Regarding Flow of sendto (UDP) using IPv6.

James jamesh at
Wed Oct 17 07:19:24 PDT 2007

On Wed, 2007-10-17 at 12:16 +0530, Prasad Dandra wrote:

> Dear All,
> First, I would like to thank you all for the wonderful work of developing
> FreeBSD.
> I have some doubts regarding the BSD stack flow.
> I am very much interested to know the code flow from sendto (UDP case) upto
> udp6_output function when used in IPv6 client (simple client) and also how
> the local port and destination address are assigned without using bind
> when 1st time the sendto is called i.e  where the pcbconnect and pcbbind are
> called (particularly in case of ipv6)?
> Any information provided about the links, books to be refered for more
> details will also be helpful.
> Thank and Regards,
> Prasad
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If it's in the base system, csup your sources - it's in the handbook.

If it's a port, cd /usr/ports/distfiles and untar the source code.

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