Re: cryptPopData returning 0 bytes

I think this is being caused by the server Destroying the session before the
client having time to call popData.

If this is the case, can the server check if the client has read the data
before destroying the session or can the act of destroying the session wait
so everything that needs to be done is done ?

Jacques


JexMcByte wrote:
> 
> I have two prog comunicating using a SLL channel.
> 
> The server enters the waiting state and, as soon as the client flushes the
> data it starts running again.
> It pops the data, do some work and the pushes and flushed the data.
> 
> Just after the client flushes the data it does a popdata to wait for the
> server answer butt the return without error and with 0 bytes read before
> the server has the chance to push the answer.
> 
> I've tryed seting CRYPT_OPTION_NET_READTIMEOUT but the behavior remained
> unchanged.
> 
> Am I missing something ?
> 
> server "code"
> 
> 
> 	res = cryptCreateSession( &cryptSession, CRYPT_UNUSED,
> CRYPT_SESSION_SSL_SERVER );
> 	/* Add the server key/certificate and activate the session */
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_PRIVATEKEY, privKey
> );
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_SERVER_PORT,
> thisPtr->port );
> 
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_ACTIVE, 1 );
> 
> 	// some work
> 
> 	res  = cryptPushData( cryptSession, &buf, sizeof(buf), &bytesCopied );
> 	res = cryptFlushData( cryptSession );
> 
> 	res = cryptDestroySession( cryptSession );
> 
> client "code"
> 
> 
> 	int res = cryptCreateSession( &cryptSession, CRYPT_UNUSED,
> CRYPT_SESSION_SSL );
> 	res = cryptSetAttribute( cryptSession, CRYPT_OPTION_NET_READTIMEOUT, 30
> );
> 	res = cryptSetAttributeString( cryptSession, CRYPT_SESSINFO_SERVER_NAME,
> serverAddress, strlen(data->serverAddress) );
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_SERVER_PORT, port
> );
> 	res = cryptSetAttribute( cryptSession, CRYPT_SESSINFO_ACTIVE, 1 );
> 	res = cryptPushData( cryptSession, &buf, sizeof(buf), &bytesCopied );
> 	res = cryptFlushData(  cryptSession );
> 	res = cryptPopData( cryptSession, &answer, sizeof(answer), &bytesCopied
> ); // this returns OK but with bytesCopied with 0
> 	res = cryptDestroySession( cryptSession );
> 
> Thanks in advance,
> Jacques
> 

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