corrected possible overflow in dlmstp.c for PIC and RTOS-32. Thank you Martin!

2009-03-06 11:04:51 +00:00
parent f9d6bd8ed2
commit 75bd715bd4
3 changed files with 3 additions and 3 deletions
@@ -112,7 +112,7 @@ int dlmstp_send_pdu(
            return -2;
        }
        dlmstp_get_my_address(&src);
-        if ((8 /* header len */  + pdu_len) > MAX_MPDU) {
+        if ((MAX_HEADER + pdu_len) > MAX_MPDU) {
            return -4;
        }
        bytes_sent =
@@ -89,8 +89,8 @@ int dlmstp_send_pdu(
            return -2;
        }
        /* header len */
-        mtu_len = 8;
-        if ((mtu_len + pdu_len) > MAX_MPDU) {
+        mtu_len = MAX_HEADER - 2 /* data crc */;
+        if ((MAX_HEADER + pdu_len) > MAX_MPDU) {
 #if PRINT_ENABLED
            fprintf(stderr, "mstp: PDU is too big to send!\n");
 #endif