systemctl: certainly ignore ENOENT in checking inhibitors

Fixes a bug caused by 804874d26ac73e0af07c4c5d7165c95372f03f6d.

Follow-up for 084f361b509cbffe7ffd5ab6085469f76f799fe5 and
a1417e5563acb73a0accdc12b3af91e4ec1c7f46.

Note, ERRNO_IS_NEG_DISCONNECT() includes ENONET rather than ENOENT...
So, ENOENT needs to be handled explicitly.

Fixes #35757 and #35806.

(cherry picked from commit 66f379b63ddac8c72b9130df86a82b68ec42c119)

diff --git a/src/systemctl/systemctl-logind.c b/src/systemctl/systemctl-logind.c
index d7b373ce0ba05f05067e0a6505c0cf6f03592ab6..792529eaa049cc484e865075502e0eb0a4fbf883 100644 (file)
--- a/src/systemctl/systemctl-logind.c
+++ b/src/systemctl/systemctl-logind.c
@@ -152,7 +152,7 @@ int logind_check_inhibitors(enum action a) {
                 return 0;
 
         r = acquire_bus(BUS_FULL, &bus);
-        if (ERRNO_IS_NEG_DISCONNECT(r) && geteuid() == 0)
+        if ((ERRNO_IS_NEG_DISCONNECT(r) || r == -ENOENT) && geteuid() == 0)
                 return 0; /* When D-Bus is not running (ECONNREFUSED) or D-Bus socket is not created (ENOENT),
                            * allow root to force a shutdown. E.g. when running at the emergency console. */
         if (r < 0)