The buffer size for the local and remote address must be 16 bytes more than the size of the sockaddr structure for the transport protocol in use because the addresses are written in an internal format
AcceptEx/GetAcceptExSockaddrs
这两个函数 参数要求的 ,参数需求长度 必须 为 地址长度+16字节
dwLocalAddressLength
The number of bytes reserved for the local address information. This value must be at least 16 bytes more than the maximum address length for the transport protocol in use.
dwRemoteAddressLength
The number of bytes reserved for the remote address information. This value must be at least 16 bytes more than the maximum address length for the transport protocol in use. Cannot be zero.