Winsock Application Does Not Generate WSAEMSGSIZE Error Code (166904)


The information in this article applies to:

  • Microsoft Windows NT Workstation 4.0
  • Microsoft Windows NT Server 4.0
This article was previously published under Q166904

SYMPTOMS

A Winsock application using a sentto function with a buffer size of 2,048 bytes to another Winsock application using a recvfrom function with a 1,024 byte buffer size causes data on the client to be truncated.

CAUSE

The client does not get a WSAEMSGSIZE error generated which would prevent a buffer overrun truncating data.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 4.0.

A supported fix is now available, but has not been fully regression tested and should be applied only to systems experiencing this specific problem. Unless you are severely impacted by this specific problem, Microsoft recommends that you wait for the next Service Pack that contains this fix. Contact Microsoft Technical Support for more information.
Modification Type:MajorLast Reviewed:2/25/2002
Keywords:kbAPI kbbug kbnetwork kbWinsock KB166904
©2002 Microsoft Corporation. All rights reserved.