systemctl: warn in intervals before going down when delayed shutdown is used

[elogind.git] / src / systemctl.c

diff --git a/src/systemctl.c b/src/systemctl.c
index e517031ceac0d5af15d65e5838e119014888c776..ca676f9da3437c2493de38e21282f8e3f6f31279 100644 (file)
--- a/src/systemctl.c
+++ b/src/systemctl.c
@@ -4233,11 +4233,13 @@ static int shutdown_parse_argv(int argc, char *argv[]) {
                 }
         }
 
-        if (argc > optind)
+        if (argc > optind) {
                 if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) {
                         log_error("Failed to parse time specification: %s", argv[optind]);
                         return r;
                 }
+        } else
+                arg_when = USEC_PER_MINUTE;
 
         /* We skip the time argument */
         if (argc > optind + 1)
@@ -4694,7 +4696,7 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError
         return verbs[i].dispatch(bus, argv + optind, left);
 }
 
-static int send_shutdownd(usec_t t, char mode) {
+static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) {
         int fd = -1;
         struct msghdr msghdr;
         struct iovec iovec;
@@ -4709,6 +4711,10 @@ static int send_shutdownd(usec_t t, char mode) {
         zero(c);
         c.elapse = t;
         c.mode = mode;
+        c.warn_wall = warn;
+
+        if (message)
+                strncpy(c.wall_message, message, sizeof(c.wall_message));
 
         if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0)
                 return -errno;
@@ -4812,10 +4818,18 @@ static int halt_main(DBusConnection *bus) {
         }
 
         if (arg_when > 0) {
-                if ((r = send_shutdownd(arg_when,
-                                        arg_action == ACTION_HALT ? 'H' :
-                                        arg_action == ACTION_POWEROFF ? 'P' :
-                                        'r')) < 0)
+                char *m;
+
+                m = strv_join(arg_wall, " ");
+                r = send_shutdownd(arg_when,
+                                   arg_action == ACTION_HALT     ? 'H' :
+                                   arg_action == ACTION_POWEROFF ? 'P' :
+                                                                   'r',
+                                   !arg_no_wall,
+                                   m);
+                free(m);
+
+                if (r < 0)
                         log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r));
                 else
                         return 0;
@@ -4935,7 +4949,7 @@ int main(int argc, char*argv[]) {
                 break;
 
         case ACTION_CANCEL_SHUTDOWN:
-                retval = send_shutdownd(0, 0) < 0;
+                retval = send_shutdownd(0, 0, false, NULL) < 0;
                 break;
 
         case ACTION_INVALID: