+ /* Try to retrieve TID from creds if it wasn't passed to us */
+ if (tid <= 0 && (c->mask & SD_BUS_CREDS_TID))
+ tid = c->tid;
+
+ /* Calculate what we shall and can add */
+ missing = mask & ~(c->mask|SD_BUS_CREDS_PID|SD_BUS_CREDS_TID|SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_WELL_KNOWN_NAMES|SD_BUS_CREDS_DESCRIPTION|SD_BUS_CREDS_AUGMENT);
+ if (missing == 0)
+ return 0;
+
+ c->pid = pid;
+ c->mask |= SD_BUS_CREDS_PID;