Microsoft KB Archive/166904

= Winsock Application Does Not Generate WSAEMSGSIZE Error Code =

Article ID: 166904

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 4.0 Standard Edition

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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.

Keywords: kbapi kbbug kbfix kbnetwork kbwinsock KB166904

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