On Mon, Jan 12, 2004 at 03:51:46PM +0800, Patrick Coleman wrote:
> I'm trying to set up a SSL connection with non blocking sockets. When the
> SSL_accept() fails with SSL_ERROR_WANT_READ/WRITE, I go back to my select()
> function. However, I'm handling multiple connections at once, so when select()
> triggers again, I need to be able to check the state on the SSL to see whether I go
> back to SSL_accept, or to a SSL_read or SSL_write on another connection. Other
> examples I've read just use a variable like int blocked_on_read, but they only
> handle one connection. SSL_state_string seems to do what I want, but I cant find a
> list of strings it outputs so I can see what it says when I'm at
> SSL_ERROR_WANT_READ/WRITE. I feel that writing a program that gets an SSL into the
> SSL_ERROR_WANT_READ state then looking at SSL_state_string
> is overkill :-). Is there a list of possible outputs for SSL_state_string anywhere?
> Am I going about this the wrong way (should I be using callback functions)?
select() will tell you on which file desciptor action is required.
When you have WANT_READ, you set up select() to trigger on incoming data
with FD_SET(). Once select() is returning you use FD_ISSET() to find out
whether data are available, in which case you continue your operation on
this particular file descriptor.
Best regards,
Lutz
--
Lutz Jaenicke [EMAIL PROTECTED]
http://www.aet.TU-Cottbus.DE/personen/jaenicke/
BTU Cottbus, Allgemeine Elektrotechnik
Universitaetsplatz 3-4, D-03044 Cottbus
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