggered;
+};
+
+static int socket_info_compare(struct socket_info *a, struct socket_info *b) {
+ int o = strcmp(a->path, b->path);
+ if (o == 0)
+ o = strcmp(a->type, b->type);
+ return o;
+}
+
+static int output_sockets_list(struct socket_info *socket_infos, unsigned cs) {
+ struct socket_info *s;
+ unsigned pathlen = sizeof("LISTEN") - 1,
+ typelen = (sizeof("TYPE") - 1) * arg_show_types,
+ socklen = sizeof("UNIT") - 1,
+ servlen = sizeof("ACTIVATES") - 1;
+ const char *on, *off;
+
+ for (s = socket_infos; s < socket_infos + cs; s++) {
+ char **a;
+ unsigned tmp = 0;
+
+ socklen = MAX(socklen, strlen(s->id));
+ if (arg_show_types)
+ typelen = MAX(typelen, strlen(s->type));
+ pathlen = MAX(pathlen, strlen(s->path));
+
+ STRV_FOREACH(a, s->triggered)
+ tmp += strlen(*a) + 2*(a != s->triggered);
+ servlen = MAX(servlen, tmp);
+ }
+
+ if (cs) {
+ if (!arg_no_legend)
+ printf("%-*s %-*.*s%-*s %s\n",
+ pathlen, "LISTEN",
+ typelen + arg_show_types, typelen + arg_show_types, "TYPE ",
+ socklen, "UNIT",
+ "ACTIVATES");
+
+ for (s = socket_infos; s < socket_infos + cs; s++) {
+ char **a;
+
+ if (arg_show_types)
+ printf("%-*s %-*s %-*s",
+ pathlen, s->path, typelen, s->type, socklen, s->id);
+ else
+ printf("%-*s %-*s",
+ pathlen, s->path, socklen, s->id);
+ STRV_FOREACH(a, s->triggered)
+ printf("%s %s",
+ a == s->triggered ? "" : ",", *a);
+ printf("\n");
+ }
+
+ on = ansi_highlight(true);
+ off = ansi_highlight(false);
+ if (!arg_no_legend)
+ printf("\n");
+ } else {
+ on = ansi_highlight_red(true);
+ off = ansi_highlight_red(false);
+ }
+
+ if (!arg_no_legend) {
+ printf("%s%u sockets listed.%s\n", on, cs, off);
+ if (!arg_all)
+ printf("Pass --all to see loaded but inactive sockets, too.\n");
+ }
+
+ return 0;
+}
+
+static int list_sockets(DBusConnection *bus, char **args) {
+ _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
+ _cleanup_free_ struct unit_info *unit_infos = NULL;
+ struct socket_info *socket_infos = NULL;
+ const struct unit_info *u;
+ struct socket_info *s;
+ unsigned cu = 0, cs = 0;
+ size_t size = 0;
+ int r;
+
+ pager_open_if_enabled();
+
+ r = get_unit_list(bus, &reply, &unit_infos, &cu);
+ if (r < 0)
+ return r;
+
+ for (u = unit_infos; u < unit_infos + cu; u++) {
+ const char *dot;
+ _cleanup_strv_free_ char **listen = NULL, **triggered = NULL;
+ unsigned c = 0, i;
+
+ if (!output_show_unit(u))
+ continue;
+
+ if ((dot = strrchr(u->id, '.')) && !streq(dot+1, "socket"))
+ continue;
+
+ r = get_triggered_units(bus, u->unit_path, &triggered);
+ if (r < 0)
+ goto cleanup;
+
+ r = get_listening(bus, u->unit_path, &listen, &c);
+ if (r < 0)
+ goto cleanup;
+
+ if (!GREEDY_REALLOC(socket_infos, size, cs + c)) {
+ r = log_oom();
+ goto cleanup;
+ }
+
+ for (i = 0; i < c; i++)
+ socket_infos[cs + i] = (struct socket_info) {
+ .id = u->id,
+ .type = listen[i*2],
+ .path = listen[i*2 + 1],
+ .triggered = triggered,
+ .own_triggered = i==0,
+ };
+
+ /* from this point on we will cleanup those socket_infos */
+ cs += c;
+ free(listen);
+ listen = triggered = NULL; /* avoid cleanup */