Imported Upstream version 1.1.1

[platform/upstream/iotivity.git] / resource / csdk / connectivity / lib / libcoap-4.1.1 / pdu.c

diff --git a/resource/csdk/connectivity/lib/libcoap-4.1.1/pdu.c b/resource/csdk/connectivity/lib/libcoap-4.1.1/pdu.c
index 1da4034..e979010 100644 (file)
--- a/resource/csdk/connectivity/lib/libcoap-4.1.1/pdu.c
+++ b/resource/csdk/connectivity/lib/libcoap-4.1.1/pdu.c
@@ -275,7 +275,7 @@ coap_transport_type coap_get_tcp_header_type_from_size(unsigned int size)
     {
         return coap_tcp_16bit;
     }
-    else if (size < ULONG_MAX + COAP_TCP_LENGTH_FIELD_32_BIT)
+    else if (size - COAP_TCP_LENGTH_FIELD_32_BIT < ULONG_MAX)
     {
         return coap_tcp_32bit;
     }