On Fri, Mar 29, 2002 at 07:13:29PM -0500, Christopher Faylor wrote:
>On Fri, Mar 29, 2002 at 03:36:23PM -0500, David E Euresti wrote:
>>
>>Actually the Single UNIX Specification says:
>>
>> If the socket is connectionless-mode, the message will be sent to
>> the address specified by dest_addr. If the socket is
>> connection-mode, dest_addr is ignored.
>>
>>And since sendto calls either WSASendTo or winsock 1 sendTo that state:
>>
>> Even if the connectionless socket has been previously connected
>> using the connect function to a specific address, lpTo overrides
>> the destination address for that particular datagram only. On a
>> connection-oriented socket, the lpTo and iToLen parameters are
>> ignored; in this case, the WSASendTo is equivalent to WSASend.
>>
>>Therefore there should be no harm in passing in the NULL value to sendto.
>
>I admit that I did miss that part (obviously) but I don't think that it
>follows that dest_addr can always be NULL. It looks like the value can
>be NULL only if the socket is not connection-less. Otherwise, it should
\/
is
>be checked for validity.
cgf
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