Hi Scott, Just curious - what book are you using? Thanks, Anil ________________________________
From: [EMAIL PROTECTED] on behalf of Scott Morgan
Sent: Thu 5/20/2004 7:46 AM
To: [EMAIL PROTECTED]
Subject: BIO_do_connect fails
I'm new to sockets programming and OpenSSL so I'm expecting this to be a
mistake on my part.
Most the time I'm able to setup basic SSL comms without a problem,
pretty much following the code in the OpenSSL book. However I've been
running some tests with a lot of repeated open/closing of connections
and every now and then the call to BIO_do_connect fails (returns -1).
This wouldn't be a problem, just try the connection again, but I find
that retries will fail for about the next minute, even if I restart both
the server and client apps in this test setup.
I must be missing out some connection closing/flushing or something. Or
is it that too many connections in a short time frame overwhelms
Window's networking system in some way, locking it out for a minute.
SSL_error_string gives "error:02002740:system library:connect:reason(1856)"
Sample client code:
// Connect
m_BIO = BIO_new_connect("127.0.0.1:7777");
BIO_do_connect(m_BIO); // Returns -1
m_SSL = SSL_new(ctx);
SSL_set_bio(m_SSL, m_BIO, m_BIO);
SSL_connect(m_SSL);
// Do stuff...
// Disconnect, am I missing anything?
if(SSL_get_shutdown(m_SSL) & SSL_RECEIVED_SHUTDOWN)
SSL_shutdown(m_SSL);
else
SSL_clear(m_SSL);
SSL_free(m_SSL);
This behaviour happens on WinXP and Win2K PCs, using OpenSSL 0.9.7c all
compiled with VC++ 7.1.
Scott
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