bus: add API for querying the kdbus message sequence number

[elogind.git] / src / libsystemd / sd-bus / bus-message.c

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 1a2039b8cd77a10e52046f635087c6cd6f2d57a5..0c3913e2b0c6f2a9f8c60c86ecd3cc468a314e40 100644 (file)
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -898,6 +898,15 @@ _public_ int sd_bus_message_get_realtime_timestamp(sd_bus_message *m, uint64_t *
         return 0;
 }
 
+_public_ int sd_bus_message_get_seqnum(sd_bus_message *m, uint64_t *seqnum) {
+        assert_return(m, -EINVAL);
+        assert_return(seqnum, -EINVAL);
+        assert_return(m->seqnum > 0, -ENODATA);
+
+        *seqnum = m->seqnum;
+        return 0;
+}
+
 _public_ sd_bus_creds *sd_bus_message_get_creds(sd_bus_message *m) {
         assert_return(m, NULL);