Jinmei,
>
> It's true that flow IDs are source oriented, but if sin6_scope_id is
> ignored in (e.g.) connect(), how can we call connect() without binding
> beforehand and with specifying the flow ID?
>
I assume you intended to say sin6_flowinfo above.
The answer is, you couldn't. If you wanted to use a flow ID you would
need to assign it to the socket before connecting. To me this makes
perfect sense since it is analogous to binding to a specific port or
letting the stack choose the local port for the you.
If you want a specific port or flow ID you must bind. If you don't care
what value is chosen then don't bind.
Tim Hartrick
Mentat Inc.
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