(I've folded some long lines of the original message)
>>>>> On Mon, 22 Dec 2003 15:54:43 +0530,
>>>>> Jayabharathi <[EMAIL PROTECTED]> said:
> Does the socket options like Destination, Hop-by-hop, and routing
> header are only used for Raw sockets or needed for all other sockets
> also???
I'm not sure what you meant by "needed", but:
As for the receiving side:
RFC3542, or at least the intention of the RFC, specifies an
application should also be able to get received destination
options/hop-by-hop options/routing header(s) on a UDP socket.
However, it intentionally leaves the implication for a TCP socket as
undefined.
As for the sending side:
RFC3542 specifies an application should be able to send packets with
extension headers on any kinds of socket; UDP, TCP, or raw.
> If they are to be implemented with the other sockets also (STREAM
> and DATAGRAM ), how does applications receive and use the received
> option information.
Regarding a UDP socket, the usage is exactly same as that for a raw
socket: use ancillary data items with recvmsg().
> In the same way how does we send the same using send / sendto.
Via ancillary data items or socket options.
JINMEI, Tatuya
Communication Platform Lab.
Corporate R&D Center, Toshiba Corp.
[EMAIL PROTECTED]
p.s. I'd strongly recommend you to read RFC3542 first, if not yet.
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