util: rework strappenda(), and rename it strjoina()

[elogind.git] / src / core / manager.c

diff --git a/src/core/manager.c b/src/core/manager.c
index e2df91196e58f2f4020f3f12408ff2f612c0af7e..5fba0043e4510119652867c83a79cb02064758d3 100644 (file)
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -549,6 +549,9 @@ int manager_new(SystemdRunningAs running_as, bool test_run, Manager **_m) {
 
         m->test_run = test_run;
 
+        /* Reboot immediately if the user hits C-A-D more often than 7x per 2s */
+        RATELIMIT_INIT(m->ctrl_alt_del_ratelimit, 2 * USEC_PER_SEC, 7);
+
         r = manager_default_environment(m);
         if (r < 0)
                 goto fail;
@@ -1721,7 +1724,19 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t
 
                 case SIGINT:
                         if (m->running_as == SYSTEMD_SYSTEM) {
-                                manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
+
+                                /* If the user presses C-A-D more than
+                                 * 7 times within 2s, we reboot
+                                 * immediately. */
+
+                                if (ratelimit_test(&m->ctrl_alt_del_ratelimit))
+                                        manager_start_target(m, SPECIAL_CTRL_ALT_DEL_TARGET, JOB_REPLACE_IRREVERSIBLY);
+                                else {
+                                        log_notice("Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately.");
+                                        status_printf(NULL, true, false, "Ctrl-Alt-Del was pressed more than 7 times within 2s, rebooting immediately.");
+                                        m->exit_code = MANAGER_REBOOT;
+                                }
+
                                 break;
                         }
 
@@ -2091,8 +2106,7 @@ void manager_send_unit_audit(Manager *m, Unit *u, int type, bool success) {
                 return;
         }
 
-        msg = strappenda("unit=", p);
-
+        msg = strjoina("unit=", p);
         if (audit_log_user_comm_message(audit_fd, type, msg, "systemd", NULL, NULL, NULL, success) < 0) {
                 if (errno == EPERM)
                         /* We aren't allowed to send audit messages?