[Udpcast] does sender need to bind a socket to the multicast addr and receiver (portbase) port ?
alain at knaff.lu
Tue Feb 16 00:11:00 CET 2010
Rodriguez Alban wrote:
> EDIT: it works with makeSocket only if I call htons() to the port
> mysock = makeSocket(ADDR_TYPE_MCAST,
> Other calls to makeSocket() doesn't use htons to swap the bytes so I
> initially I wasn't doing either ...
makeSocket already does the byte-swapping itself (in the called function
initSockAddress). So, by doing it here you really make it bind to a
different port than the intended one.
The effect would be the same as doing:
mysock = makeSocket(ADDR_TYPE_MCAST,
... or even suppressing that call altogether... Could you try whether
these 2 changes (or one of them) work with your hardware?
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