returning early if no data was received

2005-03-23 16:03:34 +00:00
parent 32562856b8
commit a69905c8a3
1 changed files with 3 additions and 0 deletions
@@ -318,6 +318,9 @@ uint16_t ethernet_receive(
        return 0;
    }

+    if (received_bytes == 0)
+      return 0;
+    
    /* the signature of an 802.2 BACnet packet */
    if ((buf[14] != 0x82) && (buf[15] != 0x82)) {
        //fprintf(stderr,"ethernet: Non-BACnet packet\n");