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-rw-r--r--src/libsystemd-bus/bus-util.c26
-rw-r--r--src/libsystemd-bus/bus-util.h2
2 files changed, 28 insertions, 0 deletions
diff --git a/src/libsystemd-bus/bus-util.c b/src/libsystemd-bus/bus-util.c
index 2daf8c1dc4..7a21975092 100644
--- a/src/libsystemd-bus/bus-util.c
+++ b/src/libsystemd-bus/bus-util.c
@@ -103,6 +103,32 @@ int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t
return 0;
}
+int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error) {
+ _cleanup_bus_message_unref_ sd_bus_message *rep = NULL;
+ int r, has_owner = 0;
+
+ assert(c);
+ assert(name);
+
+ r = sd_bus_call_method(c,
+ "org.freedesktop.DBus",
+ "/org/freedesktop/dbus",
+ "org.freedesktop.DBus",
+ "NameHasOwner",
+ error,
+ &rep,
+ "s",
+ name);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read_basic(rep, 'b', &has_owner);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ return has_owner;
+}
+
int bus_verify_polkit(
sd_bus *bus,
sd_bus_message *m,
diff --git a/src/libsystemd-bus/bus-util.h b/src/libsystemd-bus/bus-util.h
index 20739a92bd..38d468edad 100644
--- a/src/libsystemd-bus/bus-util.h
+++ b/src/libsystemd-bus/bus-util.h
@@ -56,6 +56,8 @@ int bus_async_unregister_and_quit(sd_event *e, sd_bus *bus, const char *name);
int bus_event_loop_with_idle(sd_event *e, sd_bus *bus, const char *name, usec_t timeout);
+int bus_name_has_owner(sd_bus *c, const char *name, sd_bus_error *error);
+
int bus_check_peercred(sd_bus *c);
int bus_verify_polkit(sd_bus *bus, sd_bus_message *m, const char *action, bool interactive, bool *_challenge, sd_bus_error *e);