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Hey, Oon Heok,

you MUST read (and understand) the socket-api draft to make
use of the socket API library (that spells: "READ ALL OF IT !").
That document can be found at
http://www.ietf.org/internet-drafts/draft-ietf-tsvwg-sctpsocket-04.txt

You might also want to have a look at a good book about
socket programming (I would recommend the excellent book from
W. Richard Stevens - "Unix Network Programming", and maybe also
Randy Stewart's book "Stream Control Transmission Protocol (SCTP)",
by R. Stewart, Qiaobing Xie, Mark C. Allman)

Then socket programming will make a whole lot more sense to you.

And: ext_sendmsg() returns an error, because you tried to send
something after the SCTP association had been terminated (i.e.:
the transport endpoint has shut down).

Andreas

On Wednesday 04 September 2002 08:00, Oon Heok Kee wrote:
> Hi,
>
> I would like to ask, what's the value that ext_sendmsg() return when
> it's
> called? If I didn't understand wrongly, it returns the number of bytes that
> it's sending, isn't it? Am I right to assume that if it returns a negative
> value, some error has occurred?
>
> I have attached my code as below, because at the portion where it
> calls
> ext_sendmsg(), it always returns an error saying "send() failed: Cannot
> send after transport endpoint shutdown".
>
> Is it because ext_sendmsg() is trying to send an empty user data
> buffer?
>
> Thank you!!
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• [SCTP-Discussion] What does ext_sendmsg() return??, Oon Heok Kee, 09/04/2002
  • Re: [SCTP-Discussion] What does ext_sendmsg() return??, Andreas Jungmaier, 09/04/2002
  • Re: [SCTP-Discussion] What does ext_sendmsg() return??, Thomas Dreibholz, 09/05/2002

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