The big interface switchover for Packet, Send, Receive, and AMSend.

[tinyos-2.x.git] / apps / AntiTheft / Root / AntiTheftRootC.nc

diff --git a/apps/AntiTheft/Root/AntiTheftRootC.nc b/apps/AntiTheft/Root/AntiTheftRootC.nc
index 7a9a2630a5f1943de48676fb9dd22847e2bb3cbc..896bc812a89d332afbeda66a391cc993f026316a 100644 (file)
--- a/apps/AntiTheft/Root/AntiTheftRootC.nc
+++ b/apps/AntiTheft/Root/AntiTheftRootC.nc
@@ -93,11 +93,12 @@ implementation
       {
        /* Copy payload (newAlert) from collection system to our serial
           message buffer (fwdAlert), then send our serial message */
-       alert_t *fwdAlert = call AlertsForward.getPayload(&fwdMsg);
-
-       *fwdAlert = *newAlert;
-       if (call AlertsForward.send(AM_BROADCAST_ADDR, &fwdMsg, sizeof *fwdAlert) == SUCCESS)
-         fwdBusy = TRUE;
+       alert_t *fwdAlert = call AlertsForward.getPayload(&fwdMsg, sizeof(alert_t));
+       if (fwdAlert != NULL) {
+         *fwdAlert = *newAlert;
+         if (call AlertsForward.send(AM_BROADCAST_ADDR, &fwdMsg, sizeof *fwdAlert) == SUCCESS)
+           fwdBusy = TRUE;
+       }
       }
     return msg;
   }